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There are 8443 matches found
| Name | BBrefID | Year | Span | Games | Team | League | Location |
| Ed Abbaticchio | abbati001edw | 1906 | , | ||||
| Doc Abbott | abbott001cha | 1906 | no g. | Charleston Sea Gulls | South Atlantic League | , | |
| Doc Abbott | abbott001cha | 1906 | 131 g. | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Fred Abbott | abbott002har | 1906 | 4/18-9/16 | Toledo Mud Hens | American Association | , | |
| Mickey Abbott | 1906 | 4/28-8/31 | Lowell Tigers | New England League | , | ||
| Ody Abbott | abbott001ody | 1906-10 | Wash & Jeff Col | College | , | ||
| Ody Abbott | abbott001ody | 1906 | 8/6-9/8 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Spencer Abbott | abbott001spe | 1906 | 5/4-6/11 | Springfield Midgets | Western Association | , | |
| Spencer Abbott | abbott001spe | 1906 | 6/15-8/6 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Spencer Abbott | abbott001spe | 1906 | 8/9-9/1 | Joplin Miners | Western Association | , | |
| Spencer Abbott | abbott001spe | 1906 | 9/3-9/23 | Topeka White Sox | Western Association | , | |
| Abercrombie | 1906 | 7/6 | Manning | South Carolina League | , | ||
| Harry Ables | ables-001har | 1906 | +4/23+ | Terrell TX | Independent | , | |
| Harry Ables | ables-001har | 1906 | 6/8 | Dallas Giants | Texas League | , | |
| Harry Ables | ables-001har | 1906 | Lawton OK | Independent | , | ||
| Bill Abstein | abstei001wil | 1906 | 4/17-9/15 | Shreveport Pirates | Southern Association | , | |
| Bill Abstein | abstei001wil | 1906 | 9/25- | 8 g. | Pittsburgh | National League | Pittsburgh, PA |
| Victor Accorsini | accors001vic | 1906 | 4/26-9/8 | Norwich Reds | Connecticut State League | , | |
| Ackenbach | 1906 | 5/2-5/16 | Guthrie Senators | South Central League | , | ||
| Ackenbach | 1906 | 5/2-5/16 | Guthrie Senators | South Central League | , | ||
| Charles Ackerman | 1906 | Fort Dodge Gypsumites | Iowa League | , | |||
| Robert Ackerman | adler-001rob | 1906 | 361 ab | Poughkeepsie Colts | Hudson River League | , | |
| Arnold Adamina | adamin001arn | 1906 | Alameda Grays | California League | , | ||
| Arnold Adamina | adamin001arn | 1906 | Oakland Commuters | California League | , | ||
| Babe Adams | adams-003cha | 1906 | 4/18 | St. Louis | National League | St. Louis, MO | |
| Babe Adams | adams-003cha | 1906 | 5/21-6/4 | Louisville Colonels | American Association | , | |
| Babe Adams | adams-003cha | 1906 | 6/18-8/27 | Denver Grizzlies | Western League | , | |
| George Adams | 1906 | 4/28-7/22 | Butte Miners | Northwestern League | , | ||
| Harry Adams | adams-006har | 1906 | 4/30-5/19 | Fort Smith Razorbacks | South Central League | , | |
| Jimmy Adams | 1906 | 6 g. | Seattle Siwashes | Pacific Coast League | , | ||
| Jimmy Adams | 1906 | Los Angeles Angels | Pacific Coast League | , | |||
| Joe Adams | adams-003jos | 1906 | Pana IL | Independent | , | ||
| Milton Adams | adams-001cly | 1906 | 4/18-6/1 | Jacksonville Jays | South Atlantic League | , | |
| Milton Adams | adams-001cly | 1906 | DuBois Miners | Interstate League | , | ||
| Paul Adams | 1906 | 5/19-7/1 | Duluth White Sox | Northern-Copper Country League | , | ||
| Rick Adams | adams-001reu | 1906 | 4/26-9/1 | Cleburne Railroaders | Texas League | , | |
| Rick Adams | adams-001reu | 1906 | 9/8-9/16 | St. Paul Saints | American Association | , | |
| Merle Adkins | adkins001mer | 1906 | 4/28-9/21 | Baltimore Orioles | Eastern League | , | |
| Robert Adler | 1906 | 361 ab | Poughkeepsie Colts | Hudson River League | , | ||
| Joe Agan | agan--001jos | 1906 | 5/4-5/10 | Coffeyville Bricks | Kansas State League | , | |
| Joe Agan | agan--001jos | 1906 | +5/19+ | Independence Coyotes | Kansas State League | , | |
| Joe Agan | agan--001jos | 1906 | +6/12+ | Umpire | Kansas State League | , | |
| John Agnew | 1906 | +9/3+ | Troy NY | Independent | , | ||
| Pete Agnew | agnew-001pet | 1906 | -7/ | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Walter Ahearn | ahearn001wal | 1906 | 4/27-9/8 | Haverhill Hustlers | New England League | , | |
| Alvia Ahlin | ahlin-001a-- | 1906 | 5/3-5/18 | Lincoln Ducklings | Western League | , | |
| Dad Ahorn | ahorn-001a-- | 1906 | 5/1- | Umpire | South Central League | , | |
| Dad Ahorn | ahorn-001a-- | 1906 | 6/19-6/23 | Umpire | Southwest League | , | |
| Dad Ahorn | ahorn-001a-- | 1906 | 7/21 | South McAlester Miners | South Central League | , | |
| Dad Ahorn | ahorn-001a-- | 1906 | 8/22-9/1 | Umpire | Western Association | , | |
| Frank Aiken | aiken-001fra | 1906 | 11 g. | Green Bay Colts | Wisconsin State League | , | |
| Raleigh Aitchison | aitchi001ral | 1906 | 5/3- | Fort Scott Giants | Kansas State League | , | |
| Abe Akers | akers-001abe | 1906 | no g. | Macon Brigands | South Atlantic League | , | |
| Albert Akers | 1906 | 23 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| Roy Akin | akin--001roy | 1906 | 4/25-9/2 | Cleburne Railroaders | Texas League | , | |
| Bobby Alberts | albert002rob | 1906 | Boone/Clinton Miners | Iowa League | , | ||
| Bobby Alberts | albert002rob | 1906 | Fort Dodge Gypsumites | Iowa League | , | ||
| Charles Alberts | 1906 | 5/3-6/30 | Erie Sailors | Interstate League | , | ||
| Charles Alberts | 1906 | 7/30-9/17 | Springfield Babes | Central League | , | ||
| Cy Alberts | albert001fre | 1906 | 4/29-9/24 | Springfield Babes | Central League | , | |
| Gus Alberts | albert001gus | 1906 | Bartlesville Indians | Kansas State League | , | ||
| Robert Albright | 1906 | 6/28 | Guthrie Senators | South Central League | , | ||
| John Alcock | alcock001joh | 1906 | 4/18-5/23 | Birmingham Barons | Southern Association | , | |
| John Alcock | alcock001joh | 1906 | 5/28-6/17 | Meridian Ribboners | Cotton States League | , | |
| John Alcock | alcock001joh | 1906 | 6/18-8/11 | Birmingham Barons | Southern Association | , | |
| Dallas Alderman | alderm001dal | 1906 | Norwich Reds | Connecticut State League | , | ||
| Dallas Alderman | alderm001dal | 1906 | 5/14 | South Bend Greens | Central League | , | |
| Dallas Alderman | alderm001dal | 1906 | 7/16-7/19 | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Dallas Alderman | alderm001dal | 1906 | <10 | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | |
| Dallas Alderman | alderm001dal | 1906 | Shelbyville TN | Independent | , | ||
| Bill Alexander | alexan005wil | 1906 | 92 g. | San Antonio Bronchos | South Texas League | , | |
| Bill Alexander | alexan005wil | 1906 | Austin Senators | South Texas League | , | ||
| E. D. Alexander | 1906 | 5/3-5/16+ | Albany | Georgia State League | , | ||
| Simon Alford | 1906 | Emporia State U. | College | , | |||
| Simon Alford | 1906 | 6/29-9/9 | Chanute Browns | Kansas State League | , | ||
| Harry Allemang | allema001har | 1906 | 4/14-6/8 | Nashville Volunteers | Southern Association | , | |
| Harry Allemang | allema001har | 1906 | +7/24- | Sharon Steels | Ohio-Pennsylvania League | , | |
| Allen | 1906 | 4/27-4/28 | Williamsport Millionaires | Tri-State League | , | ||
| Allen | 1906 | +5/26-7/7 | Waycross Machinists | Georgia State League | , | ||
| Allen | 1906 | 6/11-6/12 | Chanute Browns | Kansas State League | , | ||
| A. N. Allen | 1906 | Chanute Browns | Kansas State League | , | |||
| Charles Allen | 1906 | 5/24-5/26 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Charles Allen | 1906 | 5/30-8/25 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Charles Allen | 1906 | Atlantic City NJ | Independent | , | |||
| Ed Allen | 1906 | 34 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| Frank Allen | 1906 | 4/24-5/11 | Jacksonville Jays | South Atlantic League | , | ||
| Frank Allen | 1906 | 7/18-9/15 | Little Rock Travelers | Southern Association | , | ||
| George Allen | 1906 | Punxsutawney Policemen | Interstate League | , | |||
| Thomas Allen | 1906 | Auburn | Empire State League | , | |||
| Allison | 1906 | +8/26+ | Bowling Green KY | Independent | , | ||
| Mack Allison | alliso001mac | 1906 | Owensborough | Kentucky-Illinois-Tennessee League | , | ||
| Arthur Alloway | allowa001art | 1906 | Umpire | Central League | , | ||
| Walter Allred | allred000wal | 1906 | 4/18-5/2 | Columbia Gamecocks | South Atlantic League | , | |
| Walter Allred | allred000wal | 1906 | +7/5+ | Grand Leaders | Trolley League | , | |
| Martin Almquist | 1906 | McPherson KS | Independent | , | |||
| Whitey Alpermann | alperm001cha | 1906 | 4/13- | 128 g. | Brooklyn | National League | Brooklyn, NY |
| Dave Altizer | altize001dav | 1906 | 4/25-5/26 | Lancaster Red Roses | Tri-State League | , | |
| Dave Altizer | altize001dav | 1906 | 5/29- | 115 g. | Washington | American League | Washington, DC |
| Joseph Altman | altman001jos | 1906 | 6/22-9/3 | Spokane Indians | Northwestern League | , | |
| James Alward | 1906 | 4/26-4/28 | Portsmouth Truckers | Virginia League | , | ||
| James Alward | 1906 | +5/13-7/22+ | Canton-Entre Nous | Independent | , | ||
| George Ames | 1906 | 9/3-9/15 | Evansville River Rats | Central League | , | ||
| Rex Ames | 1906 | 39 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | ||
| Rex Ames | 1906 | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | |||
| Doc Amole | amole-001doc | 1906 | 5/3-5/10 | Johnstown Johnnies | Tri-State League | , | |
| Charles Amsler | 1906 | +6/16+ | Slippery Rock College | , | |||
| George Amy | 1906 | 16 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Charles Anderberg | anderb001cha | 1906 | 5/24-6/11 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| William Anderberg | 1906 | 5/25-5/29 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Anderson | 1906 | 6/10 | Denison | South Texas League | , | ||
| Andy Anderson | anders003art | 1906 | 4/14-6/12 | Little Rock Travelers | Southern Association | , | |
| Andy Anderson | anders003art | 1906 | 6/20 | Shreveport Pirates | Southern Association | , | |
| Fred Anderson | anders008joh | 1906 | Davidson College | College | , | ||
| Fred Anderson | anders008joh | 1906 | 6/19-7/16 | Darlington | South Carolina League | , | |
| Goat Anderson | anders003edw | 1906 | 4/26-9/23 | South Bend Greens | Central League | , | |
| J. W. Anderson | anders001ant | 1906 | 4/28-8/7 | South McAlester Miners | South Central League | , | |
| John Anderson | anders010joh | 1906 | 151 g. | Washington | American League | Washington, DC | |
| Ollie Anderson | anders001oll | 1906 | Umpire | Ohio-Pennsylvania League | , | ||
| Spike Anderson | anders003a-- | 1906 | U. Minnesota | College | , | ||
| Spike Anderson | anders003a-- | 1906 | 5/19-8/22 | Winnipeg Maroons | Northern-Copper Country League | , | |
| William Anderson | anders003wil | 1906 | 138 g. | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Wingo Anderson | anders001win | 1906 | 4/30 | Cleburne Railroaders | Texas League | , | |
| Wingo Anderson | anders001win | 1906 | 8/29-8/31 | Cleburne Railroaders | Texas League | , | |
| George Andreas | andrea002geo | 1906 | 4/18-5/7 | Milwaukee Brewers | American Association | , | |
| George Andreas | andrea002geo | 1906 | 5/10-9/30 | Des Moines Champs | Western League | , | |
| Andrews | 1906 | +8/25+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Charles Andrews | andrew001cha | 1906 | 4/29-7/31+ | Wheeling Stogies | Central League | , | |
| Charles Andrews | andrew001cha | 1906 | 8/10-9/23 | Terre Haute Hottentots | Central League | , | |
| Doc Andrews | andrew001jay | 1906 | 5/4-9/23 | Topeka White Sox | Western Association | , | |
| Glenn Andrews | andrew001gle | 1906 | 5/15-9/23 | Kalamazoo White Sox | Southern Michigan League | , | |
| Ernest Anklam | anklam001ern | 1906 | 109 g. | Waterloo Microbes | Iowa League | , | |
| Bill Annis | annis-001wil | 1906 | 125 g. | Burlington Pathfinders | Iowa League | , | |
| Anthony | 1906 | +5/15+ | Albany | Georgia State League | , | ||
| Albert Anthony | anthon001alb | 1906 | Rich.-Brownies | Independent | , | ||
| John Anthony | anthon002joh | 1906 | 4/26-7/4 | Richmond Colts | Virginia League | , | |
| John Anthony | anthon002joh | 1906 | 7/9-9/8 | Portsmouth Truckers | Virginia League | , | |
| Samuel Apperious | apperi001wil | 1906 | 4/11-9/15 | Montgomery Senators | Southern Association | , | |
| Fred Applegate | appleg002fre | 1906 | 4/26-5/31 | Williamsport Millionaires | Tri-State League | , | |
| Fred Applegate | appleg002fre | 1906 | 6/28-9/3 | Johnstown Johnnies | Tri-State League | , | |
| Cleveland Arbogast | arboga001cle | 1906 | 4/27-5/2 | Cleburne Railroaders | Texas League | , | |
| Cleveland Arbogast | arboga001cle | 1906 | 5/5-6/22 | Temple Boll Weevils | Texas League | , | |
| Cleveland Arbogast | arboga001cle | 1906 | Amerillo Tx | Independent | , | ||
| Cleveland Arbogast | arboga001cle | 1906 | 7/14-9/2 | Cleburne Railroaders | Texas League | , | |
| Archer | 1906 | 5/4 | Wheeling Stogies | Central League | , | ||
| Jimmy Archer | archer001jam | 1906 | 4/11-9/14 | Atlanta Crackers | Southern Association | , | |
| Ardy | 1906 | 6/11-6/12 | Darlington | South Carolina League | , | ||
| Frank Arellanes | arella001fra | 1906 | San Jose Prune Pickers | California League | , | ||
| Frank Arellanes | arella001fra | 1906 | Fresno Raisin Eaters | Pacific Coast League | , | ||
| Charlie Armbruster | armbru001cha | 1906 | 72 g. | Boston | American League | Boston, MA | |
| Harry Armbruster | armbru001har | 1906 | 4/26-4/28 | Newark Sailors | Eastern League | , | |
| Harry Armbruster | armbru001har | 1906 | 4/30-10/3 | Philadelphia | American League | Philadelphia, PA | |
| Bill Armour | armour001wil | 1906 | Detroit | American League | Detroit, MI | ||
| Armstrong | 1906 | 6/11 | Fort Scott Giants | Kansas State League | , | ||
| Alec Armstrong | 1906 | Mahon & Roths | Clevland City League | , | |||
| Antonio Armstrong | 1906 | 5/3-6/14 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Antonio Armstrong | 1906 | 6/16-6/28 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Antonio Armstrong | 1906 | 6/30- | 9 g. | Independence Coyotes | Kansas State League | , | |
| Cecil Armstrong | armstr001cec | 1906 | 4/26-5/10 | Johnstown Johnnies | Tri-State League | , | |
| Cecil Armstrong | armstr001cec | 1906 | 5/19-9/26 | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| Howard Armstrong | 1906 | 20 g. | Burlington Pathfinders | Iowa League | , | ||
| Lou Armstrong | armstr001lou | 1906 | 5/4-9/23 | Joplin Miners | Western Association | , | |
| Robert Armstrong | 1906 | 93 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | ||
| Harry Arndt | arndt-001har | 1906 | 69 g. | St. Louis | National League | St. Louis, MO | |
| Roy Arnold | 1906 | 8/20-9/19 | Oklahoma City Mets | Western Association | , | ||
| Ed Ashenbach | ashenb001edw | 1906 | 5/13,9/2 | Scranton Miners | New York State League | , | |
| Charles Asher | asher-001edw | 1906 | , | ||||
| James Asher | asher-001edw | 1906 | 5/4 | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| James Asher | asher-001edw | 1906 | 5/24 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| James Asher | asher-001edw | 1906 | 5/29-7/18 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| James Asher | asher-001edw | 1906 | 14 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| John Ashley | ashley001joh | 1906 | 5/4-9/23 | Leavenworth Old Soldiers | Western Association | , | |
| James Ashmore | ashmor001j-- | 1906 | Milliken Univ. | College | , | ||
| James Ashmore | ashmor001j-- | 1906 | +7/2-8/23+ | Montpelier-Barre | Northern Independent | , | |
| Jack Ashton | ashton001joh | 1906 | 4/16-5/5 | Columbia Gamecocks | South Atlantic League | , | |
| Jack Ashton | ashton001joh | 1906 | 6/22-6/30 | Sumter Game Cocks | South Carolina League | , | |
| Jack Ashton | ashton001joh | 1906 | 7/4-9/3 | Columbia Gamecocks | South Atlantic League | , | |
| Tom Asmussen | asmuss001tho | 1906 | Springfield Babes | Central League | , | ||
| Tom Asmussen | asmuss001tho | 1906 | 39 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | |
| Charlie Atherton | athert001cha | 1906 | 4/25-5/15 | Johnstown Johnnies | Tri-State League | , | |
| Charlie Atherton | athert001cha | 1906 | 5/28-6/2 | Toronto Maple Leafs | Eastern League | , | |
| Charlie Atherton | athert001cha | 1906 | 6/8-9/16 | Indianapolis Indians | American Association | , | |
| Tommy Atkins | atkins001fra | 1906 | Painesville HS | High School | , | ||
| Tommy Atkins | atkins001fra | 1906 | +7/19+ | 7 g. | Akron Rubbernecks | Ohio-Pennsylvania League | , |
| Charles Atkinson | 1906 | 9/21- | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Floyd Atkinson | atkins001flo | 1906 | 5/12 | Waco Navigators | Texas League | , | |
| Jake Atz | atz---001joh | 1906 | 35 g. | Los Angeles Angels | Pacific Coast League | , | |
| Jake Atz | atz---001joh | 1906 | 7/1-9/15 | New Orleans Pelicans | Southern Association | , | |
| Aubrey | 1906 | 5/11 | Cordele | Georgia State League | , | ||
| Harry Aubrey | aubrey001har | 1906 | 5/10-9/23 | Syracuse Stars | New York State League | , | |
| Bill Austin | austin001wil | 1906 | 4/28-9/8 | New Bedford Whalers | New England League | , | |
| Jimmy Austin | austin002jam | 1906 | 4/27-9/25 | Dayton Veterans | Central League | , | |
| Chick Autry | autry-001wil | 1906 | 5/4-8/13 | Webb City Goldbugs | Western Association | , | |
| Chick Autry | autry-001wil | 1906 | 8/15-10/1 | Omaha Rourkes | Western League | , | |
| Clifford Averett | 1906 | 5/7-6/8+ | Americus Pallbearers | Georgia State League | , | ||
| Clifford Averett | 1906 | Columbus GA | Independent | , | |||
| Jack Averill | averil000jac | 1906 | 5/1-5/15 | Haverhill Hustlers | New England League | , | |
| Aaron Ayers | 1906 | 7/6-7/18 | Omaha Rourkes | Western League | , | ||
| Aaron Ayers | 1906 | +7/21-7/25+ | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | ||
| Ayott | 1906 | +9/18-9/20 | Dayton Veterans | Central League | , | ||
| Fred Ayre | 1906 | no g. | Utica Pent-Ups | New York State League | , | ||
| Charlie Babb | babb--001cha | 1906 | 4/12-9/15 | Memphis Egyptians | Southern Association | , | |
| Charlie Babb | babb--001cha | 1906 | 9/20 | South Bend Greens | Central League | , | |
| George Babbitt | babbit002geo | 1906 | 5/16-6/17 | Tacoma Tigers | Northwestern League | , | |
| S. I. Babcock | 1906 | +5/13+ | Chic.-SouthSide | Chicago City League | , | ||
| S. I. Babcock | 1906 | 6/28-8/12 | Coffeyville Bricks | Kansas State League | , | ||
| Bache | 1906 | 6/29 | Muskogee Indians | South Central League | , | ||
| Alex Backof | backof001ale | 1906 | 4/26- | 149 g. | Grand Rapids Wolverines | Central League | , |
| George Backus | backus001mel | 1906 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | ||
| George Backus | backus001mel | 1906 | 31 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | |
| Mat Bacom | bascom001m-- | 1906 | +5/10+ | 9 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , |
| Mat Bacom | bascom001m-- | 1906 | Monmouth IL | Independent | , | ||
| Mat Bacom | bascom001m-- | 1906 | Kewanee IL | Independent | , | ||
| Bacon | 1906 | +5/31-6/2+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Bacon | 1906 | Sacramento Cordovas | California League | , | |||
| Frederick Badel | badel-001fre | 1906 | 4/26-7/5 | Buffalo Bisons | Eastern League | , | |
| Frederick Badel | badel-001fre | 1906 | 7/11-9/16 | Johnstown Johnnies | Tri-State League | , | |
| Art Bader | bader-001art | 1906 | 6/18- | 104 g. | Pueblo Indians | Western League | , |
| Oliver Badgley | 1906 | Trinity College | College | , | |||
| Oliver Badgley | 1906 | 6/13-9/8 | Hartford Senators | Connecticut State League | , | ||
| Will Baer | baer--001wil | 1906 | Hibbing MN | Independent | , | ||
| Charles Baerwald | baerwa001cha | 1906 | 4/28-7/20 | Holyoke Paperweights | Connecticut State League | , | |
| Charles Baerwald | baerwa001cha | 1906 | 9/6-10/1 | Sioux City Packers | Western League | , | |
| Rudy Baerwald | baerwa001rud | 1906 | 5/4-9/21 | Joplin Miners | Western Association | , | |
| Jesse Baggett | 1906 | Wash.- | Marquette | , | |||
| Jesse Baggett | 1906 | 7/24-7/28 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Jack Bagley | bagley001joh | 1906 | 4/26-6/12 | Holyoke Paperweights | Connecticut State League | , | |
| Jack Bagley | bagley001joh | 1906 | +7/2-8/2+ | Rutland | Northern Independent League | , | |
| Emory Bagwell | bagwel001eme | 1906 | 4/17-4/30 | Macon Brigands | South Atlantic League | , | |
| Emory Bagwell | bagwel001eme | 1906 | 5/25-6/28+ | Valdosta Stars | Georgia State League | , | |
| Bailey | 1906 | 30 g. | Oklahoma City Mets | Western Association | , | ||
| Bailey | 1906 | +6/7+ | Fargo | Northern-Copper Country League | , | ||
| Bailey | 1906 | Wofford? | College | , | |||
| Bailey | 1906 | 6/11-7/21 | Darlington | South Carolina League | , | ||
| Arch Bailey | 1906 | +7/19-8/11+ | Umpire | Texas League | , | ||
| Bill Bailey | bailey003wil | 1906 | 28 g. | Beaumont Oilers | South Texas League | , | |
| Bill Bailey | bailey003wil | 1906 | Crowley LA | Independent | , | ||
| Bill Bailey | bailey003wil | 1906 | Austin Senators | South Texas League | , | ||
| Harry Bailey | 1906 | 4/28-6/21 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Harry Bailey | 1906 | 7/5-9/25 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Harvey Bailey | bailey003har | 1906 | 5/1-9/25 | Mansfield Giants | Ohio-Pennsylvania League | , | |
| Murphy Bailey | bailey001mur | 1906 | 5/24-9/15 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Russell Bailey | 1906 | 112 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Spide Bailey | 1906 | Kansas University | College | , | |||
| Spide Bailey | 1906 | Oklahoma City Mets | Western Association | , | |||
| Baird | 1906 | 8/13 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Charles Baird | 1906 | Marquette KS | Independent | , | |||
| Harry Baird | 1906 | Marquette KS | Independent | , | |||
| James Baird | baird-001jam | 1906 | 114 g. | Jackson Senators | Cotton States League | , | |
| Ernie Baker | baker-002ear | 1906 | 5/7-5/23 | Sioux City Packers | Western League | , | |
| Ernie Baker | baker-002ear | 1906 | 6/6-8/28 | Jacksonville Jays | South Atlantic League | , | |
| Home Run Baker | baker-004joh | 1906 | Balt.-SparrowsPt | Independent | , | ||
| Howard Baker | baker-003how | 1906 | 4/30-6/23 | Waterbury Authors | Connecticut State League | , | |
| Howard Baker | baker-003how | 1906 | 6/29-9/3 | Holyoke Paperweights | Connecticut State League | , | |
| Jesse Baker | 1906 | Toronto Maple Leafs | Eastern League | , | |||
| John Baker | baker-001joh | 1906 | 5/6-9/11 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Louis Baker | baker-001lou | 1906 | 118 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | |
| Roy Baker | baker-003roy | 1906 | 4/28-8/2 | Grays Harbor Lumbermen | Northwestern League | , | |
| Clarence Bakule | 1906 | 6/26-7/20 | Shawnee Blues | South Central League | , | ||
| Orson Baldwin | baldwi001ors | 1906 | 12 g. | Sharon Steels | Ohio-Pennsylvania League | , | |
| Monte Bales | 1906 | 7 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Ball | 1906 | 6/23-8/25 | Ottawa | Northern Independent League | , | ||
| Harry Ball | ball--003har | 1906 | 4/26-9/8 | Norwich Reds | Connecticut State League | , | |
| Jim Ball | ball--002jam | 1906 | +5/15-5/29+ | Montpelier Seminary | College | , | |
| Neal Ball | ball--001cor | 1906 | 5/3-9/16 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Jim Ballantyne | ballen001jam | 1906 | 5/26-6/8 | Savannah Indians | South Atlantic League | , | |
| L. E. Ballew | ballew001l-- | 1906 | 6/16-6/19 | Temple Boll Weevils | Texas League | , | |
| George Balliett | ballie001geo | 1906 | 5/3-5/28 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| George Balliett | ballie001geo | 1906 | 6/19-9/3 | Lake Linden Sandy Cities | Northern-Copper Country League | , | |
| George Balliett | ballie001geo | 1906 | 9/9-9/16 | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| G. H. Ballinger | 1906 | Battle Creek Crickets | Southern Michigan League | , | |||
| John Bambrough | 1906 | 10 g. | Meridian Ribboners | Cotton States League | , | ||
| Joseph Bammert | bammer001joh | 1906 | 4/16-4/26 | Charleston Sea Gulls | South Atlantic League | , | |
| Joseph Bammert | bammer001joh | 1906 | 5/1-9/3 | Macon Brigands | South Atlantic League | , | |
| Alex Bandelin | bandel001ale | 1906 | 10 g. | Wausau Lumberjacks | Wisconsin State League | , | |
| Oscar Bandelin | bandel002osc | 1906 | 4/28-9/3 | Butte Miners | Northwestern League | , | |
| Robert Bandy | 1906 | 4/28-7/14 | Fort Smith Razorbacks | South Central League | , | ||
| Cecil Bankhead | bankhe001cec | 1906 | 5/4-6/27 | Wichita Jobbers | Western Association | , | |
| Cecil Bankhead | bankhe001cec | 1906 | 6/30-8/9,9/21 | Joplin Miners | Western Association | , | |
| Alexander Bannister | 1906 | Seneca Falls | Empire State League | , | |||
| Alexander Bannister | 1906 | Auburn | Empire State League | , | |||
| Bill Bannon | bannon001wil | 1906 | , | ||||
| George Bannon | bannon001geo | 1906 | 4/26-8/18 | Montreal Royals | Eastern League | , | |
| George Bannon | bannon001geo | 1906 | 8/31-9/21 | Toronto Maple Leafs | Eastern League | , | |
| Jimmy Bannon | bannon001jam | 1906 | 4/26-8/16 | Montreal Royals | Eastern League | , | |
| Jimmy Bannon | bannon001jam | 1906 | 8/24-9/22 | Rochester Bronchos | Eastern League | , | |
| Tom Bannon | bannon001tho | 1906 | 4/27-9/8 | Lynn Shoemakers | New England League | , | |
| Tom Bannon | 1906 | 4/28-5/6 | Umpire | Ohio-Pennsylvania League | , | ||
| Alexander Bannwart | 1906 | 7/7-9/6 | Lowell Tigers | New England League | , | ||
| Ernie Bantz | bantz-001e-- | 1906 | Fort Dodge Gypsumites | Iowa League | , | ||
| William Barbeau | barbea001wil | 1906 | 42 g. | Cleveland | American League | Cleveland, OH | |
| Billy Barber | barber001wil | 1906 | 5/3-5/8+ | Saginaw | Interstate Association | , | |
| Billy Barber | barber001wil | 1906 | +8/8+ | Flint MI | Independent | , | |
| Billy Barber | barber001wil | 1906 | +9/7-9/23 | Battle Creek Crickets | Southern Michigan League | , | |
| Dave Barber | barber001dav | 1906 | 4/27-7/31 | Johnstown Johnnies | Tri-State League | , | |
| Dave Barber | barber001dav | 1906 | 8/11-8/29 | Utica Pent-Ups | New York State League | , | |
| E. H. Barber | 1906 | +5/26-7/4 | Valdosta Stars | Georgia State League | , | ||
| E. H. Barber | 1906 | 7/24-8/10 | Manning | South Carolina League | , | ||
| E. H. Barber | 1906 | 8/15 | Darlington | South Carolina League | , | ||
| Frank Barber | barber001fra | 1906 | 5/2 | Montreal Royals | Eastern League | , | |
| Frank Barberich | barber003fra | 1906 | 5/1-9/8 | Lawrence Colts | New England League | , | |
| Barbour | 1906 | 6/6 | Hartford Senators | Connecticut State League | , | ||
| Louis Barbour | barbou001lou | 1906 | 138 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | |
| George Barclay | barcla001geo | 1906 | 5/1-7/25 | Rochester Bronchos | Eastern League | , | |
| George Barclay | barcla001geo | 1906 | 9/3-9/8 | Lynn Shoemakers | New England League | , | |
| John Bare | bare--001joh | 1906 | 4/29-9/3 | Butte Miners | Northwestern League | , | |
| Barfield | 1906 | Florence SC | Independent | , | |||
| Barfield | 1906 | 7/10 | Darlington | South Carolina League | , | ||
| Cy Barger | barger001ero | 1906 | 4/26-8/23 | Lancaster Red Roses | Tri-State League | , | |
| Cy Barger | barger001ero | 1906 | 8/30- | 2 g. | New York | American League | New York, NY |
| Cy Barger | barger001ero | 1906 | 9/8-9/22 | Montreal Royals | Eastern League | , | |
| Harry Barker | barker001har | 1906 | 5/12-9/15 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| G. Barksdale | 1906-07 | Clemson College | College | , | |||
| G. Barksdale | 1906 | 6/11-7/13 | Sumter Game Cocks | South Carolina League | , | ||
| Miles Barlow | barlow001mil | 1906 | 121 g. | Freeport Pretzels | Wisconsin State League | , | |
| Harry Barndollar | barndo001har | 1906 | 5/12- 8/12 | Coffeyville Bricks | Kansas State League | , | |
| Harry Barndollar | barndo001har | 1906 | +8/20-9/9 | Independence Coyotes | Kansas State League | , | |
| Barnes | 1906 | Plattsburgh | Northern Independent League | , | |||
| D. N. Barnes | 1906 | 5/5 | Americus Pallbearers | Georgia State League | , | ||
| Jack Barnett | barnet003joh | 1906 | 6/3-7/5 | Albany Senators | New York State League | , | |
| Jack Barnett | barnet003joh | 1906 | 9/2-9/22 | Wilkes-Barre Barons | New York State League | , | |
| Jack Barnett | burnet005joh | 1906 | 4/28-9/3 | Tacoma Tigers | Northwestern League | , | |
| Michael Barney | 1906 | +6/28-7/7+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Michael Barney | 1906 | +7/21-9/23 | Jackson Convicts | Southern Michigan League | , | ||
| Charles Barngrover | 1906 | Rainier Brewing | Independent | , | |||
| Charles Barngrover | 1906 | Ellinwood KS | Independent | , | |||
| Lawrence Barr | 1906 | Bell KS | Independent | , | |||
| Lawrence Barr | 1906 | 5/5-6/14 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Barrett | 1906 | 7/31 | Waco Navigators | Texas League | , | ||
| Charley Barrett | barret002cha | 1906 | Beaumont Oilers | South Texas League | , | ||
| Jimmy Barrett | barret003jam | 1906 | 5 g. | Cincinnati | National League | Cincinnati, OH | |
| Jimmy Barrett | barret003jam | 1906 | 5/22-6/11 | Dayton Veterans | Central League | , | |
| Jimmy Barrett | barret003jam | 1906 | 7/11-9/22 | Rochester Bronchos | Eastern League | , | |
| John Barrett | 1906 | 8/30-9/8 | Lowell Tigers | New England League | , | ||
| Ed Barrow | barrow001edw | 1906 | 4/26-9/23 | Toronto Maple Leafs | Eastern League | , | |
| Charles Barry | 1906 | 5/7-5/22 | Waco Navigators | Texas League | , | ||
| Charles Barry | 1906 | +5/26-7/20 | Guthrie Senators | South Central League | , | ||
| Charles Barry | 1906 | 7/25-8/7 | Fort Smith Razorbacks | South Central League | , | ||
| David Barry | barry-001dav | 1906 | Paterson Intruders | Hudson River League | , | ||
| Ed Barry | barry-001edw | 1906 | 5/19-9/3 | Houghton Giants | Northern-Copper Country League | , | |
| Ed Barry | barry-001edw | 1906 | 3 g. | Boston | American League | Boston, MA | |
| Jack Barry | barry-006joh | 1906-07 | Holy Cross | College | , | ||
| John Barry | barry-002joh | 1906 | Cincinnati | National League | Cincinnati, OH | ||
| John Barry | barry-002joh | 1906 | St. Louis | National League | St. Louis, MO | ||
| Lawrence Barry | 1906 | Geneva | Empire State League | , | |||
| Thomas Barry | barry-002tom | 1906 | Notre Dame U. | College | , | ||
| Tom Barry | barry-001tho | 1906 | no g. | Indianapolis Indians | American Association | , | |
| John Barthold | bartho001joh | 1906 | Phila.-semi-pro | Semi-professional | , | ||
| Bert Bartholomew | 1906 | 4/28-7/4+ | Fort Smith Razorbacks | South Central League | , | ||
| Charles Bartiff | 1906 | +6/27-8/28+ | Coffeyville Bricks | Kansas State League | , | ||
| Bill Bartley | bartle001wil | 1906 | 3 g. | Philadelphia | American League | Philadelphia, PA | |
| Henry Bartley | bartle001h-- | 1906 | 5/6-6/3 | Pittsburg/Vinita Champs | Kansas State League | , | |
| Henry Bartley | bartle001h-- | 1906 | 6/4-7/4 | Pittsburg/Vinita Champs | Kansas State League | , | |
| Henry Bartley | bartle001h-- | 1906 | 7/6 | Webb City Goldbugs | Western Association | , | |
| Henry Bartley | bartle001h-- | 1906 | 7/8 | Leavenworth Old Soldiers | Western Association | , | |
| Henry Bartley | bartle001h-- | 1906 | 7/19-9/3+ | Bartlesville Indians | Kansas State League | , | |
| John Bartley | bartle001joh | 1906 | 55 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | |
| John Bartley | bartle001joh | 1906 | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | ||
| Charles Bartliff | 1906 | +6/27-8/28+ | Coffeyville Bricks | Kansas State League | , | ||
| George Barto | barto-001geo | 1906 | 5/19-9/3 | Duluth White Sox | Northern-Copper Country League | , | |
| Harry Barton | barton001har | 1906 | 4/26-9/22 | Providence Grays | Eastern League | , | |
| James Barton | barton001jam | 1906 | 5/4- | 113 g. | Lincoln Ducklings | Western League | , |
| Bartwell | 1906 | +5/22+ | Marietta OH | Independent | , | ||
| Bartwell | 1906 | 5/28-5/30 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Bashore | 1906 | OK-Altus | Independent | , | |||
| Jimmy Bass | bass--001jam | 1906 | 5/1-5/21 | Roanoke Tigers | Virginia League | , | |
| Jimmy Bass | bass--001jam | 1906 | 6/26-7/7 | Manning | South Carolina League | , | |
| Jimmy Bass | bass--001jam | 1906 | Umpire | South Carolina League | , | ||
| John Bassey | bassey001joh | 1906 | 5/2- | 149 g. | Omaha Rourkes | Western League | , |
| Ward Bastian | bastia001war | 1906 | Kane Mountaineers | Interstate League | , | ||
| Fred Bateman | batema001fre | 1906 | 5/3- | Bay City | Interstate Association | , | |
| Fred Bateman | batema001fre | 1906 | 7/13-9/8 | Roanoke Tigers | Virginia League | , | |
| Quait Bateman | batema002h-- | 1906 | 4/18-9/16 | Milwaukee Brewers | American Association | , | |
| Bates | 1906 | +5/19+ | Muskogee Indians | South Central League | , | ||
| George Bates | bates-001geo | 1906 | 4/28-5/21 | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| George Bates | bates-001geo | 1906 | 8/8-9/28 | Sharon Steels | Ohio-Pennsylvania League | , | |
| James Bates | bates-001jam | 1906 | Muskogee Indians | South Central League | , | ||
| John/Jim Bates | 1906 | Nebraska Indians | Independent | , | |||
| John/Jim Bates | 1906 | 4/28-7/10 | Sharon Steels | Ohio-Pennsylvania League | , | ||
| John/Jim Bates | 1906 | 7/15 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | ||
| John/Jim Bates | 1906 | 7/17-9/29 | Umpire | Ohio-Pennsylvania League | , | ||
| Johnny Bates | bates-002joh | 1906 | 4/12- | 140 g. | Boston | National League | Boston, MA |
| Roy Bates | bates-001roy | 1906 | Muskogee Indians | South Central League | , | ||
| Edward Bauer | bauer-001edw | 1906 | 15 g. | Baton Rouge Cajuns | Cotton States League | , | |
| Edward Bauer | bauer-001edw | 1906 | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Jacob Bauer | bauer-001jac | 1906 | 5/2-6/3 | Sioux City Packers | Western League | , | |
| Jacob Bauer | bauer-001jac | 1906 | Lexington KY | Independent | , | ||
| Jacob Bauer | bauer-001jac | 1906 | 66 g. | Ottumwa Champs | Iowa League | , | |
| Charles Baum | baum--002cha | 1906 | Los Angeles Angels | Pacific Coast League | , | ||
| Charles Baum | baum--002cha | 1906 | 5/12-9/15 | Altoona Mountaineers | Tri-State League | , | |
| Manfred Baum | 1906 | Gainesville TX | Independent | , | |||
| Charles Baumgartner | 1906 | 4/25-4/28 | Greenville Hunters | Texas League | , | ||
| Don Baumhart | 1906 | +5/3+ | Hutchinson KS | Independent | , | ||
| Don Baumhart | 1906 | +4/27-5/25+ | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Don Baumhart | 1906 | Ellinwood KS | Independent | , | |||
| Don Baumhart | 1906 | +9/6+ | Mt. Hope KS | Independent | , | ||
| Don Baumhart | 1906 | 9/14 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| Moose Baxter | baxter001joh | 1906 | 4/28-9/3 | Butte Miners | Northwestern League | , | |
| Will Baxter | 1906 | Yazoo City | , | ||||
| Bayard | 1906 | 5/31-6/30 | Waco Navigators | Texas League | , | ||
| Dick Bayless | bayles001har | 1906 | 5/4-9/23 | Joplin Miners | Western Association | , | |
| Harry Bayliss | 1906 | Penn Yan | Empire State League | , | |||
| Alva Bayne | bayne-001alv | 1906 | 5/11-9/19 | Binghamton Bingoes | New York State League | , | |
| Harry Beach | 1906 | Amherst College | College | , | |||
| Harry Beach | 1906 | Burlington | Northern Independent League | , | |||
| Beadles | 1906 | 5/1-7/19 | Guthrie Senators | South Central League | , | ||
| Max? Beals | 1906 | 9/17-9/19 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| Joe Bean | bean--001jos | 1906 | 4/26-9/12 | Jersey City Skeeters | Eastern League | , | |
| Jimmy Beard | beard-001jam | 1906 | 4/27- | Manchester Textiles | New England League | , | |
| Jimmy Beard | beard-001jam | 1906 | Haverhill Hustlers | New England League | , | ||
| Jimmy Beard | beard-001jam | 1906 | -8/17 | Lawrence Colts | New England League | , | |
| Jimmy Beard | beard-001jam | 1906 | Orwigsburg PA | Independent | , | ||
| John Beard | 1906 | 5/17-5/18+ | Tecumseh | Southern Michigan League | , | ||
| John Beard | 1906 | +8/1+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| John Beard | 1906 | +7/24-9/7+ | Coldwater MI | Independent | , | ||
| Charles Beasley | 1906 | 5/17-7/31+ | Tecumseh | Southern Michigan League | , | ||
| Charles Beasley | 1906 | +9/21+ | Mount Clemens Bathers | Southern Michigan League | , | ||
| Frank Beatty | 1906 | Meadville PA | Erie Railroad | , | |||
| Frank Beatty | 1906 | 8/29,9/29 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | ||
| Frank Beaumont | beaumo001fra | 1906 | 4/25-9/8 | Bridgeport Orators | Connecticut State League | , | |
| Ernest Bechtel | 1906 | 6/4-7/11 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Ernest Bechtel | 1906 | 8/7-8/17 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Erve Beck | beck--001erv | 1906 | 4/12-7/10 | New Orleans Pelicans | Southern Association | , | |
| Erve Beck | beck--001erv | 1906 | 7/14-7/28 | Nashville Volunteers | Southern Association | , | |
| Erve Beck | beck--001erv | 1906 | 8/7-9/3 | Augusta Tourists | South Atlantic League | , | |
| Frederick Beck | beck--002fre | 1906 | +5/4-9/4+ | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Lawrence Beckel | beckel001law | 1906 | 5/14-6/4 | Utica Pent-Ups | New York State League | , | |
| Lawrence Beckel | beckel001law | 1906 | 8 g. | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Lawrence Beckel | beckel001law | 1906 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Lawrence Beckel | beckel001law | 1906 | 8/13 | Springfield Babes | Central League | , | |
| Lawrence Beckel | beckel001law | 1906 | 8/15 | Evansville River Rats | Central League | , | |
| Lawrence Beckel | beckel001law | 1906 | 8/31 | Springfield Babes | Central League | , | |
| Henry Beckendorf | becken001hen | 1906 | 5/9-5/25 | Providence Grays | Eastern League | , | |
| Henry Beckendorf | becken001hen | 1906 | 6/17-6/28 | Newark Sailors | Eastern League | , | |
| Henry Beckendorf | becken001hen | 1906 | Kingston Colonials | Hudson River League | , | ||
| Becker | 1906 | 6/7 | Nashville Volunteers | Southern Association | , | ||
| Beals Becker | becker001dav | 1906 | 4/16-4/21 | Little Rock Travelers | Southern Association | , | |
| Beals Becker | becker001dav | 1906 | 5/6-9/23 | Wichita Jobbers | Western Association | , | |
| Jesse Becker | 1906 | 5/19-9/3 | Lake Linden Sandy Cities | Northern-Copper Country League | , | ||
| Karl Becker | 1906 | Osage City | Independent | , | |||
| Karl Becker | 1906 | Herington | Independent | , | |||
| Beckett | 1906 | 5/10 | Tacoma Tigers | Northwestern League | , | ||
| Beckett | 1906 | 5/16-5/30 | Spokane Indians | Northwestern League | , | ||
| Walter Beckett | becker016--- | 1906 | 5/26 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | |
| Walter Beckett | becker016--- | 1906 | +8/12+ | Laurel MD | Cumberland Valley | , | |
| Walter Beckett | becker016--- | 1906 | Washington | American League | Washington, DC | ||
| Beckham | 1906 | 6/19 | Waco Navigators | Texas League | , | ||
| Jake Beckley | beckle001jac | 1906 | 87 g. | St. Louis | National League | St. Louis, MO | |
| Frank Bedur | bedur-001ott | 1906 | Fort Wayne | Interstate Association | , | ||
| Frank Bedur | bedur-001ott | 1906 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Frank Bedur | bedur-001ott | 1906 | 14 g. | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Beebe | 1906 | 7/9-7/11 | Worcester Busters | New England League | , | ||
| Fred Beebe | beebe-001fre | 1906 | 4/17- | 14 g. | Chicago | National League | Chicago, IL |
| Fred Beebe | beebe-001fre | 1906 | 20 g. | St. Louis | National League | St. Louis, MO | |
| Roy Beecher | beeche001ler | 1906 | no g. | Terre Haute Hottentots | Central League | , | |
| Roy Beecher | beeche001ler | 1906 | 35 g. | Houghton Giants | Northern-Copper Country League | , | |
| Roy Beecher | beeche001ler | 1906 | 9/7 | Minneapolis Millers | American Association | , | |
| John Beedles | beedle002joh | 1906 | no g. | Oklahoma City Mets | Western Association | , | |
| John Beedles | beedle002joh | 1906 | 5/1-5/22 | Guthrie Senators | South Central League | , | |
| John Beedles | beedle002joh | 1906 | 7/6-7/20 | Guthrie Senators | South Central League | , | |
| Jesse Beeker | 1906 | Lake Linden Sandy Cities | Northern-Copper Country League | , | |||
| William Beeker | beeker001wil | 1906 | 4/15-9/11 | Shreveport Pirates | Southern Association | , | |
| Thomas Behan | 1906 | 64 g. | Gulfport Crabs | Cotton States League | , | ||
| Thomas Behan | 1906 | Baton Rouge Cajuns | Cotton States League | , | |||
| Thomas Behan | 1906 | Jackson Senators | Cotton States League | , | |||
| James Beisel | 1906 | 6/12-6/16 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| James Beisel | 1906 | 9/7 | Providence Grays | Eastern League | , | ||
| Hugh Beiser | 1906 | U. South Carolina | College | , | |||
| Hugh Beiser | 1906 | 6/11-6/27 | Orangeburg | South Carolina League | , | ||
| Belanger | 1906 | 7/5-9/16 | Wausau Lumberjacks | Wisconsin State League | , | ||
| George Belanger | 1906 | +9/9-9/20+ | Battle Creek Crickets | Southern Michigan League | , | ||
| George Belcher | 1906 | no g. | Richmond Colts | Virginia League | , | ||
| Billy Belden | belden001wil | 1906 | 4/27-8/24 | Springfield Babes | Central League | , | |
| Ira Belden | belden002ira | 1906 | 5/2- | 144 g. | Denver Grizzlies | Western League | , |
| Bell | 1906 | 9/5 | St. Paul Saints | American Association | , | ||
| Bob Bell | 1906 | 6/19-7/7 | Umpire | Ohio-Pennsylvania League | , | ||
| George Bell | bell--002geo | 1906 | 4/26-9/6 | Altoona Mountaineers | Tri-State League | , | |
| Lynn Bell | 1906 | 5/3-6/10+ | Saginaw | Interstate Association | , | ||
| Lynn Bell | 1906 | Jackson Convicts | Southern Michigan League | , | |||
| Lynn Bell | 1906 | 7/18-9/23 | Saginaw | Southern Michigan League | , | ||
| Theron Bell | bell--001t-- | 1906 | 4/24-5/4 | Little Rock Travelers | Southern Association | , | |
| Theron Bell | bell--001t-- | 1906 | 102 g. | Vicksburg Hill Billies | Cotton States League | , | |
| Tug Bell | 1906 | 9/14-9/15 | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Bellinger | 1906 | +9/8-9/23+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Frank Belt | belt--001fra | 1906 | 122 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | |
| Harry Belt | belt--001hic | 1906 | 7 g. | Seattle Siwashes | Pacific Coast League | , | |
| Harry Belt | belt--001hic | 1906 | 6/15-8/1 | Spokane Indians | Northwestern League | , | |
| Charles Bemiss | bemis-001cha | 1906 | 4/15 | Little Rock Travelers | Southern Association | , | |
| Andrew Benbow | benbow001j-- | 1906 | 4/26-7/17 | Norfolk Tars | Virginia League | , | |
| Andrew Benbow | benbow001j-- | 1906 | 7/19 | Portsmouth Truckers | Virginia League | , | |
| Andrew Benbow | benbow001j-- | 1906 | 8/9-9/8 | Roanoke Tigers | Virginia League | , | |
| William Benbow | 1906 | 5/24-5/29 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| Charles Bender | bender001cha | 1906 | Philadelphia | American League | Philadelphia, PA | ||
| John Bender | bender001joh | 1906 | 5/2- | Omaha Rourkes | Western League | , | |
| John Bender | bender001joh | 1906 | Wash. State U. | College | , | ||
| John Bender | bender002joh | 1906 | 4/16-6/2 | Charleston Sea Gulls | South Atlantic League | , | |
| John Bender | bender002joh | 1906 | 6/18-9/3 | Augusta Tourists | South Atlantic League | , | |
| Benjamin | 1906 | 6/23-6/29 | Waco Navigators | Texas League | , | ||
| William Benke | benke-000wil | 1906 | 5/22-9/11+ | Mount Clemens Bathers | Southern Michigan League | , | |
| Bennett | 1906 | 6/11 | Georgetown | South Carolina League | , | ||
| Bennett | 1906 | +6/15-6/17+ | Shawnee Blues | South Central League | , | ||
| Ben Bennett | bennet002ben | 1906 | 5/1-6/6 | Guthrie Senators | South Central League | , | |
| Ben Bennett | bennet002ben | 1906 | 6/10-8/7 | Fort Smith Razorbacks | South Central League | , | |
| Fred Bennett | bennet002fre | 1906 | 30 g. | Fort Dodge Gypsumites | Iowa League | , | |
| Fred Bennett | bennet002fre | 1906 | 12 g. | Boone/Clinton Miners | Iowa League | , | |
| Michael Bennett | bennet001m-- | 1906 | Mercersburg Acad | Academy | , | ||
| Michael Bennett | bennet001m-- | 1906 | 5/29-9/15 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| Pug Bennett | bennet001jus | 1906 | St. Louis | National League | St. Louis, MO | ||
| Simon Bennett | bennet001si- | 1906 | 5/3-6/22 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Simon Bennett | bennet001si- | 1906 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | ||
| Walter Bennett | bennet002wal | 1906 | New Haven Blues | Connecticut State League | , | ||
| Bennicker | 1906 | 7/17- | Pueblo Indians | Western League | , | ||
| John Benny | benny-001joh | 1906 | 4/26-9/8 | Danville Red Sox | Virginia League | , | |
| Elmer Bensen | benson001elm | 1906 | 129 g. | Oskaloosa Quakers | Iowa League | , | |
| Louis Bensley | 1906 | +5/18-6/10+ | Saginaw | Interstate Association | , | ||
| Louis Bensley | 1906 | +6/20-9/23 | Kalamazoo White Sox | Southern Michigan League | , | ||
| Ross Benson | 1906 | no g. | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| William Bentley | bentle001wil | 1906 | 4/27-9/8 | Lynchburg Shoemakers | Virginia League | , | |
| Bentz | 1906 | 7/24-7/26 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Heinie Berger | berger001cha | 1906 | 4/18-9/16 | Columbus Senators | American Association | , | |
| James Berger | berger001jam | 1906 | , | ||||
| Peter Bergheimer | 1906 | Monessen | MonoVal | , | |||
| Frederick Bergman | 1906 | 58 g. | Los Angeles Angels | Pacific Coast League | , | ||
| Curt Bernard | bernar001cur | 1906 | 170 g. | Los Angeles Angels | Pacific Coast League | , | |
| Bill Bernhard | bernha001wil | 1906 | 31 g. | Cleveland | American League | Cleveland, OH | |
| Palmer Bernston | 1906 | 26 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Palmer Bernston | 1906 | Oshkosh Indians | Wisconsin State League | , | |||
| Palmer Bernston | 1906 | +8/11-9/3 | Lake Linden Sandy Cities | Northern-Copper Country League | , | ||
| Archibald Bero | bero--001arc | 1906 | 4/25-9/3 | Waco Navigators | Texas League | , | |
| Archibald Bero | bero--001arc | 1906 | 9/7-9/15 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Edward Berrigan | berrig001ed- | 1906 | +6/16+ | Waterloo Microbes | Iowa League | , | |
| Berry | 1906 | 7/6 | Webb City Goldbugs | Western Association | , | ||
| Claude Berry | berry-001cla | 1906 | 5/3-9/16 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Claude Berry | berry-001cla | 1906 | 10 g. | Philadelphia | American League | Philadelphia, PA | |
| Harry Berry | berry-002har | 1906 | 4/26-5/26 | Fort Worth Panthers | Texas League | , | |
| Harry Berry | berry-002har | 1906 | 6/12-9/1 | Savannah Indians | South Atlantic League | , | |
| Hodge Berry | berry-000hod | 1906 | 4/28-6/5 | Umpire | Ohio-Pennsylvania League | , | |
| Hodge Berry | berry-000hod | 1906 | 7/1-7/5 | Umpire | Ohio-Pennsylvania League | , | |
| Joe Berry | berry-001jos | 1906 | Camden NJ | Independent | , | ||
| Bob Berryhill | berryh001rob | 1906 | 35 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | |
| Bob Berryhill | berryh001rob | 1906 | 31 g. | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Harry Berte | berte-001har | 1906 | 128 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | |
| James Bertrand | 1906 | 6/12-7/27 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| James Bertrand | 1906 | 7/28-7/31 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| James Bertrand | 1906 | +8/4+ | Balt.-Stars | Independent | , | ||
| James Bertrand | 1906 | 8/17-9/15 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Bertwell | 1906 | 5/28-5/30 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| James Bertwhistle | bertwh001jam | 1906 | 90 g. | Bridgeport Orators | Connecticut State League | , | |
| Bob Bescher | besche001rob | 1906 | Lima | Interstate Association | , | ||
| Bob Bescher | besche001rob | 1906 | +6/11-9/25 | Dayton Veterans | Central League | , | |
| Frank Betcher | betche001fra | 1906 | Bridgeton NJ | Independent | , | ||
| George Betscher | 1906 | no g. | Richmond Colts | Virginia League | , | ||
| Fred Betts | betts-001fre | 1906 | 5/10-5/19 | Scranton Miners | New York State League | , | |
| Fred Betts | betts-001fre | 1906 | 5/23-9/23 | Albany Senators | New York State League | , | |
| Harry Betts | betts-002har | 1906 | Oakland | , | |||
| Harry Betts | betts-002har | 1906 | 8/4- | 5 g. | Jackson Senators | Cotton States League | , |
| Carlton Beusse | beusse001car | 1906 | 5/3-7/6 | Waycross Machinists | Georgia State League | , | |
| Carlton Beusse | beusse001car | 1906 | 7/7-9/3 | Jacksonville Jays | South Atlantic League | , | |
| Fred Beusse | 1906 | +5/28+ | Waycross Machinists | Georgia State League | , | ||
| Fred Beusse | 1906 | 7/9-7/20 | Manning | South Carolina League | , | ||
| Fred Beusse | 1906 | 7/21 | Charleston Sea Gulls | South Atlantic League | , | ||
| Bevan | 1906 | +6/1+ | Jacksonville Jays | South Atlantic League | , | ||
| Monte Beville | bevill001hen | 1906 | 4/18-9/12 | Milwaukee Brewers | American Association | , | |
| Joseph Bewer | bewer-001jos | 1906 | 121 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Ed Biecher | bieche001ed- | 1906 | 4/25-6/14 | Altoona Mountaineers | Tri-State League | , | |
| Ed Biecher | bieche001ed- | 1906 | 6/19-9/15 | Johnstown Johnnies | Tri-State League | , | |
| Joseph Biehl | biehl-001jos | 1906 | Lykens | WmsValley | , | ||
| Joseph Biehl | biehl-001jos | 1906 | Robeson | Reading City | , | ||
| William Bierhalter | 1906 | 7/24-9/23 | Umpire | New York State League | , | ||
| John Bierkotte | 1906 | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | |||
| Fred Bierman | bierma001fre | 1906 | 4/26-6/2 | Danville Red Sox | Virginia League | , | |
| Fred Bierman | bierma001fre | 1906 | 6/7-9/3 | Augusta Tourists | South Atlantic League | , | |
| Clarence Biersdorfer | 1906 | 5/1-5/22 | Dayton Veterans | Central League | , | ||
| Albert Biery | biery-001rob | 1906 | 135 g. | Mansfield Giants | Ohio-Pennsylvania League | , | |
| Henry Bies | 1906 | 7/10 | Freeport Pretzels | Wisconsin State League | , | ||
| Henry Bies | 1906 | 9/11 | Menasha WI | Independent | , | ||
| Frank Bigbie | bigbie001fra | 1906 | 4/25-6/8 | Dallas Giants | Texas League | , | |
| Frank Bigbie | bigbie001fra | 1906 | 6/9-9/3 | Waco Navigators | Texas League | , | |
| George Bigbie | bigbie001geo | 1906 | 4/27-9/8 | Lynn Shoemakers | New England League | , | |
| George Bigbie | bigbie001geo | 1906 | Oakland Oaks | Pacific Coast League | , | ||
| Edward Biggins | 1906 | 4/28 | New London Whalers | Connecticut State League | , | ||
| Edward Biggins | 1906 | 5/12-5/16 | New Haven Blues | Connecticut State League | , | ||
| Harry Billett | billet001har | 1906 | 4/27-9/8 | Lawrence Colts | New England League | , | |
| Harry Billett | billet001har | 1906 | 9/10-9/11 | York Penn Parks | Tri-State League | , | |
| Harry Billiard | billia001har | 1906 | 4/24 | Birmingham Barons | Southern Association | , | |
| Harry Billiard | billia001har | 1906 | 5/1-8/22 | Meridian Ribboners | Cotton States League | , | |
| Billings | 1906 | 7/2-7/17 | Lake Charles Creoles | South Texas League | , | ||
| Billings | 1906 | Vincennes Univ. | College | , | |||
| Joseph Bills | bills-001jos | 1906 | 95 g. | Keokuk Indians | Iowa League | , | |
| Bingham | 1906 | Empire State League | , | ||||
| Bert Bircher | 1906 | +6/17-8/18+ | Atlantic IA | Independent | , | ||
| Bert Bircher | 1906 | +7/26+ | Casey IA | Independent | , | ||
| Charles Bird | bird--001cha | 1906 | New London Whalers | Connecticut State League | , | ||
| Thomas Bird | bird--001tho | 1906 | 4/12-7/7 | New Orleans Pelicans | Southern Association | , | |
| Thomas Bird | bird--001tho | 1906 | 7/18-9/15 | Little Rock Travelers | Southern Association | , | |
| Birmingham | 1906 | 20 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Joe Birmingham | birmin001jos | 1906 | 5/11-9/8 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Joe Birmingham | birmin001jos | 1906 | 9/12- | 10 g. | Cleveland | American League | Cleveland, OH |
| W. F. Bischoff | 1906 | Rutland | Northern Independent League | , | |||
| Charles Bishop | bishop002cha | 1906 | , | ||||
| Charles Bishop | bishop002cha | 1906 | 37 g. | Vicksburg Hill Billies | Cotton States League | , | |
| Charles? Bishop | 1906 | 7/19 | Darlington | South Carolina League | , | ||
| John Bishop | bishop001joh | 1906 | 4/26-5/25 | Umpire | Virginia League | , | |
| John Bishop | bishop001joh | 1906 | 5/30-6/16 | Danville Red Sox | Virginia League | , | |
| Wilbert Bissell | bissel001wil | 1906 | 132 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| John Bissett | bisset001joh | 1906 | 234 ab | Paterson Intruders | Hudson River League | , | |
| George Bittrolff | bittro001geo | 1906 | 5/4-9/12 | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Black | 1906 | 6/5+ | Guthrie Senators | South Central League | , | ||
| Black | 1906 | 29 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Cyrus Black | black-001cyr | 1906 | 29 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| George Black | black-001geo | 1906 | 5/15-7/7 | Battle Creek Crickets | Southern Michigan League | , | |
| George Black | black-001geo | 1906 | Battle Creek | Independent | , | ||
| Harry Black | 1906 | 5/20-5/30 | Umpire | Ohio-Pennsylvania League | , | ||
| Robert Black | black-003rob | 1906 | 5/8-7/11 | Umpire | South Atlantic League | , | |
| Robert Black | black-003rob | 1906 | 7/21-9/8 | Umpire | Virginia League | , | |
| Charles Blackburn | blackb001cha | 1906 | 8 g. | Lake Charles Creoles | South Texas League | , | |
| George Blackburn | blackb001geo | 1906 | 4/16-5/15 | Macon Brigands | South Atlantic League | , | |
| George Blackburn | blackb001geo | 1906 | 5/17-6/18 | Jacksonville Jays | South Atlantic League | , | |
| George Blackburn | blackb001geo | 1906 | 6/21-8/18 | Darlington | South Carolina League | , | |
| George Blackburn | blackb001geo | 1906 | 8/25-9/7 | Roanoke Tigers | Virginia League | , | |
| Herschel Blackburn | blackb001hen | 1906 | 6/17-8/3+ | Coffeyville Bricks | Kansas State League | , | |
| Herschel Blackburn | blackb001hen | 1906 | +8/15-9/9 | Parsons Preachers | Kansas State League | , | |
| Joe Blackburn | blackb002r-- | 1906 | 5/3-8/17+ | Dubuque Dubs | Illinois-Indiana-Iowa League | , | |
| Blaine | 1906 | +8/8+ | Montpelier-Barre | Northern Independent | , | ||
| Guy Blair | blair-001guy | 1906 | +5/31-8/25+ | Jackson Convicts | Southern Michigan League | , | |
| Walter Blair | blair-001wal | 1906 | 4/25-9/15 | Williamsport Millionaires | Tri-State League | , | |
| Bill Blake | blake-001wil | 1906 | 4/12-9/15 | New Orleans Pelicans | Southern Association | , | |
| Harry Blake | blake-001har | 1906 | 5/2- | 28 g. | Pueblo Indians | Western League | , |
| James Blake | 1906 | Bucknell Univ. | College | , | |||
| James Blake | 1906 | 6/19-8/24 | Williamsport Millionaires | Tri-State League | , | ||
| James Blake | 1906 | 8/27-9/15 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| John Blakeney | 1906 | 7/3- | 18 g. | Houston Buffaloes | South Texas League | , | |
| Foster Blanchard | blanch001fos | 1906 | 5/11-6/4 | Utica Pent-Ups | New York State League | , | |
| Foster Blanchard | blanch001fos | 1906 | Tri-County | Hudson River League | , | ||
| Foster Blanchard | blanch001fos | 1906 | 8/4-8/28 | Utica Pent-Ups | New York State League | , | |
| Frank Blanford | blanfo000fra | 1906 | Sioux Falls SD | Independent | , | ||
| Ross Blanton | 1906 | Waycross Machinists | Georgia State League | , | |||
| Ross Blanton | 1906 | 7/16-8/18 | Georgetown | South Carolina League | , | ||
| John Blass | blass-001joh | 1906 | 4/16- | N.O.-Postal | New Orleans Mercantile League | , | |
| John Blass | blass-001joh | 1906 | +10/14+ | N.O.-Gold Bands | New Orleans Mercantile League | , | |
| Alfred Blatchford | blatch001alf | 1906 | no g. | Lowell Tigers | New England League | , | |
| Ray Blausser | 1906 | 100 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | ||
| Roy Blausser | 1906 | 17 g. | Keokuk Indians | Iowa League | , | ||
| Dummy Blevin | 1906 | 7/8-7/9 | Independence Coyotes | Kansas State League | , | ||
| Dummy Blevin | 1906 | 7/18 | Coffeyville Bricks | Kansas State League | , | ||
| Dummy Blevin | 1906 | 7/21- | Chanute Browns | Kansas State League | , | ||
| Theodore Blexrud | blexru001mel | 1906 | Oakland Commuters | California League | , | ||
| Theodore Blexrud | blexru001mel | 1906 | 8/4-9/3 | Spokane Indians | Northwestern League | , | |
| Theodore Blexrud | blexru001mel | 1906 | 2 g. | Oakland Oaks | Pacific Coast League | , | |
| Elmer Bliss | bliss-001elm | 1906 | 4/27-9/21 | Grand Rapids Wolverines | Central League | , | |
| Bruno Block | block-001jam | 1906 | 44 g. | Galveston Sand Crabs | South Texas League | , | |
| Bruno Block | block-001jam | 1906 | 9/13-9/16 | Milwaukee Brewers | American Association | , | |
| Blodgett | blodge002--- | 1906 | 5/3- | Saginaw | Interstate Association | , | |
| Blodgett | blodge002--- | 1906 | Sagi-Schemms | Independent | , | ||
| Lynn Bloom | bloom-004--- | 1906 | 5/30-9/9 | Chanute Browns | Kansas State League | , | |
| Blooming | 1906 | 5/30 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Bloss | 1906 | Univ. of Kansas | College | , | |||
| Bloss | 1906 | 6/11-6/14 | Chanute Browns | Kansas State League | , | ||
| Curley Blount | blount001iow | 1906 | 4/28-8/17 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Barney Blue | 1906 | no g. | Temple Boll Weevils | Texas League | , | ||
| Bert Blue | blue--001bir | 1906 | 4/18-9/16 | Columbus Senators | American Association | , | |
| Pearl Bluejacket | blueja001pea | 1906 | 5/1-6/19+ | Muskogee Indians | South Central League | , | |
| Pearl Bluejacket | blueja001pea | 1906 | 6/27-7/2+ | Tulsa Oilers | South Central League | , | |
| George Boardman | boardm001geo | 1906 | 4/27-8/25 | Haverhill Hustlers | New England League | , | |
| Oscar Bockewitz | 1906 | 5/7-6/1 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | ||
| Oscar Bockewitz | 1906 | 36 g. | Marshalltown Brownies | Iowa League | , | ||
| John Bockstahler | bockst001j-- | 1906 | 4/26-5/23 | Bridgeport Orators | Connecticut State League | , | |
| Oscar Boettiger | boetti001osc | 1906 | 4/28-7/29 | Grays Harbor Lumbermen | Northwestern League | , | |
| Richard Boettiger | boetti001ric | 1906 | 4/28-9/3 | Grays Harbor Lumbermen | Northwestern League | , | |
| Ernest Bogue | 1906 | 5/7-5/12+ | Independence Coyotes | Kansas State League | , | ||
| Luke Bohannon | bohann001l-- | 1906 | 4/11-9/15 | Nashville Volunteers | Southern Association | , | |
| Patrick Bohannon | bohann001pat | 1906 | 6/22-9/16 | Kansas City Blues | American Association | , | |
| Patrick Boland | boland001pat | 1906 | Olean Refiners | Interstate League | , | ||
| Walter Boles | boles-001wal | 1906 | 4/25-9/2 | Fort Worth Panthers | Texas League | , | |
| Walter Boles | boles-001wal | 1906 | 9/13-9/21 | Topeka White Sox | Western Association | , | |
| Charles Bolin | 1906 | +7/2-7/19+ | Jackson Convicts | Southern Michigan League | , | ||
| Charles Bolin | 1906 | 7/21-9/23 | Kalamazoo White Sox | Southern Michigan League | , | ||
| John Bolin | bolin-003joh | 1906 | 4/15-4/27 | New Orleans Pelicans | Southern Association | , | |
| John Bolin | bolin-003joh | 1906 | 5/12-8/22 | Gulfport Crabs | Cotton States League | , | |
| Charles Bomar | bomar-001cha | 1906 | 5/3-9/16 | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Carl Bond | bond--001car | 1906 | 116 g. | La Crosse Pinks | Wisconsin State League | , | |
| Harold Bond | bond--001har | 1906 | Macalaster Univ. | College | , | ||
| Harold Bond | bond--001har | 1906 | 5/19-9/3 | Winnipeg Maroons | Northern-Copper Country League | , | |
| George Bone | bone--001geo | 1906 | Hartford Senators | Connecticut State League | , | ||
| Jack Bonner | bonner001joh | 1906 | 4/25-9/15 | Harrisburg Senators | Tri-State League | , | |
| Frank Bonnett | bonnet001fra | 1906 | Oil City-Jamestown Oseejays | Interstate League | , | ||
| Gus Bonno | bonno-001gus | 1906 | 4/24-5/12 | Augusta Tourists | South Atlantic League | , | |
| Gus Bonno | bonno-001gus | 1906 | 6/11-8/18 | Orangeburg | South Carolina League | , | |
| Gus Bonno | bonno-001gus | 1906 | 8/21-9/5 | Norfolk Tars | Virginia League | , | |
| Harry Boone | 1906 | Umpire | South Texas League | , | |||
| George Booth | booth-001geo | 1906 | Oswego | Empire State League | , | ||
| Borden | 1906 | 8/12-8/21 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| E. Borden | 1906 | Bridgeport Orators | Connecticut State League | , | |||
| Bosquet | 1906 | 8/11 | Des Moines Champs | Western League | , | ||
| Bosquet | 1906 | 9/2 | Trinidad-BigSix | Independent | , | ||
| Henry Bosse | 1906 | 5/3-9/16 | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| Charles Botsford | bottsf001cha | 1906 | 25 g. | Oshkosh Indians | Wisconsin State League | , | |
| Billy Bottenus | botten001wil | 1906 | 33 g. | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Billy Bottenus | botten001wil | 1906 | 8/29-9/15 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Alexander Boucher | bouche001ale | 1906 | 5/1-7/2 | Lancaster Red Roses | Tri-State League | , | |
| Alexander Boucher | bouche001ale | 1906 | 7/10-9/23 | Albany Senators | New York State League | , | |
| Jim Bouldin | bouldi001jam | 1906 | OK State U. | College | , | ||
| Jim Bouldin | bouldi001jam | 1906 | 4/29-5/15 | South McAlester Miners | South Central League | , | |
| Jim Bouldin | bouldi001jam | 1906 | 6/8-7/18 | Tulsa Oilers | South Central League | , | |
| Jim Bouldin | bouldi001jam | 1906 | El Reno | Independent | , | ||
| Jake Boultes | boulte001jac | 1906 | 4/21-4/23 | Little Rock Travelers | Southern Association | , | |
| Jake Boultes | boulte001jac | 1906 | St.L.-Ben Miller | St. Louis Trolley League | , | ||
| Art Bourgeois | bourge001art | 1906 | 122 g. | Oshkosh Indians | Wisconsin State League | , | |
| Benny Bowcock | bowcoc001ben | 1906 | 4/27-9/8 | Fall River Indians | New England League | , | |
| Kid Bowden | bowden000kid | 1906 | Jackson Senators | Cotton States League | , | ||
| Andrew Bowen | bowen-001and | 1906 | 4/28-9/8 | Lynchburg Shoemakers | Virginia League | , | |
| Charley Bowen | 1906 | Summit NJ | Independent | , | |||
| Charley Bowen | 1906 | 8/1 | Toronto Maple Leafs | Eastern League | , | ||
| Cy Bowen | bowen-001sut | 1906 | 5/11-9/17 | Wilkes-Barre Barons | New York State League | , | |
| D. P. Bowen | 1906 | +5/16-6/14+ | Parsons Preachers | Kansas State League | , | ||
| D. P. Bowen | 1906 | 6/29-9/9 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| John Bowen | 1906 | +5/28-6/20+ | Waycross Machinists | Georgia State League | , | ||
| John Bowen | 1906 | 7/16-8/18 | Georgetown | South Carolina League | , | ||
| John Bowen | 1906 | 8/21-9/8 | Lynchburg Shoemakers | Virginia League | , | ||
| Frank Bowerman | bowerm001fra | 1906 | 92 g. | New York | National League | New York, NY | |
| Clint Bowers | 1906 | Wm. Jewell Col. | College | , | |||
| Clint Bowers | 1906 | Coffeyville Bricks | Kansas State League | , | |||
| George Bowers | bowers001geo | 1906 | 6/8-6/12 | New London Whalers | Connecticut State League | , | |
| L. C. Bowers | 1906 | 8/20-8/30 | Waco Navigators | Texas League | , | ||
| Rube Bowers | bowers001d-- | 1906 | no g. | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Rube Bowers | bowers001d-- | 1906 | +5/14+ | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Goldie Bowler | bowler001p-- | 1906 | 4/28-8/23 | Springfield Ponies | Connecticut State League | , | |
| Bowles | 1906 | 4/30 | Lake Charles Creoles | South Texas League | , | ||
| Frank Bowman | bowman001fra | 1906 | Seattle Siwashes | Pacific Coast League | , | ||
| Morgan Bowman | 1906 | 9/11-9/15 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Red Bowser | bowser001jam | 1906 | 8/1 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Red Bowser | bowser001jam | 1906 | +9/1+ | Scottdale PA | Independent | , | |
| Boyd | 1906 | 19 g. | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Boyd | 1906 | 7/23 | San Antonio Bronchos | South Texas League | , | ||
| James Boyd | 1906 | 7/20-8/21 | Richmond Colts | Virginia League | , | ||
| James Boyd | 1906 | 8/31-9/8 | Roanoke Tigers | Virginia League | , | ||
| Smith Boyd | 1906 | 5/3-7/3+ | Albany | Georgia State League | , | ||
| William Boyd | boyd--001gra | 1906 | 7/20-9/4 | Baton Rouge Cajuns | Cotton States League | , | |
| Earl Boyer | 1906 | 5/19-5/21+ | Houghton Giants | Northern-Copper Country League | , | ||
| Earl Boyer | 1906 | Hibbing MN | Independent | , | |||
| Boylan | 1906 | +6/3-6/9+ | Lake Linden Sandy Cities | Northern-Copper Country League | , | ||
| Boyle | 1906 | Alameda Grays | California League | , | |||
| Boyle | 1906 | 71 g. | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | ||
| Boyle | 1906 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |||
| Edward Boyle | 1906 | ?-6/28 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | ||
| Edward Boyle | 1906 | +8/1-8/23+ | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | ||
| Frank Boyle | boyle-001fra | 1906 | Fort Dodge Gypsumites | Iowa League | , | ||
| Frederick Boyle | boyle-001f-- | 1906 | no g. | Montgomery Senators | Southern Association | , | |
| Frederick Boyle | boyle-001f-- | 1906 | 5/18-5/26 | Savannah Indians | South Atlantic League | , | |
| Frederick Boyle | boyle-001f-- | 1906 | 6/8-6/18 | Albany Senators | New York State League | , | |
| Frederick Boyle | boyle-001f-- | 1906 | 7/1+ | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Frederick Boyle | boyle-001f-- | 1906 | 8/2-9/15 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| George Boyle | 1906 | Alle.-Temperance | Independent | , | |||
| Jack Boyle | boyle-001jac | 1906 | 4/26-7/7+ | Terre Haute Hottentots | Central League | , | |
| Brace | 1906 | +9/8+ | 12 g. | Battle Creek Crickets | Southern Michigan League | , | |
| Bracey | 1906 | +6/7-6/20+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Jack Bracken | bracke001joh | 1906 | Kent OH | Independent | , | ||
| John Brackenridge | bracke002joh | 1906 | 5/8-5/19 | Lancaster Red Roses | Tri-State League | , | |
| Edward Bradley | bradle001edw | 1906 | 124 g. | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Edward Bradley | bradle001edw | 1906 | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Ernest Bradley | bradle001ern | 1906 | 89 g. | San Antonio Bronchos | South Texas League | , | |
| Ernest Bradley | bradle001ern | 1906 | Austin Senators | South Texas League | , | ||
| Hugh Bradley | 1906 | 4/27-9/7 | Worcester Busters | New England League | , | ||
| James Bradley | bradle001jam | 1906 | Waterloo Microbes | Iowa League | , | ||
| James Bradley | bradle001jam | 1906 | Ottumwa Champs | Iowa League | , | ||
| John Bradley | 1906 | +5/31-7/19+ | Jackson Convicts | Southern Michigan League | , | ||
| John Bradley | 1906 | +7/25-9/23 | Battle Creek Crickets | Southern Michigan League | , | ||
| Frank Brady | brady-001fra | 1906 | <10 5/3- | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | |
| J. J. Brady | 1906 | 4/19-8/1 | Umpire | Cotton States League | , | ||
| John Brady | 1906 | Stockton Millers | California League | , | |||
| King Brady | brady-005jam | 1906 | 3 g. | Pittsburgh | National League | Pittsburgh, PA | |
| King Brady | brady-005jam | 1906 | 4/19-9/15 | Little Rock Travelers | Southern Association | , | |
| Red? Brady | 1906 | 8/22-8/23 | Evansville River Rats | Central League | , | ||
| Louis Brahic | brahic000dic | 1906 | no g. | Montgomery Senators | Southern Association | , | |
| Louis Brahic | brahic000dic | 1906 | 5/4-8/17 | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| Frank Braman | 1906 | 5/15-5/18+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| Charles Brand | 1906 | Buffalo Central HS | High School | , | |||
| Earl Brand | 1906 | Central IL | Independent | , | |||
| Earl Brand | 1906 | Dayton Veterans | Central League | , | |||
| William Brand | 1906 | 5/19-9/3 | Houghton Giants | Northern-Copper Country League | , | ||
| Chick Brandom | brando001che | 1906 | no g. | Wichita Jobbers | Western Association | , | |
| Chick Brandom | brando001che | 1906 | 5/3- | Pittsburg/Vinita Champs | Kansas State League | , | |
| Chick Brandom | brando001che | 1906 | -9/9 | 33 g. | Independence Coyotes | Kansas State League | , |
| Kitty Brashear | brashe001nor | 1906 | 67 g. | Los Angeles Angels | Pacific Coast League | , | |
| Kitty Brashear | brashe001nor | 1906 | 6/4-7/19 | Johnstown Johnnies | Tri-State League | , | |
| Kitty Brashear | brashe001nor | 1906 | 7/21-9/15 | Altoona Mountaineers | Tri-State League | , | |
| Kitty Brashear | brashe001nor | 1906 | Los Angeles Angels | Pacific Coast League | , | ||
| Roy Brashear | brashe002roy | 1906 | 4/18-9/16 | Louisville Colonels | American Association | , | |
| Carl Braun | 1906 | 51 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Carl Braun | 1906 | Alexandria LA | Independent | , | |||
| Silver Braun | braun-005wil | 1906 | 5/2-9/8 | New Bedford Whalers | New England League | , | |
| Arthur Brayley | 1906 | 7/26 | Lowell Tigers | New England League | , | ||
| Otis Brazell | brazze001oti | 1906 | 9/1 | Little Rock Travelers | Southern Association | , | |
| Breckbill | 1906 | Mt. Pleasant PA | Independent | , | |||
| Edwin Breckenridge | brecke002edw | 1906 | Amherst College | College | , | ||
| Edwin Breckenridge | brecke002edw | 1906 | So Manchester | Independent | , | ||
| Herbert Bredenhagen | 1906 | +6/10+ | St.Paul-Austin | Independent | , | ||
| Herbert Bredenhagen | 1906 | +9/2+ | Hibbing MN | Independent | , | ||
| Frank Breed | 1906 | Umpire | Independent | , | |||
| James Breen | 1906 | Punxsutawney Policemen | Interstate League | , | |||
| Jimmie Breen | breen-002jam | 1906 | DuBois Miners | Interstate League | , | ||
| Richard Breen | 1906 | 9/6-9/21 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | ||
| Bill Breitenstein | breite001wil | 1906 | 4/15-4/23 | Shreveport Pirates | Southern Association | , | |
| Bill Breitenstein | breite001wil | 1906 | 5/31-9/14 | Montgomery Senators | Southern Association | , | |
| Theodore Breitenstein | breite001the | 1906 | 4/12-9/15 | New Orleans Pelicans | Southern Association | , | |
| O. Brekke | 1906 | +7/30+ | Hillsboro ND | Independent | , | ||
| Frank Bremen | 1906 | 5/15-5/18+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| Oscar Brenna | 1906 | 5/19-7/14+ | Winnipeg Maroons | Northern-Copper Country League | , | ||
| Edward Brennan | 1906 | +5/19- | 20 g. | San Antonio Bronchos | South Texas League | , | |
| Edward Brennan | 1906 | 6/22-6/30 | Temple Boll Weevils | Texas League | , | ||
| J. Edward Brennan | 1906 | 79 g. | Waterloo Microbes | Iowa League | , | ||
| John Brennan | brenna002joh | 1906 | 4/16-4/24 | Charleston Sea Gulls | South Atlantic League | , | |
| John Brennan | brenna002joh | 1906 | 5/8 | Macon Brigands | South Atlantic League | , | |
| John Brennan | brenna002joh | 1906 | 5/11 | Savannah Indians | South Atlantic League | , | |
| John Brennan | brenna002joh | 1906 | 7/7-7/11+ | 3 g. | Mobile Sea Gulls | Cotton States League | , |
| John Brennan | brenna002joh | 1906 | 7/24-8/18 | Sumter Game Cocks | South Carolina League | , | |
| John Brennan | brenna002joh | 1906 | 8/21 | Norfolk Tars | Virginia League | , | |
| John Brennan | brenna002joh | 1906 | 9/1-9/15 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| John Brennan | 1906 | no g. | Sioux City Packers | Western League | , | ||
| John Brennan | 1906 | 79 g. | Waterloo Microbes | Iowa League | , | ||
| William Brennan | brenna006wil | 1906 | 5/3 | Lowell Tigers | New England League | , | |
| William Brennan | brenna006wil | 1906 | Bennington VT | , | |||
| William Brennan | brenna006wil | 1906 | North Adams MA | Independent | , | ||
| William Brennan | 1906 | 5/4-6/20 | Umpire | Western Association | , | ||
| William Brennan | 1906 | Umpire | Western League | , | |||
| Brenner | 1906 | +6/13+ | Americus Pallbearers | Georgia State League | , | ||
| Brent | brent-007--- | 1906 | 5/24-9/4 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | |
| Rube Bressler | bressl001har | 1906 | 5/1-8/23 | Williamsport Millionaires | Tri-State League | , | |
| Mike Breyette | breyet001mic | 1906 | 105 g. | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Harry Breymaier | 1906 | 62 g. | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Edward Bridges | bridge001edw | 1906 | 4/26-9/3 | Norwich Reds | Connecticut State League | , | |
| Fred Bridges | bridge001fre | 1906 | 5/3-7/5 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Fred Bridges | bridge001fre | 1906 | 7/14-9/15 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Marvin Bridges | bridge002mar | 1906 | Wash. & Jefferson | College | , | ||
| Marvin Bridges | bridge002mar | 1906 | 5/26-9/14 | Washington | Pennsylvania-Ohio-Maryland League | , | |
| Al Bridwell | bridwe001alb | 1906 | Boston | National League | Boston, MA | ||
| Joseph Briger | 1906 | 5/18 | Albany Senators | New York State League | , | ||
| Joseph Briger | 1906 | 7/16 | Binghamton Bingoes | New York State League | , | ||
| Buttons Briggs | briggs001her | 1906 | , | ||||
| Joseph Briggs | briggs002jos | 1906 | 4/27-9/8 | Lawrence Colts | New England League | , | |
| Ollie Bright | bright008--- | 1906 | Emporia State U. | College | , | ||
| Ollie Bright | bright008--- | 1906 | +6/11-8/21+ | Chanute Browns | Kansas State League | , | |
| William Brinker | brinke001wil | 1906 | U. Washington | College | , | ||
| William Brinker | brinke001wil | 1906 | 4/18 | Indianapolis Indians | American Association | , | |
| William Brinker | brinke001wil | 1906 | 5/3-5/22 | Des Moines Champs | Western League | , | |
| William Brinker | brinke001wil | 1906 | 6/8-9/2 | Grays Harbor Lumbermen | Northwestern League | , | |
| Paul Brinson | 1906 | 9/3 | Augusta Tourists | South Atlantic League | , | ||
| Frank Brisbine | brisbi001fra | 1906 | 35 g. | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Frank Brisbine | brisbi001fra | 1906 | 6/8-6/12 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Frank Brisbine | brisbi001fra | 1906 | +6/28+ | Scottdale Pa | Independent | , | |
| Frank Brisbine | brisbi001fra | 1906 | 8/22-9/1 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Albert Briseno | brisen001alb | 1906 | Alameda | California State League | , | ||
| Albert Briseno | brisen001alb | 1906 | 4/28-9/3 | Butte Miners | Northwestern League | , | |
| Joseph Briskey | briske001jos | 1906 | 115 g. | Houston Buffaloes | South Texas League | , | |
| George Bristow | bristo002geo | 1906 | 5/17-7/18 | Spokane Indians | Northwestern League | , | |
| George Bristow | bristo002geo | 1906 | Coeur d’Alene | Independent | , | ||
| George Bristow | bristo002geo | 1906 | 8/23-9/3 | Umpire | Northwestern League | , | |
| Britis | 1906 | 5/16 | South McAlester Miners | South Central League | , | ||
| Arlington Britton | 1906 | Interstate League | , | ||||
| William Brittsan | britts001w-- | 1906 | 4/18-4/30 | Minneapolis Millers | American Association | , | |
| William Brittsan | britts001w-- | 1906 | 5/6-8/10 | Terre Haute Hottentots | Central League | , | |
| William Brittsan | britts001w-- | 1906 | 8/12-9/23 | Canton Chinamen | Central League | , | |
| Broadbent | 1906 | 7/9-7/11 | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| King Brockett | brocke001lew | 1906 | 4/30-9/22 | Buffalo Bisons | Eastern League | , | |
| Matt Broderick | broder001mat | 1906 | 5/25-6/2 | Altoona Mountaineers | Tri-State League | , | |
| Matt Broderick | broder001mat | 1906 | 6/13-8/17 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| Steve Brodie | brodie001wal | 1906 | 4/26-8/1 | Providence Grays | Eastern League | , | |
| Steve Brodie | brodie001wal | 1906 | 8/10-9/14 | Newark Sailors | Eastern League | , | |
| Brogan | 1906 | 8/28-8/29 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Jimmy Brogan | 1906 | 6/5-6/15 | Hartford Senators | Connecticut State League | , | ||
| Chas. Bronkie | 1906 | 5/6 | Newark Sailors | Eastern League | , | ||
| Chas. Bronkie | 1906 | 5/14-6/14 | Waterbury Authors | Connecticut State League | , | ||
| Chas. Bronkie | 1906 | 6/25-9/8 | Hartford Senators | Connecticut State League | , | ||
| Chas. Bronkie | 1906 | 9/13-9/15 | Newark Sailors | Eastern League | , | ||
| Virgil Brookbanks | 1906 | Cinc-Hubigs | Independent | , | |||
| Richard Brookins | 1906 | 118 g. | Green Bay Colts | Wisconsin State League | , | ||
| Brooks | 1906 | Norfolk Tars | Virginia League | , | |||
| Joseph Brophy | 1906 | 5/29-9/15 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Frederick Broshard | brosha001f-- | 1906 | +7/18+ | Geneva | Empire State League | , | |
| Michael Brosius | 1906 | 4/29-5/30 | Evansville River Rats | Central League | , | ||
| Michael Brosius | 1906 | 6/3-9/13 | Terre Haute Hottentots | Central League | , | ||
| Art Brouthers | brouth001art | 1906 | 4/14-6/23 | Philadelphia | American League | Philadelphia, PA | |
| Art Brouthers | brouth001art | 1906 | 7/10-9/15 | New Orleans Pelicans | Southern Association | , | |
| Dan Brouthers | brouth001den | 1906 | Newburgh Hill Climbers | Hudson River League | , | ||
| Brown | 1906 | 7/24 | Muskogee Indians | South Central League | , | ||
| Brown | 1906 | +6/2-7/4+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Brown | 1906 | 9/8-9/23 | Terre Haute Hottentots | Central League | , | ||
| Brown | 1906 | 5/26 | Americus Pallbearers | Georgia State League | , | ||
| Brown | 1906 | 6/1 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Arthur Brown | brown-002art | 1906 | 4/26-9/21 | Newark Sailors | Eastern League | , | |
| Bob Brown | brown-027rob | 1906 | 4/28-9/3 | Grays Harbor Lumbermen | Northwestern League | , | |
| Buster Brown | brown-008cha | 1906 | 32 g. | St. Louis | National League | St. Louis, MO | |
| Charles Brown | brown-014cha | 1906 | 114 g. | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Charles Brown | brown-014cha | 1906 | Lancaster Lanks | Ohio-Pennsylvania League | , | ||
| Delmar Brown | 1906 | 7/7-9/17 | Wilkes-Barre Barons | New York State League | , | ||
| Dick Brown | brown-001ric | 1906 | +5/6-7/18+ | Pittsburg/Vinita Champs | Kansas State League | , | |
| Dick Brown | brown-001ric | 1906 | 7/20-8/2 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Ed Brown | 1906 | 5/14-5/18 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Ed Brown | 1906 | 32 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| Fred Brown | brown-004fre | 1906 | 5/3- | Haverhill Hustlers | New England League | , | |
| Fred Brown | brown-004fre | 1906 | -6/22 | Lowell Tigers | New England League | , | |
| Fred Brown | brown-005fre | 1906 | Sacramento Cordovas | California League | , | ||
| Fred Brown | brown-005fre | 1906 | San Francisco Seals | Pacific Coast League | , | ||
| Gideon Brown | brown-001gid | 1906 | 9/9 | Providence Grays | Eastern League | , | |
| Harry Brown | 1906 | 4/26-8/15 | Roanoke Tigers | Virginia League | , | ||
| Harry Brown | 1906 | 8/30-9/8 | Richmond Colts | Virginia League | , | ||
| James Brown | brown-003jam | 1906 | 4/21-6/11 | Memphis Egyptians | Southern Association | , | |
| James Brown | brown-003jam | 1906 | 6/26-9/15 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| John Brown | 1906 | San Francisco Seals | Pacific Coast League | , | |||
| John Brown | 1906 | 118 g. | Meridian Ribboners | Cotton States League | , | ||
| Joseph Brown | brown-009jos | 1906 | 4/28-5/4 | New Bedford Whalers | New England League | , | |
| Loren Brown | brown-001lor | 1906 | 5/11-5/12 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Loren Brown | brown-001lor | 1906 | 5/26-7/20 | Guthrie Senators | South Central League | , | |
| Loren Brown | brown-001lor | 1906 | +7/25-8/2 | Tulsa Oilers | South Central League | , | |
| Nicol Brown | brown-001dru | 1906 | 5/3- | 62 g. | Independence Coyotes | Kansas State League | , |
| Rollo Brown | brown-003rol | 1906 | 110 g. | Marshalltown Brownies | Iowa League | , | |
| Sam Brown | brown-003sam | 1906 | 4/21- | 71 g. | Boston | National League | Boston, MA |
| Stub Brown | brown-001stu | 1906 | 5/30-7/13 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | |
| Stub Brown | brown-001stu | 1906 | +9/8+ | Balt.-Stars | Independent | , | |
| Tom Brown | brown-012tho | 1906 | 4/25-9/14 | Umpire | Tri-State League | , | |
| Tom Brown | brown-012tho | 1906 | 9/15 | Williamsport Millionaires | Tri-State League | , | |
| W. J. Brown | 1906 | Punxsutawney Policemen | Interstate League | , | |||
| W. J. Brown | 1906 | 7/11 | Atlanta Crackers | Southern Association | , | ||
| W. John Brown | 1906 | 4/19-9/3 | Meridian Ribboners | Cotton States League | , | ||
| Walter Brown | brown-001wal | 1906 | 4/30-5/2 | Austin Senators | South Texas League | , | |
| Frank Browning | browni001fra | 1906 | +5/4-5/25+ | Shawnee Blues | South Central League | , | |
| Frank Browning | browni001fra | 1906 | 6/3-9/2 | Waco Navigators | Texas League | , | |
| Lou Bruce | bruce-001lou | 1906 | 4/19 | Indianapolis Indians | American Association | , | |
| Lou Bruce | bruce-001lou | 1906 | 4/20-5/22 | Columbus Senators | American Association | , | |
| Lou Bruce | bruce-001lou | 1906 | +7/11-8/9+ | Rutland | Northern Independent League | , | |
| Andy Bruckmiller | bruckm001and | 1906 | Dallas Giants | Texas League | , | ||
| Frank Bruggeman | brugge001fra | 1906 | 5/4- | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Frank Bruggeman | brugge001fra | 1906 | 52 g. | Ottumwa Champs | Iowa League | , | |
| Claude Brumley | 1906 | Corbin KS | Independent | , | |||
| Will Bruner | bruner003wil | 1906 | 43 g. | Meridian Ribboners | Cotton States League | , | |
| Will Bruner | bruner003wil | 1906 | 9/15 | Birmingham Barons | Southern Association | , | |
| Brunnell | 1906 | +8/9+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Brunnell | 1906 | +8/9+ | Battle Creek Crickets | Southern Michigan League | , | ||
| J. W. Brunson | 1906 | 8/17 | Manning | South Carolina League | , | ||
| Ed Bruyette | bruyet001edw | 1906 | 8/4-9/3 | Spokane Indians | Northwestern League | , | |
| Henry Bryant | bryant001low | 1906 | 5/2 | Vicksburg Hill Billies | Cotton States League | , | |
| Henry Bryant | bryant001low | 1906 | 5/7-9/4 | Gulfport Crabs | Cotton States League | , | |
| George Bubser | bubser001geo | 1906 | +5/11-5/30+ | Green Bay Colts | Wisconsin State League | , | |
| George Bubser | bubser001geo | 1906 | +8/12-9/19+ | La Crosse Pinks | Wisconsin State League | , | |
| Frank Buchanan | buchan001fra | 1906 | 5/3-5/17 | Valdosta Stars | Georgia State League | , | |
| Jim Buchanan | buchan002jam | 1906 | 4/23-7/16 | St. Paul Saints | American Association | , | |
| Jim Buchanan | buchan002jam | 1906 | 15 g. | Nashville Volunteers | Southern Association | , | |
| Howard Buck | 1906 | Adrian High School | High School | , | |||
| Howard Buck | 1906 | Milford MI | Independent | , | |||
| Howard Buck | 1906 | +7/1-7/11+ | Jackson Convicts | Southern Michigan League | , | ||
| Al Buckenberger | bucken001al- | 1906 | 4/26-9/23 | Rochester Bronchos | Eastern League | , | |
| Fred Buckholz | 1906 | 44 g. | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Buckley | 1906 | 5/3-6/14 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Buckley | 1906 | 6/15-6/29 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Howard Buckley | buckle001how | 1906 | 5/1-6/14 | Norwich Reds | Connecticut State League | , | |
| William Buckley | 1906 | 4/11-8/8 | Umpire | Southern Association | , | ||
| William Buckley | 1906 | Umpire | Texas League | , | |||
| Percy Buckwalter | buckwa001per | 1906 | +6/10+ | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | |
| Charlie Buelow | buelow001cha | 1906 | 5/3-9/16 | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Fritz Buelow | buelow001fre | 1906 | 34 g. | Cleveland | American League | Cleveland, OH | |
| Albert Buemiller | 1906 | 125 g. | Keokuk Indians | Iowa League | , | ||
| Jack Bufka | bufka-001joh | 1906 | 72 g. | Calumet Aristocrats | Northern-Copper Country League | , | |
| John Bunton | bunton001joh | 1906 | +5/3+ | 31 g. | Houston Buffaloes | South Texas League | , |
| John Bunton | bunton001joh | 1906 | Beaumont Oilers | South Texas League | , | ||
| John Bunyan | bunyan001joh | 1906 | 4/26-9/7 | New Haven Blues | Connecticut State League | , | |
| Al Burch | burch-001alb | 1906 | 4/25-6/16 | Altoona Mountaineers | Tri-State League | , | |
| Al Burch | burch-001alb | 1906 | 6/19- | 91 g. | St. Louis | National League | St. Louis, MO |
| Lyman Burch | burch-001l-- | 1906 | 55 g. | Keokuk Indians | Iowa League | , | |
| Fred Burchell | burche001fre | 1906 | 4/26-9/22 | Baltimore Orioles | Eastern League | , | |
| O. N. Burden | 1906 | , | |||||
| O. N. Burden | 1906 | Macon Brigands | South Atlantic League | , | |||
| O. N. Burden | 1906 | +5/31-6/27+ | Valdosta Stars | Georgia State League | , | ||
| Clyde Burdette | 1906 | Havana IL | Independent | , | |||
| Clyde Burdette | 1906 | 20 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| Joe Burg | burg--001jos | 1906 | 5/3-9/16 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Peter Burg | burg--001pet | 1906 | 5/3-9/16 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Samuel Burgess | 1906 | McPherson KS | Independent | , | |||
| Burke | 1906 | 5/16-5/20 | Wichita Jobbers | Western Association | , | ||
| Burke | 1906 | +5/30-6/3 | Guthrie Senators | South Central League | , | ||
| Burke | 1906 | 6/7-6/12 | Roanoke Tigers | Virginia League | , | ||
| Bartholomew Burke | 1906 | San Francisco Seals | Pacific Coast League | , | |||
| Bartholomew Burke | 1906 | Oakland Oaks | Pacific Coast League | , | |||
| Frank Burke | burke-002fra | 1906 | 4/26-9/8 | New Haven Blues | Connecticut State League | , | |
| Frank Burke | burke-002fra | 1906 | 9/14- | 8 g. | New York | National League | New York, NY |
| Frank Burke | burke-008fra | 1906 | 7/2-7/21 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Frank Burke | burke-008fra | 1906 | 7/24- | 83 g. | New Castle Outlaws | Ohio-Pennsylvania League | , |
| Frank Burke | burke-008fra | 1906 | Akron Rubbernecks | Ohio-Pennsylvania League | , | ||
| Jack Burke | 1906 | 6/22-9/3 | San Antonio Bronchos | South Texas League | , | ||
| Jimmy Burke | burke-004jam | 1906 | 4/18-9/16 | Kansas City Blues | American Association | , | |
| Joe Burke | 1906 | Umpire | Cotton States League | , | |||
| John Burke | burke-004joh | 1906 | 6/20-6/25 | Newark Sailors | Eastern League | , | |
| John Burke | burke-004joh | 1906 | 7/17-9/20 | Montreal Royals | Eastern League | , | |
| Johnny Burke | 1906 | 5/17-6/6 | Springfield Ponies | Connecticut State League | , | ||
| Patrick Burke | burke-001pat | 1906 | Newburgh Hill Climbers | Hudson River League | , | ||
| Thomas Burke | 1906 | 4/27-8/9 | Lynn Shoemakers | New England League | , | ||
| Jesse Burkett | burket001jes | 1906 | 5/2-9/9 | Worcester Busters | New England League | , | |
| Oscar Burkett | 1906 | 5/25-9/15 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | ||
| Luther Burleson | burles002lut | 1906 | Baylor Univ. | College | , | ||
| Luther Burleson | burles002lut | 1906 | 4/25-6/30 | Dallas Giants | Texas League | , | |
| Fred Burnam | burnam001fre | 1906 | 4/28 | Atlanta Crackers | Southern Association | , | |
| Fred Burnam | burnam001fre | 1906 | 6/12-6/23 | Atlanta Crackers | Southern Association | , | |
| Fred Burnam | burnam001fre | 1906 | 6/29-7/10 | Montgomery Senators | Southern Association | , | |
| William Burnett | 1906 | +5/19+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| William Burnett | 1906 | 40 g. | Waterloo Microbes | Iowa League | , | ||
| Walter Burnham | burnha002wal | 1906 | 4/27-9/23 | Newark Sailors | Eastern League | , | |
| Burns | 1906 | 4/27-5/19 | Dayton Veterans | Central League | , | ||
| Biddy Burns | 1906 | +5/18-5/24+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| Bill Burns | burns-006wil | 1906 | 36 g. | Los Angeles Angels | Pacific Coast League | , | |
| Edward Burns | burns-001edw | 1906 | +7/2-8/23+ | Montpelier-Barre | Northern Independent | , | |
| Gene Burns | burns-001eug | 1906 | 4/27-5/16 | Waco Navigators | Texas League | , | |
| Jack Burns | burns-007joh | 1906 | 4/18-5/25 | Indianapolis Indians | American Association | , | |
| Jack Burns | burns-007joh | 1906 | 7/30-9/8 | Lowell Tigers | New England League | , | |
| James Burns | 1906 | 7/13-9/8 | Springfield Ponies | Connecticut State League | , | ||
| John Burns | burns-001joh | 1906 | 5/24-6/16 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| John Burns | burns-001joh | 1906 | 7/13-7/25 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| John Burns | burns-001joh | 1906 | 8/4-9/25 | Dayton Veterans | Central League | , | |
| William Burns | burns-001wil | 1906 | 5/3-6/3 | Pittsburg/Vinita Champs | Kansas State League | , | |
| William Burns | burns-001wil | 1906 | 6/4-7/4 | Pittsburg/Vinita Champs | Kansas State League | , | |
| William Burns | burns-001wil | 1906 | +7/18-9/9 | Iola Grays/Cherryvale Boosters | Kansas State League | , | |
| William Burns | burns-001wil | 1906 | 9/13-9/21 | Oklahoma City Mets | Western Association | , | |
| Burow | 1906 | 52 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Frank Burrell | burrel001bus | 1906 | 4/28- | New Bedford Whalers | New England League | , | |
| Frank Burrell | burrel001bus | 1906 | -9/8 | Lowell Tigers | New England League | , | |
| Lennius Burrell | burrel001len | 1906 | 4/26-9/22 | Rochester Bronchos | Eastern League | , | |
| William Burroughs | 1906 | , | |||||
| Frank Burson | burson001fra | 1906 | 21 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | |
| Danny Burt | burt--001dan | 1906 | 4/19-9/3 | Columbia Gamecocks | South Atlantic League | , | |
| Edward Burton | 1906 | +8/23+ | Montpelier-Barre | Northern Independent | , | ||
| Edward Burton | 1906 | 8/29-9/7 | Lynn Shoemakers | New England League | , | ||
| Harry Burton | burton007--- | 1906 | +7/25+ | Anac-Old Timers | Independent | , | |
| Harry Burton | 1906 | Burlington | Northern Independent League | , | |||
| Harry Burton | 1906 | 9/18-9/22 | Wilkes-Barre Barons | New York State League | , | ||
| Earl Burwell | burwel001ear | 1906 | Brookings SD | Independent | , | ||
| Byrd Busby | 1906 | Memp.- | City League | , | |||
| Byrd Busby | 1906 | 25 g. | Gulfport Crabs | Cotton States League | , | ||
| Henry Busch | busch-001hen | 1906 | 4/18-9/15 | Montgomery Senators | Southern Association | , | |
| Donie Bush | bush--001owe | 1906 | 5/3-6/5+ | Marion | Interstate Association | , | |
| Donie Bush | bush--001owe | 1906 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | ||
| Donie Bush | bush--001owe | 1906 | +7/22-7/28+ | Saginaw | Southern Michigan League | , | |
| Donie Bush | bush--001owe | 1906 | +8/5-9/25 | Dayton Veterans | Central League | , | |
| G. C. Bush | 1906 | Umpire | Kentucky-Illinois-Tennessee League | , | |||
| Jack Bushelman | bushel001joh | 1906 | 5/4 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Jack Bushelman | bushel001joh | 1906 | 5/19-7/28 | Grand Forks Forkers | Northern-Copper Country League | , | |
| Jack Bushelman | bushel001joh | 1906 | 7/31-9/3 | Winnipeg Maroons | Northern-Copper Country League | , | |
| Alfred Bushey | bushey001alf | 1906 | 5/1-9/8 | Worcester Busters | New England League | , | |
| Harvey Bussey | bussey002har | 1906 | +6/9+ | Bradford Drillers | Interstate League | , | |
| Butchart | butcha000--- | 1906 | 4/8-9/16 | Seat.-Electrics | Independent | , | |
| Ike Butler | butler001isa | 1906 | 4/28-9/3 | Tacoma Tigers | Northwestern League | , | |
| John Butler | butler002joh | 1906 | 5/11-9/22 | Jersey City Skeeters | Eastern League | , | |
| John Butler | butler002joh | 1906 | 1 g. | Brooklyn | National League | Brooklyn, NY | |
| Kid Butler | butler007wil | 1906 | 134 g. | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| Will Butler | butler004wil | 1906 | +5/13-6/30 | Temple Boll Weevils | Texas League | , | |
| Will Butler | butler004wil | 1906 | +8/2+ | Dallas Giants | Texas League | , | |
| Edward Butman | butman001edw | 1906 | 8/14-9/3 | Haverhill Hustlers | New England League | , | |
| John Buttermore | butter001joh | 1906 | Umpire | Pennsylvania-Ohio-Maryland League | , | ||
| Bill Byers | byers-002jam | 1906 | 4/26-9/22 | Baltimore Orioles | Eastern League | , | |
| Herbert Byram | 1906 | Princeton Univ. | College | , | |||
| Bobby Byrne | byrne-003rob | 1906 | 4/12-9/1 | Shreveport Pirates | Southern Association | , | |
| Jim Byrnes | byrnes002jam | 1906 | 4/19-10/3 | Philadelphia | American League | Philadelphia, PA | |
| Jim Byrnes | byrnes002jam | 1906 | Oakland Oaks | Pacific Coast League | , | ||
| Byron | 1906 | 7/23 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| William Byron | 1906 | Umpire | Northern Michigan League | , | |||
| William Byron | 1906 | 8/2-9/3 | Umpire | South Atlantic League | , | ||
| Frank Cable | cable-001fra | 1906 | Omaha Rourkes | Western League | , | ||
| Cadiz | 1906 | +8/11+ | B&O | Independent | , | ||
| Walter Cadman | 1906 | +8/10-8/15+ | Jackson Convicts | Southern Michigan League | , | ||
| Ralph Cadwalader | cadwal001ral | 1906 | 4/27-9/16 | Minneapolis Millers | American Association | , | |
| Ben Caffyn | caffyn001ben | 1906 | 5/2- | 97 g. | Des Moines Champs | Western League | , |
| Ben Caffyn | caffyn001ben | 1906 | 8/21-10/7 | Cleveland | American League | Cleveland, OH | |
| John Cahill | cahill001joh | 1906 | 116 g. | La Crosse Pinks | Wisconsin State League | , | |
| John Cahill | 1906 | 4/27 | Holyoke Paperweights | Connecticut State League | , | ||
| Calder | 1906 | Albany | Georgia State League | , | |||
| S. Calderhead | calder000s-- | 1906 | +6/3+ | Basin MT | Independent | , | |
| Fay Caldwell | caldwe001fay | 1906 | U. Minnesota | College | , | ||
| Fay Caldwell | caldwe001fay | 1906 | Killarney MN | Independent | , | ||
| David Calhoun | 1906 | Punxsutawney Policemen | Interstate League | , | |||
| Jack Calhoun | calhou002joh | 1906 | 4/25-9/15 | Harrisburg Senators | Tri-State League | , | |
| Evelyn Califf | califf001elm | 1906 | 62 g. | Portland Beavers | Pacific Coast League | , | |
| Jack Callahan | callah025--- | 1906 | 16 g. | Bridgeport Orators | Connecticut State League | , | |
| Jim Callahan | callah004jam | 1906 | 4/28-9/29 | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| John Callahan | callah004joh | 1906 | 5/2-7/3 | Muskogee Indians | South Central League | , | |
| Cameron | 1906 | San Francisco Orphans | California League | , | |||
| C. W. Cameron | 1906 | Umpire | Deleware | , | |||
| Don Cameron | camero003don | 1906 | 5/9-9/16 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Jack Cameron | camero001joh | 1906 | 8/15-9/7 | Lowell Tigers | New England League | , | |
| Jack Cameron | camero001joh | 1906 | 9/13-10/5 | Boston | National League | Boston, MA | |
| Jimmy Cameron | camero001jam | 1906 | +6/5+ | Marion | Interstate Association | , | |
| Jimmy Cameron | camero001jam | 1906 | +7/22-9/23 | Saginaw | Southern Michigan League | , | |
| Howie Camnitz | camnit001sam | 1906 | 4/18-9/16 | Toledo Mud Hens | American Association | , | |
| Howie Camnitz | camnit001sam | 1906 | 2 g. | Pittsburgh | National League | Pittsburgh, PA | |
| Count Campau | campau001cha | 1906 | 5/1-5/31 | Umpire | Eastern League | , | |
| Count Campau | campau001cha | 1906 | 7/13-9/15 | Umpire | Southern Association | , | |
| Campbell | 1906 | 6/25 | Sumter Game Cocks | South Carolina League | , | ||
| Campbell | 1906 | 6/29-7/7 | Manning | South Carolina League | , | ||
| Campbell | 1906 | Univ. Vermont | College | , | |||
| Campbell | 1906 | Olean Refiners | Interstate League | , | |||
| A. B. Campbell | 1906 | Oswego | Empire State League | , | |||
| Bill Campbell | campbe001wil | 1906 | 4/28-9/3 | Grays Harbor Lumbermen | Northwestern League | , | |
| Billy Campbell | campbe004wil | 1906 | 6/22-9/15 | Harrisburg Senators | Tri-State League | , | |
| C. A. Campbell | 1906 | Juneau | SEAlaska | , | |||
| Chester Campbell | campbe001che | 1906 | Stockton Millers | California League | , | ||
| Chester Campbell | campbe001che | 1906 | Sacramento Cordovas | California League | , | ||
| Frank Campbell | campbe001fra | 1906 | Olean Refiners | Interstate League | , | ||
| Freemont Campbell | 1906 | Juneau | SEAlaska | , | |||
| Jack Campbell | campbe005jac | 1906 | 8/27-9/3 | New Bedford Whalers | New England League | , | |
| Sullivan Campbell | campbe001sul | 1906 | 5/3-7/4 | Fort Scott Giants | Kansas State League | , | |
| Sullivan Campbell | campbe001sul | 1906 | 7/7-8/11 | Webb City Goldbugs | Western Association | , | |
| Sullivan Campbell | campbe001sul | 1906 | 8/21-9/8 | Independence Coyotes | Kansas State League | , | |
| Thomas Campbell | campbe002tho | 1906 | +5/9-6/26 | Bartlesville Indians | Kansas State League | , | |
| Thomas Campbell | campbe002tho | 1906 | 6/29-7/4 | Fort Scott Giants | Kansas State League | , | |
| Thomas Campbell | campbe002tho | 1906 | 7/5-7/9 | Parsons Preachers | Kansas State League | , | |
| Thomas Campbell | campbe002tho | 1906 | 7/12-9/15 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Thomas Campbell | 1906 | 150 g. | Sioux City Packers | Western League | , | ||
| Vin Campbell | campbe001art | 1906-08 | Vanderbilt Univ. | College | , | ||
| Jim Canavan | canava001jim | 1906 | 5/3-9/3 | New Bedford Whalers | New England League | , | |
| Winburn Cannell | cannel000win | 1906 | 7/12-7/25 | Lowell Tigers | New England League | , | |
| Wirt Cannell | cannel001vir | 1906 | 4/18-6/26 | Toledo Mud Hens | American Association | , | |
| Wirt Cannell | cannel001vir | 1906 | 7/2-9/21 | Toronto Maple Leafs | Eastern League | , | |
| Wirt Cannell | cannel001vir | 1906 | Cuban tour | , | |||
| George Cannon | cannon001elm | 1906 | 5/24-9/12 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | |
| Joe Cantillon | cantil001jos | 1906 | 4/18-9/17 | Milwaukee Brewers | American Association | , | |
| Cantley | 1906 | 7/5-7/7 | Sumter Game Cocks | South Carolina League | , | ||
| George Capron | capron001geo | 1906 | Shattuck Mili Acad | Academy | , | ||
| Arthur Carbiener | carbie001art | 1906 | , | ||||
| Cap Card | card--000cap | 1906 | , | ||||
| Carey | 1906 | 9/7-9/23 | Terre Haute Hottentots | Central League | , | ||
| George Carey | carey-002geo | 1906 | 4/12-9/15 | Memphis Egyptians | Southern Association | , | |
| Jim Carey | 1906 | Detroit-Indep | Amateur | , | |||
| Jim Carey | 1906 | 8/28-9/23 | Saginaw | Southern Michigan League | , | ||
| Chick Cargo | cargo-001cha | 1906 | 4/24-9/15 | New Orleans Pelicans | Southern Association | , | |
| Chick Cargo | cargo-001cha | 1906 | 9/19-9/23 | Troy Trojans | New York State League | , | |
| Fred Carisch | carisc001fre | 1906 | 4 g. | Pittsburgh | National League | Pittsburgh, PA | |
| Fred Carisch | carisc001fre | 1906 | 5/19-8/30 | Rochester Bronchos | Eastern League | , | |
| Walter Cariss | 1906 | U. of Pennsylvania | College | , | |||
| Walter Cariss | 1906 | 5/30-9/15 | Washington | Pennsylvania-Ohio-Maryland League | , | ||
| Thomas Carlin | carlin002tho | 1906 | 4/25-9/3 | Fort Worth Panthers | Texas League | , | |
| Walter Carlisle | carlis001wal | 1906 | 84 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Walter Carlisle | carlis001wal | 1906 | 35 g. | Los Angeles Angels | Pacific Coast League | , | |
| C. C. Carnes | carnes002c-- | 1906 | 5/14 | Denver Grizzlies | Western League | , | |
| C. C. Carnes | carnes002c-- | 1906 | 7/22 | Omaha Rourkes | Western League | , | |
| Jack Carney | carney002joh | 1906 | Sioux City Packers | Western League | , | ||
| Pat Carney | carney001pat | 1906-09 | Holy Cross Col. | College | , | ||
| Pat Carney | carney001pat | 1906 | +7/25-8/9+ | Rutland | Northern Independent League | , | |
| Pat Carney | carney001pat | 1906 | Rockville CT | Independent | , | ||
| Pat Carney | carney001pat | 1906 | 9 g. | Little Rock Travelers | Southern Association | , | |
| Pat Carney | carney001pat | 1906 | Nashville Volunteers | Southern Association | , | ||
| John Carolan | 1906 | No. Attleboro MA | Independent | , | |||
| John Carolan | 1906 | 6/22 | Worcester Busters | New England League | , | ||
| Fred Carpenter | 1906 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |||
| William Carpenter | 1906 | 146 g. | MLB Umpire | National League | , | ||
| Carr | 1906 | 6/22-6/23 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| Carr | 1906 | Penn Yan | Empire State League | , | |||
| Carr | 1906 | Geneva | Empire State League | , | |||
| Carr | 1906 | 9/9 | Leavenworth Old Soldiers | Western Association | , | ||
| Charlie Carr | carr--001cha | 1906 | 22 g. | Cincinnati | National League | Cincinnati, OH | |
| Charlie Carr | carr--001cha | 1906 | 5/10-9/9 | Indianapolis Indians | American Association | , | |
| James Carr | 1906 | Sparta IL | Independent | , | |||
| James Carr | 1906 | 8/20-9/21 | Webb City Goldbugs | Western Association | , | ||
| John Carr | carr--003joh | 1906 | 4/18-7/13 | Indianapolis Indians | American Association | , | |
| John Carr | carr--003joh | 1906 | 7/17-8/19 | Springfield Babes | Central League | , | |
| Lew Carr | carr--001lew | 1906 | 5/10-9/15 | Scranton Miners | New York State League | , | |
| Sidney Carr | carr--001sid | 1906 | Oswego | Empire State League | , | ||
| Bill Carrick | carric001wil | 1906 | 4/26-9/19 | Newark Sailors | Eastern League | , | |
| Bill Carrigan | carrig001wil | 1906 | Holy Cross Col. | College | , | ||
| Bill Carrigan | carrig001wil | 1906 | Rutland | Northern Independent League | , | ||
| Bill Carrigan | carrig001wil | 1906 | 7/7- | 37 g. | Boston | American League | Boston, MA |
| Frank Carriveau | carriv001fra | 1906 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Frank Carriveau | carriv001fra | 1906 | 6/18 | Evansville River Rats | Central League | , | |
| Frank Carriveau | carriv001fra | 1906 | 6/25-7/15 | South Bend Greens | Central League | , | |
| Frank Carriveau | carriv001fra | 1906 | Plymouth | Independent | , | ||
| Frank Carriveau | carriv001fra | 1906 | 8/9-8/12 | Wilkes-Barre Barons | New York State League | , | |
| Dick Carroll | carrol003ric | 1906 | Clev.-Tellings | Independent | , | ||
| Dick Carroll | carrol003ric | 1906 | 5/31- | 7 g. | New Castle Outlaws | Ohio-Pennsylvania League | , |
| Dick Carroll | carrol003ric | 1906 | 61/7-9/17 | Canton Chinamen | Central League | , | |
| Frank Carroll | carrol001fra | 1906 | Manhattan College | College | , | ||
| Frank Carroll | carrol001fra | 1906 | 4/27-6/2 | Haverhill Hustlers | New England League | , | |
| Frank Carroll | carrol001fra | 1906 | Burlington | Northern Independent League | , | ||
| Frank Carroll | carrol001fra | 1906 | 9/13-9/15 | Wilkes-Barre Barons | New York State League | , | |
| Jack Carroll | 1906 | +5/18-6/18+ | Saginaw | Interstate Association | , | ||
| Jack Carroll | 1906 | +7/22-8/22+ | Jackson Convicts | Southern Michigan League | , | ||
| Jack Carroll | 1906 | +9/7-9/23+ | Saginaw | Southern Michigan League | , | ||
| William Carroll | 1906 | 5/12-6/14 | Albany Senators | New York State League | , | ||
| Andy Carson | 1906 | Marietta OH | Independent | , | |||
| Andy Carson | 1906 | 5/28-6/4 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Andy Carson | 1906 | 6/27-7/2 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Andy Carson | 1906 | 7/16-8/1 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Thomas Carson | carson002tho | 1906 | 120 g. | Augusta Tourists | South Atlantic League | , | |
| Thomas Carson | carson002tho | 1906 | 31 g. | Portland Beavers | Pacific Coast League | , | |
| Bobby Carter | carter003rob | 1906 | 5/2- | 90 g. | Omaha Rourkes | Western League | , |
| Bobby Carter | carter003rob | 1906 | 8/16-9/15 | Memphis Egyptians | Southern Association | , | |
| Charles Carter | carter005cha | 1906 | 5/11-9/8 | Lynchburg Shoemakers | Virginia League | , | |
| Curtis Carter | carter004cha | 1906 | 5/5- | Parsons Preachers | Kansas State League | , | |
| Curtis Carter | carter004cha | 1906 | 7/7-7/11 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Lee Carter | carter001lee | 1906 | 4/30-5/14 | Galveston Sand Crabs | South Texas League | , | |
| Nick Carter | carter002con | 1906 | 5/10-9/22 | Syracuse Stars | New York State League | , | |
| Walter Cartwright | cartwr001wal | 1906 | 162 g. | Fresno Raisin Eaters | Pacific Coast League | , | |
| Bob Caruthers | caruth001bob | 1906 | Umpire | Illinois-Indiana-Iowa League | , | ||
| Chick Carven | 1906 | +5/23+ | Cleary Business | College | , | ||
| Chick Carven | 1906 | +9/19+ | Charlotte MI | Independent | , | ||
| Charlie Case | case--001cha | 1906 | -4/29 | 2 g. | Pittsburgh | National League | Pittsburgh, PA |
| Charlie Case | case--001cha | 1906 | 6/7-9/21 | Rochester Bronchos | Eastern League | , | |
| Casey | 1906 | 5/30 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Frank Casey | casey-001fra | 1906 | 5/3-5/6 | Independence Coyotes | Kansas State League | , | |
| James Casey | casey-002jam | 1906 | 149 g. | Brooklyn | National League | Brooklyn, NY | |
| Joe Casey | casey-002jos | 1906-09 | Boston College | College | , | ||
| Joe Casey | casey-002jos | 1906 | 5/29 | Lowell Tigers | New England League | , | |
| Patrick Casey | casey-001pat | 1906 | 5/4-6/12 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Patrick Casey | casey-001pat | 1906 | 6/14-9/23 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Pearl Casey | casey-001pea | 1906 | Fresno Raisin Eaters | Pacific Coast League | , | ||
| Harry Cassady | cassad001har | 1906 | 4/18-9/16 | Kansas City Blues | American Association | , | |
| Charles Cassell | 1906 | 5/26-5/31 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Howdy Cassiboine | cassib001how | 1906 | 5/19-9/3 | Houghton Giants | Northern-Copper Country League | , | |
| Benny Cassidy | cassid001ber | 1906 | 4/27-5/24 | Fall River Indians | New England League | , | |
| F. Cassidy | 1906 | 5/3-6/28+ | Coffeyville Bricks | Kansas State League | , | ||
| F. Cassidy | 1906 | 5/3-6/28+ | Coffeyville Bricks | Kansas State League | , | ||
| Michael Cassidy | cassid002mic | 1906 | 4/19 | Macon Brigands | South Atlantic League | , | |
| Michael Cassidy | cassid002mic | 1906 | 5/3-5/17 | Valdosta Stars | Georgia State League | , | |
| Michael Cassidy | cassid002mic | 1906 | 5/25-8/15 | Roanoke Tigers | Virginia League | , | |
| Michael Cassidy | cassid002mic | 1906 | 8/25-9/8 | Richmond Colts | Virginia League | , | |
| Pete Cassidy | cassid003pet | 1906 | 4/26-9/23 | Jersey City Skeeters | Eastern League | , | |
| Benjamin Castle | castle001ben | 1906 | 4/29-8/10 | Canton Chinamen | Central League | , | |
| Benjamin Castle | castle001ben | 1906 | 8/12-9/23 | Terre Haute Hottentots | Central League | , | |
| John Castle | castle001joh | 1906 | 4/26-9/8 | Bridgeport Orators | Connecticut State League | , | |
| Roy Castleton | castle002roy | 1906 | 41 g. | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Lou Castro | castro001lou | 1906 | 4/16-8/18 | Nashville Volunteers | Southern Association | , | |
| Lou Castro | castro001lou | 1906 | 8/21-9/15 | Birmingham Barons | Southern Association | , | |
| Eli Cates | cates-002eli | 1906 | Oakland Oaks | Pacific Coast League | , | ||
| James Catiz | 1906 | 7/14-8/1 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| James Catiz | 1906 | +9/1+ | Balt.-B&O | Independent | , | ||
| John Cavanaugh | 1906 | +8/25+ | Hornell/Patton Pigmies | Interstate League | , | ||
| Michael Cavanaugh | cavana003mic | 1906 | 128 g. | Galveston Sand Crabs | South Texas League | , | |
| Michael Cavanaugh | cavana003mic | 1906 | 9/6-9/23 | Leavenworth Old Soldiers | Western Association | , | |
| Mike Cavanaugh | 1906 | 5/24-6/11 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Mike Cavanaugh | 1906 | Buff.-Pastimes | Independent | , | |||
| Cave | 1906-07 | +5/8+ | Univ. Kansas | College | , | ||
| Dred Cavender | cavend001dre | 1906 | 4/25-9/3 | Fort Worth Panthers | Texas League | , | |
| Herbert Cawthorn | cawtho000her | 1906 | 6/11-7/4 | Albany | Georgia State League | , | |
| Ed Cermak | cermak001edw | 1906 | 119 g. | Galveston Sand Crabs | South Texas League | , | |
| Ed Cermak | cermak001edw | 1906 | Austin Senators | South Texas League | , | ||
| Chet Chadbourne | chadbo001che | 1906 | 5/14-9/7 | Worcester Busters | New England League | , | |
| Chet Chadbourne | chadbo001che | 1906 | 9/17- | 11 g. | Boston | American League | Boston, MA |
| Mark Chaffee | 1906 | 5/3-5/18+ | Muncie Fruit Jars | Interstate Association | , | ||
| Mark Chaffee | 1906 | +6/7-7/6+ | Mount Clemens Bathers | Southern Michigan League | , | ||
| Mark Chaffee | 1906 | Paw Paw MI | Independent | , | |||
| Brownie Chamberlain | chambe001c-- | 1906 | Douglas Ariz | Independent | , | ||
| Boyd Chambers | 1906 | 5/26- | 27 g. | Springfield Babes | Central League | , | |
| Chuck Chandler | chandl001cha | 1906 | 7/10-7/28 | Grand Forks Forkers | Northern-Copper Country League | , | |
| Chuck Chandler | chandl001cha | 1906 | GraF-Pickets | Independent | , | ||
| Robert Chandler | chandl002rob | 1906 | 4/16-9/3 | Macon Brigands | South Atlantic League | , | |
| Charles Chapman | chapma001cha | 1906 | , | ||||
| Robert Chappelle | chappe001rob | 1906 | 5/10-8/23 | Scranton Miners | New York State League | , | |
| William Chappelle | chappe002wil | 1906 | 4/26-6/14 | Harrisburg Senators | Tri-State League | , | |
| William Chappelle | chappe002wil | 1906 | 6/21-8/4 | Altoona Mountaineers | Tri-State League | , | |
| William Chappelle | chappe002wil | 1906 | 8/7-9/4 | Lancaster Red Roses | Tri-State League | , | |
| William Chappelle | chappe002wil | 1906 | 9/10-9/15 | Johnstown Johnnies | Tri-State League | , | |
| Raymond Charles | charle002ray | 1906 | 4/25-9/15 | Williamsport Millionaires | Tri-State League | , | |
| Thomas Charles | 1906 | +5/13-5/21+ | Tulsa Oilers | South Central League | , | ||
| Thomas Charles | 1906 | +5/26-5/27+ | Guthrie Senators | South Central League | , | ||
| Tom Charles | 1906 | Guthrie Senators | South Central League | , | |||
| Wilson Charles | charle001wil | 1906 | 31 g. | Green Bay Colts | Wisconsin State League | , | |
| Wilson Charles | 1906 | 31 g. | Green Bay Colts | Wisconsin State League | , | ||
| Peyton Charters | charte001pey | 1906 | 4/27-5/14 | Lynchburg Shoemakers | Virginia League | , | |
| Peyton Charters | charte001pey | 1906 | 5/18-7/5 | Danville Red Sox | Virginia League | , | |
| Hal Chase | chase-002har | 1906 | 151 g. | New York | American League | New York, NY | |
| J. C. Chase | 1906 | 75 g. | Oskaloosa Quakers | Iowa League | , | ||
| J. C. Chase | 1906 | Boone/Clinton Miners | Iowa League | , | |||
| J. C. Chase | 1906 | Waterloo Microbes | Iowa League | , | |||
| Emile Chastant | 1906 | +5/9+ | New Roads LA | Independent | , | ||
| George Chayka | 1906 | Moline-Muscatine | Independent | , | |||
| Charlie Chech | chech-001cha | 1906 | 11 g. | Cincinnati | National League | Cincinnati, OH | |
| Charlie Chech | chech-001cha | 1906 | 7/13-9/16 | Toledo Mud Hens | American Association | , | |
| Harry Cheek | cheek-001har | 1906 | 5/4-9/23 | Webb City Goldbugs | Western Association | , | |
| William Chenault | chenau001wil | 1906 | 60 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| William Chenault | chenau001wil | 1906 | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | ||
| Laurence Cheney | cheney001lau | 1906 | 5/4-6/17 | Bartlesville Indians | Kansas State League | , | |
| Laurence Cheney | cheney001lau | 1906 | 7/21 | Topeka White Sox | Western Association | , | |
| Laurence Cheney | cheney001lau | 1906 | 7/25- | 26 g, | Bartlesville Indians | Kansas State League | , |
| Chenry | 1906 | Camden | South Carolina League | , | |||
| William Cherry | cherry000bil | 1906 | FtWa-Shamrocks | Independent | , | ||
| Joseph Chevalier | 1906 | 3 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Joseph Chevalier | 1906 | 3 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Joseph Chevalier | 1906 | KY Colonels | Independent | , | |||
| Guy Chiesman | 1906 | +9/7+ | Coldwater MI | Independent | , | ||
| Guy Chiesman | 1906 | +9/14-9/23 | Jackson Convicts | Southern Michigan League | , | ||
| Bruce Chilcott | 1906 | Phil.-Professionals | Independent | , | |||
| Louis Childs | childs002lou | 1906 | 4/11-5/7 | Atlanta Crackers | Southern Association | , | |
| Louis Childs | childs002lou | 1906 | 6/28-9/5 | Atlanta Crackers | Southern Association | , | |
| Pete Childs | childs001geo | 1906 | 5/11-6/4 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Pete Childs | childs001geo | 1906 | 7/12-9/23 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Thomas Chinn | chinn-001tho | 1906 | 4/14-6/7 | Little Rock Travelers | Southern Association | , | |
| Thomas Chinn | chinn-001tho | 1906 | 6/16-7/4 | Nashville Volunteers | Southern Association | , | |
| Choteau | 1906 | Pittsburg/Vinita Champs | Kansas State League | , | |||
| John Christian | christ003j-- | 1906 | Augusta Tourists | South Atlantic League | , | ||
| John Christian | christ003j-- | 1906 | 4/29 | Terre Haute Hottentots | Central League | , | |
| John Christian | christ003j-- | 1906 | Cairo Giants | Kentucky-Illinois-Tennessee League | , | ||
| John Christian | christ003j-- | 1906 | 6/12 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| John Christian | christ003j-- | 1906 | 6/21-8/29 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| John Christian | christ003j-- | 1906 | 8/27-8/29 | Evansville River Rats | Central League | , | |
| John Christian | christ003j-- | 1906 | 9/3-9/5 | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| John Christian | christ003j-- | 1906 | Umpire | Illinois-Indiana-Iowa League | , | ||
| Harold Christman | christ005har | 1906 | 40 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | |
| Harry Church | 1906 | +5/18-5/24+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| Harry Church | 1906 | +6/11+ | Jackson Convicts | Southern Michigan League | , | ||
| Eddie Cicotte | cicott001edw | 1906 | 4/21-6/2 | Indianapolis Indians | American Association | , | |
| Eddie Cicotte | cicott001edw | 1906 | 6/13-9/29 | Des Moines Champs | Western League | , | |
| Claire | 1906 | 8/4 | Tacoma Tigers | Northwestern League | , | ||
| Daniel Claire | 1906 | 65 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Bill Clancy | clancy002wil | 1906 | 4/26-9/22 | Rochester Bronchos | Eastern League | , | |
| Charles Clancy | clancy001cha | 1906 | 5/12 | New Bedford Whalers | New England League | , | |
| Charles Clancy | clancy001cha | 1906 | 5/31 | New Haven Blues | Connecticut State League | , | |
| Charles Clancy | clancy001cha | 1906 | 6/5-6/12 | Hartford Senators | Connecticut State League | , | |
| Charles Clancy | clancy001cha | 1906 | Rutland | Northern Independent League | , | ||
| Charles Clancy | clancy001cha | 1906 | 7/28-8/6 | Newark Sailors | Eastern League | , | |
| Clark | 1906 | 7/11 | Binghamton Bingoes | New York State League | , | ||
| Dad Clark | clark-002alf | 1906 | 4/12-6/13 | Shreveport Pirates | Southern Association | , | |
| Dick Clark | clark-001ric | 1906 | 5/1 | Houston Buffaloes | South Texas League | , | |
| Dick Clark | clark-001ric | 1906 | 5/10-6/24 | Fort Worth Panthers | Texas League | , | |
| Dick Clark | clark-001ric | 1906 | 7/6-9/2 | Dallas Giants | Texas League | , | |
| George Clark | clark-002geo | 1906 | 4/27-9/8 | Lynn Shoemakers | New England League | , | |
| Ginger Clark | clark-006har | 1906 | 4/12-9/3 | Birmingham Barons | Southern Association | , | |
| Harry Clark | clark-004har | 1906 | 4/18-9/16 | Milwaukee Brewers | American Association | , | |
| Herbert Clark | 1906 | 5/3-5/15 | Fall River Indians | New England League | , | ||
| James Clark | 1906 | Erie Sailors | Interstate League | , | |||
| James Clark | 1906 | Punxsutawney Policemen | Interstate League | , | |||
| James Clark | 1906 | 60 g. | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| Jefferson Clark | 1906 | 1 g. | San Francisco Seals | Pacific Coast League | , | ||
| John Clark | clark-001jl- | 1906 | 4/20-5/14 | Jacksonville Jays | South Atlantic League | , | |
| John Clark | clark-001jl- | 1906 | 5/19-8/30 | Macon Brigands | South Atlantic League | , | |
| John Clark | clark-001jl- | 1906 | Hot Springs Vapors | Arkansas-Texas League | , | ||
| Leroy Clark | clark-001ler | 1906 | 4/28-9/25 | Springfield Babes | Central League | , | |
| Lester Clark | clark-002les | 1906 | 4/12-7/6 | Memphis Egyptians | Southern Association | , | |
| Lester Clark | clark-002les | 1906 | 16 g. | Galveston Sand Crabs | South Texas League | , | |
| Roy Clark | 1906 | +7/19-7/22+ | Houghton Giants | Northern-Copper Country League | , | ||
| Roy Clark | 1906 | 26 g. | Calumet Aristocrats | Northern-Copper Country League | , | ||
| Talton Clark | clark-001tal | 1906 | 5/15-8/26+ | Bartlesville Indians | Kansas State League | , | |
| Wilkie Clark | clark-001wil | 1906 | 5/10-9/22 | Scranton Miners | New York State League | , | |
| William Clark | clark-016wil | 1906 | Williamstown | Southern New Jersey | , | ||
| Win Clark | clark-012wil | 1906 | 4/26-9/8 | Norfolk Tars | Virginia League | , | |
| Jay Clarke | clarke001jay | 1906 | 57 g. | Cleveland | American League | Cleveland, OH | |
| Jefferson Clarke | 1906 | Clinton College | College | , | |||
| Jefferson Clarke | 1906 | 45 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Jefferson Clarke | 1906 | Alexandria LA | Independent | , | |||
| Josh Clarke | clarke002jos | 1906 | 4/28-9/16 | Toledo Mud Hens | American Association | , | |
| William Clarke | clarke004wil | 1906 | 4/18-9/16 | Toledo Mud Hens | American Association | , | |
| Walter Clarkson | clarks001wal | 1906 | 32 g. | New York | American League | New York, NY | |
| Bill Clay | clay--002fre | 1906 | 4/25-7/11 | York Penn Parks | Tri-State League | , | |
| Bill Clay | clay--002fre | 1906 | 7/12-7/18 | Harrisburg Senators | Tri-State League | , | |
| Bill Clay | clay--002fre | 1906 | 7/24-9/15 | York Penn Parks | Tri-State League | , | |
| Waldo Clay | clay--001wal | 1906 | 5/14-9/21 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Clayton | 1906 | 7/14-7/31 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Clayton | 1906 | +8/4+ | Balt.-Stars | Independent | , | ||
| Clayton | 1906 | Ottumwa Champs | Iowa League | , | |||
| Harry Clayton | clayto001har | 1906 | 4/25-9/3 | Fort Worth Panthers | Texas League | , | |
| William Clayton | clayto001wil | 1906 | 4/26-4/27 | Cleburne Railroaders | Texas League | , | |
| William Clayton | clayto001wil | 1906 | 118 g. | Houston Buffaloes | South Texas League | , | |
| Arthur Cleary | 1906 | Auburn | Empire State League | , | |||
| James Cleary | cleary001jam | 1906 | 4/26-7/10 | Rochester Bronchos | Eastern League | , | |
| James Cleary | cleary001jam | 1906 | 8/17-9/19 | Rochester Bronchos | Eastern League | , | |
| Ben Clegg | clegg-001ben | 1906 | Louisv.-Glenwoods | Independent | , | ||
| Amanda Clement | 1906 | Umpire | , | ||||
| Wally Clement | clemen001wal | 1906 | 4/26-9/23 | Jersey City Skeeters | Eastern League | , | |
| Kelly Clever | 1906 | 95 g. | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Jesse Clifton | 1906 | 5/5-5/6 | Coffeyville Bricks | Kansas State League | , | ||
| Roland Clifton | 1906 | 5/8 | Coffeyville Bricks | Kansas State League | , | ||
| Cline | 1906 | 7/14-7/16 | Binghamton Bingoes | New York State League | , | ||
| Cline | 1906 | 5/25 | Fort Scott Giants | Kansas State League | , | ||
| Billy Clingman | clingm001wil | 1906 | 6/30-9/15 | Toledo Mud Hens | American Association | , | |
| Bill Clymer | clymer001wil | 1906 | 6/10-9/15 | Columbus Senators | American Association | , | |
| Otis Clymer | clymer001oti | 1906 | 11 g. | Pittsburgh | National League | Pittsburgh, PA | |
| John Clynes | clynes001jos | 1906 | 4/28-9/3 | Tacoma Tigers | Northwestern League | , | |
| John Clynes | clynes001jos | 1906 | 10/7 | Woodland CA | Independent | , | |
| John Clynes | clynes001jos | 1906 | San Francisco Orphans | California League | , | ||
| Joseph Clynes | clynes001jos | 1906 | Presidio Soldiers | California State League | , | ||
| Joseph Clynes | clynes001jos | 1906 | Presidio Soldiers | California State League | , | ||
| Andy Coakley | coakle001and | 1906 | 22 g. | Philadelphia | American League | Philadelphia, PA | |
| Floyd Coates | coates001f-- | 1906 | +5/10+ | Oskaloosa Quakers | Iowa League | , | |
| Cobb | 1906 | +5/4-6/17+ | Shawnee Blues | South Central League | , | ||
| George Cobb | 1906 | 6/21-9/8 | Lowell Tigers | New England League | , | ||
| Ty Cobb | cobb--001tyr | 1906 | 98 g. | Detroit | American League | Detroit, MI | |
| Samuel Cobean | cobean001sam | 1906 | no g. | Syracuse Stars | New York State League | , | |
| Samuel Cobean | cobean001sam | 1906 | Poughkeepsie Colts | Hudson River League | , | ||
| Samuel Cobean | cobean001sam | 1906 | +6/4-8/15+ | Oswego | Empire State League | , | |
| Samuel Cobean | cobean001sam | 1906 | 7/29 | Utica Pent-Ups | New York State League | , | |
| John Cocash | 1906 | +6/28-8/6+ | Mount Clemens Bathers | Southern Michigan League | , | ||
| John Cocash | 1906 | 8/15- | Jackson Convicts | Southern Michigan League | , | ||
| George Cockill | cockil002geo | 1906 | 5/10-9/23 | Albany Senators | New York State League | , | |
| Jim Cockman | cockma001jam | 1906 | 4/26-9/21 | Newark Sailors | Eastern League | , | |
| Charles Coe | coe---002cha | 1906 | 113 g. | Fort Dodge Gypsumites | Iowa League | , | |
| Edward Coffey | coffey001edw | 1906 | 5/4-6/3 | Umpire | Central League | , | |
| Edward Coffey | coffey001edw | 1906 | 6/5-9/23 | Terre Haute Hottentots | Central League | , | |
| Henry Coffin | 1906 | Dartmouth Col | College | , | |||
| Henry Coffin | 1906 | 8/29-9/7 | New Bedford Whalers | New England League | , | ||
| Dick Cogan | cogan-001dic | 1906 | Paterson Intruders | Hudson River League | , | ||
| Coggins | coggin008--- | 1906 | 7/18-8/1 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Charles Cogswell | cogswe003cha | 1906 | 4/27-5/5 | Wheeling Stogies | Central League | , | |
| Charles Cogswell | cogswe003cha | 1906 | 5/10-9/25 | Evansville River Rats | Central League | , | |
| Coil | 1906 | 5/19 | Guthrie Senators | South Central League | , | ||
| Clarence Cole | cole--002cla | 1906 | 5/5-9/23 | Topeka White Sox | Western Association | , | |
| Willis Cole | cole--006wil | 1906 | Erie Sailors | Interstate League | , | ||
| Curtis Coleman | 1906 | Willamette OR | Independent | , | |||
| Curtis Coleman | 1906 | Portland Beavers | Pacific Coast League | , | |||
| Cad Coles | coles-001cad | 1906 | 6/11-8/18 | Sumter Game Cocks | South Carolina League | , | |
| Edgar Colgrove | 1906 | 49 g. | Lake Charles Creoles | South Texas League | , | ||
| Colina | 1906 | 4/28-5/25 | Danville Red Sox | Virginia League | , | ||
| Collier | 1906 | +3/24+ | Alabama Normal | College | , | ||
| Collier | 1906 | 5/9 | Albany | Georgia State League | , | ||
| Edward Colligan | collig001edw | 1906 | St. Bonaventure | College | , | ||
| Edward Colligan | collig001edw | 1906 | Olean Refiners | Interstate League | , | ||
| Collins | 1906 | 4/20-5/1 | Columbia Gamecocks | South Atlantic League | , | ||
| Collins | 1906 | 8/13-8/18 | Orangeburg | South Carolina League | , | ||
| Collins | 1906 | 5/4-5/5 | Muskogee Indians | South Central League | , | ||
| Collins | 1906 | Sacramento Cordovas | California League | , | |||
| Collins | 1906 | Springfield Babes | Central League | , | |||
| Collins | 1906 | 5/13 | Bartlesville Indians | Kansas State League | , | ||
| Ed Collins | 1906 | Hornell/Patton Pigmies | Interstate League | , | |||
| Eddie Collins | collin003edw | 1906 | +7/2-7/19 | Plattsburgh | Northern Independent League | , | |
| Eddie Collins | collin003edw | 1906 | +7/25-8/9+ | Rutland | Northern Independent League | , | |
| Eddie Collins | collin003edw | 1906 | Rockville CT | Independent | , | ||
| Eddie Collins | collin003edw | 1906 | 9/17- | 6 g. | Philadelphia | American League | Philadelphia, PA |
| Edward Collins | collin002e-- | 1906 | 5/2- | 98 g. | Lincoln Ducklings | Western League | , |
| Hugh Collins | collin001h-- | 1906 | 9/1-9/22 | Springfield Babes | Central League | , | |
| Joseph Collins | collin002jos | 1906 | 4/27-9/25 | Springfield Babes | Central League | , | |
| Joseph Collins | collin005jos | 1906 | Santa Clara Col. | College | , | ||
| Joseph Collins | collin005jos | 1906 | San Jose Prune Pickers | California League | , | ||
| Joseph Collins | collin005jos | 1906 | 5/9-8/26 | Tacoma Tigers | Northwestern League | , | |
| Orth Collins | collin001ort | 1906 | 4/26-5/30 | Grand Rapids Wolverines | Central League | , | |
| Orth Collins | collin001ort | 1906 | 6/- | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| Orth Collins | collin001ort | 1906 | 79 g. | Jackson Senators | Cotton States League | , | |
| Orth Collins | collin001ort | 1906 | Gulfport Crabs | Cotton States League | , | ||
| Ray Collins | collin001ray | 1906-09 | Univ. Vermont | College | , | ||
| Robert Collins | collin002rob | 1906 | 60 g. | Independence Coyotes | Kansas State League | , | |
| S. A. Collins | collin002e-- | 1906 | 4/25-7/7+ | Umpire | Texas League | , | |
| S. A. Collins | collin002e-- | 1906 | Umpire | South Texas League | , | ||
| Collister | 1906 | Oswego | Empire State League | , | |||
| Jim Collopy | collop001jam | 1906 | Kane Mountaineers | Interstate League | , | ||
| Carl Comingor | 1906 | +5/9-10+ | Muncie Fruit Jars | Interstate Association | , | ||
| Marshall Comingor | 1906 | +5/10+ | Muncie Fruit Jars | Interstate Association | , | ||
| Marshall Comingor | 1906 | 9/21 | Dayton Veterans | Central League | , | ||
| Paul Companion | compan001pau | 1906 | 5/4-7/26 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Paul Companion | compan001pau | 1906 | 7/28-9/9 | Topeka White Sox | Western Association | , | |
| Harry Compton | compto001har | 1906 | 33 g. | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Edward Conahan | 1906 | 4/26-9/23 | Umpire | Eastern League | , | ||
| Robert Conaway | conawa001rob | 1906 | 5/12-9/18 | Evansville River Rats | Central League | , | |
| William Condon | condon000bil | 1906 | Helena-Elks | Independent | , | ||
| James Conevery | conave001j-- | 1906 | +7/2-7/11+ | Geneva | Empire State League | , | |
| Bunk Congalton | congal001wil | 1906 | 117 g. | Cleveland | American League | Cleveland, OH | |
| Earl Congo | 1906 | Terre Haute Hottentots | Central League | , | |||
| Charles Conklin | conkli002cha | 1906 | Indi.-Reserves | Independent | , | ||
| Edward Conmy | 1906 | U NDLaw | College | , | |||
| Edward Conmy | 1906 | grad. 07 | , | ||||
| John Conmy | conmy-000chi | 1906 | +5/17+ | U. North Dakota | College | , | |
| John Conmy | conmy-000chi | 1906 | +5/23-6/4+ | Grand Forks Forkers | Northern-Copper Country League | , | |
| John Conmy | conmy-000chi | 1906 | +6/15-7/24+ | Pembina ND | Independent | , | |
| John Conmy | conmy-000chi | 1906 | U NDLaw | College | , | ||
| Bert Conn | conn--001alb | 1906 | 4/25-9/15 | York Penn Parks | Tri-State League | , | |
| Bert Conn | conn--001alb | 1906 | Long Branch NJ | Independent | , | ||
| Connaughton | 1906 | <10 5/3- | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| Frank Connaughton | connau001fra | 1906 | 5/1- | Lawrence Colts | New England League | , | |
| Frank Connaughton | connau001fra | 1906 | -9/8 | Haverhill Hustlers | New England League | , | |
| Frank Connaughton | connau001fra | 1906 | -10/5 | 12 g. | Boston | National League | Boston, MA |
| Jerry Connell | connel001jer | 1906 | 4/26-9/8 | New Haven Blues | Connecticut State League | , | |
| Ralph Connell | connel039--- | 1906 | 5/9-9/9 | Parsons Preachers | Kansas State League | , | |
| Florence Connelly | connel000flo | 1906 | NYC-semi-pro | Independent | , | ||
| Harry Connelly | connel001har | 1906 | 7/4-7/20 | New London Whalers | Connecticut State League | , | |
| Harry Conner | 1906 | 4/28 | Hartford Senators | Connecticut State League | , | ||
| James Conner | 1906 | 87 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | ||
| Robert Connery | conner001rob | 1906 | 5/3-6/22 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| D. B. Connett | connet001d-- | 1906 | Macon Brigands | South Atlantic League | , | ||
| Patrick Connolly | connol001pat | 1906 | 4/27-9/7 | Haverhill Hustlers | New England League | , | |
| Jim Connor | connor001jim | 1906 | 4/26-6/9 | Montreal Royals | Eastern League | , | |
| Jim Connor | connor001jim | 1906 | 6/20-7/11 | Toronto Maple Leafs | Eastern League | , | |
| Joe Connor | connor002jos | 1906 | 4/26-9/23 | Montreal Royals | Eastern League | , | |
| John Connor | connor001joh | 1906 | 453 ab | Kingston Colonials | Hudson River League | , | |
| John Connor | connor001joh | 1906 | Newburgh Hill Climbers | Hudson River League | , | ||
| Joseph Connor | 1906 | Lawton OK | Independent | , | |||
| Joseph Connor | 1906 | 9/1-9/2 | Fort Worth Panthers | Texas League | , | ||
| Joseph Connor | 1906 | Lawton OK | Independent | , | |||
| Thomas Connor | 1906 | - 7/19 | 81 g. | MLB Umpire | American League | , | |
| Thomas Connor | 1906 | 8/9-9/15 | Umpire | Tri-State League | , | ||
| Connors | connor002joh | 1906 | +4/30-9/23 | South Bend Greens | Central League | , | |
| Bill Connors | connor001wil | 1906 | 5/3-9/16 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Bill Connors | connor002wil | 1906 | 4/27- | Lynn Shoemakers | New England League | , | |
| Bill Connors | connor002wil | 1906 | -9/4 | Worcester Busters | New England League | , | |
| Ed Connors | connor002edw | 1906 | 5/10-8/12 | Wilkes-Barre Barons | New York State League | , | |
| Ed Connors | connor002edw | 1906 | 9/6-9/15 | Albany Senators | New York State League | , | |
| Ed Connors | connor018--- | 1906 | 29 g. | Green Bay Colts | Wisconsin State League | , | |
| Joe Conroy | conroy000joe | 1906 | preseason | Charleston Sea Gulls | South Atlantic League | , | |
| Joe Conroy | conroy000joe | 1906 | 4/30-7/13 | Portsmouth Truckers | Virginia League | , | |
| Joe Conroy | conroy000joe | 1906 | 7/17 | Lynchburg Shoemakers | Virginia League | , | |
| Martin Conroy | 1906 | 9/15-9/21 | Troy Trojans | New York State League | , | ||
| Michael Conroy | 1906 | no g. | Akron Rubbernecks | Ohio-Pennsylvania League | , | ||
| Michael Conroy | 1906 | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |||
| Pat Conroy | conroy001pat | 1906 | 4/27-6/27 | Hartford Senators | Connecticut State League | , | |
| Leroy Converse | conver001ler | 1906 | Woodstock IL | Independent | , | ||
| Leroy Converse | conver001ler | 1906 | 5/6-6/10 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Leroy Converse | conver001ler | 1906 | Ottumwa Champs | Iowa League | , | ||
| Conway | 1906 | 8/17 | Manning | South Carolina League | , | ||
| John Conway | 1906 | 4/12-10/4 | MLB Umpire | National League | , | ||
| Dan Coogan | coogan003dan | 1906 | Penn? | , | |||
| Dan Coogan | coogan003dan | 1906 | 6/15-7/14 | Nashville Volunteers | Southern Association | , | |
| Dan Coogan | coogan003dan | 1906 | 7/27-9/22 | Wilkes-Barre Barons | New York State League | , | |
| Cook | 1906 | +4/30+ | Terre Haute Hottentots | Central League | , | ||
| Frederick Cook | 1906-14 | , | |||||
| Jim Cook | cook--002jam | 1906 | 5/2- | 143 g. | Pueblo Indians | Western League | , |
| Louis Cook | cook--002lou | 1906 | no g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Louis Cook | cook--002lou | 1906 | DePauw Univ. | College | , | ||
| Louis Cook | cook--002lou | 1906 | 6/?- | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Cab Cooke | cook--002c-- | 1906 | 4/26-9/8 | Lynchburg Shoemakers | Virginia League | , | |
| Duff Cooley | cooley001duf | 1906 | 5/7-9/22 | Topeka White Sox | Western Association | , | |
| Mel Cooley | cooley001mel | 1906 | 5/1-6/6 | Guthrie Senators | South Central League | , | |
| Mel Cooley | cooley001mel | 1906 | 6/10-8/7 | Fort Smith Razorbacks | South Central League | , | |
| William Cooley | cooley001wil | 1906 | 4/12-5/31 | Memphis Egyptians | Southern Association | , | |
| William Cooley | cooley001wil | 1906 | +7/5-7/27 | Terre Haute Hottentots | Central League | , | |
| William Cooley | cooley001wil | 1906 | +8/3-9/13+ | South Bend Greens | Central League | , | |
| Cecil Coombs | 1906 | 9 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| Jack Coombs | coombs001joh | 1906 | 7/5- | 24 g. | Philadelphia | American League | Philadelphia, PA |
| Cooner | 1906 | 6/13 | Camden | South Carolina League | , | ||
| Cooner | 1906 | 6/15-6/30 | Manning | South Carolina League | , | ||
| Bill Cooney | cooney001wil | 1906 | 8/22 | Lowell Tigers | New England League | , | |
| Edward Cooney | cooney001edw | 1906 | 269 ab | Hudson Marines | Hudson River League | , | |
| Phil Cooney | cooney001phi | 1906 | 4/27-5/2 | Grand Rapids Wolverines | Central League | , | |
| Phil Cooney | cooney001phi | 1906 | Paterson Intruders | Hudson River League | , | ||
| Lester Coons | coons-001l-- | 1906 | no g. | Marshalltown Brownies | Iowa League | , | |
| Cooper | 1906 | 9/7-9/19 | Webb City Goldbugs | Western Association | , | ||
| Cooper | 1906 | +4/27+ | Holyoke Paperweights | Connecticut State League | , | ||
| E. G. Cooper | 1906 | Grand Forks Forkers | Northern-Copper Country League | , | |||
| Frank Cooper | cooper001ike | 1906 | 4/30-8/6 | South McAlester Miners | South Central League | , | |
| Frank Cooper | cooper001ike | 1906 | 8/12-9/2 | Dallas Giants | Texas League | , | |
| George Cooper | 1906 | Oakland Commuters | California League | , | |||
| George Cooper | 1906 | 6/4-9/8 | Roanoke Tigers | Virginia League | , | ||
| Henry Cooper | cooper001hen | 1906 | 4/28-5/3 | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Henry Cooper | cooper001hen | 1906 | 17 g. | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Henry Cooper | cooper001hen | 1906 | Paducah Indians | Kentucky-Illinois-Tennessee League | , | ||
| Ike Cooper | 1906 | 7/30-8/7 | South McAlester Miners | South Central League | , | ||
| Ike Cooper | 1906 | +5/22-7/19+ | Shawnee Blues | South Central League | , | ||
| Ike, Cooper | 1906 | 5/2-7/19 | Shawnee Blues | South Central League | , | ||
| Jimmy Cooper | cooper002jam | 1906 | 107 g. | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| John Cooper | 1906 | 125 g. | Lake Charles Creoles | South Texas League | , | ||
| Coos | 1906 | 7 g. | South Bend Greens | Central League | , | ||
| Paul Coover | 1906 | 41 g. | Wausau Lumberjacks | Wisconsin State League | , | ||
| Tommy Cope | cope--001tho | 1906 | preseason | Wichita Jobbers | Western Association | , | |
| Tommy Cope | cope--001tho | 1906 | 5/4-6/14 | Springfield Midgets | Western Association | , | |
| Tommy Cope | cope--001tho | 1906 | 6/15-7/5 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Tommy Cope | cope--001tho | 1906 | 7/8-7/11 | Wichita Jobbers | Western Association | , | |
| Tommy Cope | cope--001tho | 1906 | +7/26-8/2 | Tulsa Oilers | South Central League | , | |
| Tommy Copeland | copela001tho | 1906 | 5/3 | Dubuque Dubs | Illinois-Indiana-Iowa League | , | |
| Tommy Copeland | copela001tho | 1906 | Decatur Commodores | Illinois-Indiana-Iowa League | , | ||
| Tommy Copeland | copela001tho | 1906 | 120 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | |
| James Corbett | corbet002jam | 1906 | 9/2 | Scranton Miners | New York State League | , | |
| Joe Corbett | corbet001jos | 1906 | Stockton Millers | California League | , | ||
| Joe Corbett | corbet001jos | 1906 | San Jose Prune Pickers | California League | , | ||
| Joe Corbett | corbet001jos | 1906 | 2 g. | San Francisco Seals | Pacific Coast League | , | |
| John Corbett | corbet001joh | 1906 | Ottumwa Champs | Iowa League | , | ||
| Ted Corbett | corbet001the | 1906 | 5/2- | 64 g. | Sioux City Packers | Western League | , |
| Edward Corbin | corbin000edd | 1906 | 6/14-6/17 | Butte Miners | Northwestern League | , | |
| Corcoran | 1906 | 9/13-9/15 | Binghamton Bingoes | New York State League | , | ||
| Mickey Corcoran | corcor001mic | 1906 | 5/11-9/22 | Buffalo Bisons | Eastern League | , | |
| Phil Corcoran | corcor001phi | 1906 | 4/28-9/7 | New Haven Blues | Connecticut State League | , | |
| John Core | 1906 | 155 g. | Wheeling Stogies | Central League | , | ||
| Corey | 1906 | New London Whalers | Connecticut State League | , | |||
| Robert Corkill | corkil001rob | 1906 | 116 g. | Marshalltown Brownies | Iowa League | , | |
| Robert Corkill | corkil001rob | 1906 | Clinton IL | Independent | , | ||
| Albert Cornelius | 1906 | preseason | Columbia Gamecocks | South Atlantic League | , | ||
| Albert Cornelius | 1906 | 5/3 | Danville Red Sox | Virginia League | , | ||
| Albert Cornelius | 1906 | 5/7-6/11 | Portsmouth Truckers | Virginia League | , | ||
| Albert Cornelius | 1906 | 6/30 | Norfolk Tars | Virginia League | , | ||
| Albert Cornelius | 1906 | 8/22-9/8 | Haverhill Hustlers | New England League | , | ||
| Harry Cornen | cornen001har | 1906 | 4/27-9/8 | Bridgeport Orators | Connecticut State League | , | |
| Harry Corns | corns-002har | 1906 | 40 g. | Omaha Rourkes | Western League | , | |
| Frank Corridon | corrid001fra | 1906 | 4/27-9/14 | Williamsport Millionaires | Tri-State League | , | |
| Francis Corrigan | corrig001f-- | 1906 | no g. | Hancock Infants | Northern-Copper Country League | , | |
| Francis Corrigan | corrig001f-- | 1906 | Kenyon MN | Independent | , | ||
| Jack Corrigan | corrig002joh | 1906 | 5/19-7/29+ | Calumet Aristocrats | Northern-Copper Country League | , | |
| George Corson | corson000geo | 1906 | +8/18+ | Chic.-Lawndales | Independent | , | |
| George Corson | corson000geo | 1906 | Woodstock-Oliver | Independent | , | ||
| Thomas Cosgrove | cosgro001tho | 1906 | 5/24- | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Wallace Cosgrove | cosgro000wb- | 1906 | Princeton Univ. | College | , | ||
| George Coss | 1906 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |||
| George Coss | 1906 | 7/29-8/13 | South Bend Greens | Central League | , | ||
| George Coss | 1906 | 9/15 | Dayton Veterans | Central League | , | ||
| Emile Cote | cote--001emi | 1906 | 4/26-9/8 | Norwich Reds | Connecticut State League | , | |
| Henry Cote | cote--002hen | 1906 | 5/28-9/8 | Lawrence Colts | New England League | , | |
| John Cotter | cotter001joh | 1906 | Kane Mountaineers | Interstate League | , | ||
| Coughlin | coughl005--- | 1906 | Tri-State League | , | |||
| Coughlin | coughl005--- | 1906 | 7/27 | Hartford Senators | Connecticut State League | , | |
| John Coughlin | coughl001joh | 1906 | 4/26-6/8 | Bridgeport Orators | Connecticut State League | , | |
| Bob Coulson | coulso002rob | 1906 | 8/6-8/31 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Bob Coulson | coulso002rob | 1906 | Penn State Univ. | College | , | ||
| Cy Coulter | coulte001art | 1906 | 4/18-9/16 | Columbus Senators | American Association | , | |
| Joe Courneen | courne001jos | 1906 | 5/4-5/20 | Umpire | Western Association | , | |
| George Courtney | courtn001geo | 1906 | Kingston Colonials | Hudson River League | , | ||
| Jack Coveney | covene001joh | 1906 | 4/27-9/7 | New Bedford Whalers | New England League | , | |
| Claud Coverdale | 1906 | 5/17- | Chanute Browns | Kansas State League | , | ||
| Claud Coverdale | 1906 | +5/28-6/27+ | Coffeyville Bricks | Kansas State League | , | ||
| Tex? Covington | 1906 | +8/18+ | Texarkana Shine-Oners | Arkansas-Texas League | , | ||
| George Cowan | cowan-001geo | 1906 | 4/30-9/8 | Richmond Colts | Virginia League | , | |
| Walter Cowan | 1906 | 5/24-8/8 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Charles Cox | 1906 | 1 g. | Oakland Oaks | Pacific Coast League | , | ||
| Chesty Cox | cox---002eug | 1906 | 5/19-6/12+ | Hancock Infants | Northern-Copper Country League | , | |
| Chesty Cox | cox---002eug | 1906 | +6/25-9/3 | Calumet Aristocrats | Northern-Copper Country League | , | |
| James Cox | cox---001jam | 1906 | Plattsburgh | Northern Independent League | , | ||
| James Cox | cox---001jam | 1906 | 7/24-9/5 | Holyoke Paperweights | Connecticut State League | , | |
| Ralph Cox | cox---000ral | 1906 | 5/26- | Geneva | Empire State League | , | |
| Ralph Cox | cox---000ral | 1906 | -8/16 | Auburn | Empire State League | , | |
| Bert Coy | coy---001ber | 1906 | 4/18-9/17 | St. Paul Saints | American Association | , | |
| Frank Coyle | coyle-001fra | 1906 | +5/21-9/3 | Cleburne Railroaders | Texas League | , | |
| George Crable | crable001geo | 1906 | 5/2-5/20 | Butte Miners | Northwestern League | , | |
| Craft | 1906 | Muncie Fruit Jars | Interstate Association | , | |||
| Craig | 1906 | 6/19-6/23 | Little Rock Travelers | Southern Association | , | ||
| Edward Craig | craig-001edw | 1906 | 5/6-6/20 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Edward Craig | craig-001edw | 1906 | 7/4-9/18 | Joplin Miners | Western Association | , | |
| Harry Craig | 1906 | Monessen PA | MonongVal | , | |||
| Harry Craig | 1906 | 6/14-7/19 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Harry Craig | 1906 | 8/29 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Ralph Craig | craig-001ral | 1906 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Ralph Craig | craig-001ral | 1906 | Lebanon IN | Independent | , | ||
| Ralph Craig | craig-001ral | 1906 | 8/- | 28 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , |
| Doc Crandall | cranda002jam | 1906 | 5/5-6/15 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Anthony Crane | crane-001ant | 1906 | Erie Sailors | Interstate League | , | ||
| James Crangle | crangl001jam | 1906 | +4/20-5/10+ | Clinton IL | Independent | , | |
| James Crangle | crangl001jam | 1906 | +5/21-7/19+ | 17 g, | Boone/Clinton Miners | Iowa League | , |
| James Crangle | crangl001jam | 1906 | +7/31-9/15 | Oshkosh Indians | Wisconsin State League | , | |
| Bill Cranston | cranst001wil | 1906 | 5/11 | Syracuse Stars | New York State League | , | |
| Bill Cranston | cranst001wil | 1906 | Erie Sailors | Interstate League | , | ||
| R. J. Cranston | 1906 | 5/5-6/28+ | Columbus/Brunswick River Snipes | Georgia State League | , | ||
| R. J. Cranston | 1906 | 7/18-8/18 | Orangeburg | South Carolina League | , | ||
| Joseph Crapo | crapo-001jos | 1906 | Wilmington DE | Independent | , | ||
| Joseph Crapo | crapo-001jos | 1906 | 4/27-7/13 | Haverhill Hustlers | New England League | , | |
| Joseph Crapo | crapo-001jos | 1906 | 7/21-7/26 | Holyoke Paperweights | Connecticut State League | , | |
| Cratty | 1906 | Monessen PA | MonoVal | , | |||
| Cratty | 1906 | 8/18 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Gavvy Cravath | cravat001cli | 1906 | Los Angeles Angels | Pacific Coast League | , | ||
| James Cravens | craven002jam | 1906 | 5/5-6/6 | Webb City Goldbugs | Western Association | , | |
| James Cravens | craven002jam | 1906 | 6/12-7/2 | Topeka White Sox | Western Association | , | |
| James Cravens | craven002jam | 1906 | 7/21-8/17 | Springfield Midgets | Western Association | , | |
| Crawford | 1906 | 5/26 | Danville Red Sox | Virginia League | , | ||
| Forrest Crawford | crawfo001for | 1906 | 85 g. | Houston Buffaloes | South Texas League | , | |
| Forrest Crawford | crawfo001for | 1906 | 7/30- | 45 g. | St. Louis | National League | St. Louis, MO |
| Pat Crawley | 1906 | 5/5-6/7+ | Americus Pallbearers | Georgia State League | , | ||
| Birdie Cree | cree--001wil | 1906 | +5/29+ | Penn State Univ. | College | , | |
| Birdie Cree | cree--001wil | 1906 | +7/20-8/23+ | Burlington | Northern Independent League | , | |
| Lawrence Creoli | 1906-07 | +5/24+ | Donaldsonville LA | Independent | , | ||
| Crews | 1906 | 5/12-5/31 | Americus Pallbearers | Georgia State League | , | ||
| Chester Crews | 1906 | 5/4 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Chester Crews | 1906 | 7/22-9/10 | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| J. W. Crews | 1906 | Joliet IL | Independent | , | |||
| J. W. Crews | 1906 | Springfield Senators | Illinois-Indiana-Iowa League | , | |||
| Leslie Crichlow | 1906 | 20 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Leslie Crichlow | 1906 | 20 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Pat Crisham | crisha002pat | 1906 | 5/10-9/23 | Syracuse Stars | New York State League | , | |
| Joseph Crisp | crisp-001jos | 1906 | 7/1-7/4 | Webb City Goldbugs | Western Association | , | |
| Joseph Crisp | crisp-001jos | 1906 | 8/10-8/16 | Leavenworth Old Soldiers | Western Association | , | |
| Dode Criss | criss-001dod | 1906 | 5/1-8/30 | Cleburne Railroaders | Texas League | , | |
| Charles Crist | crist-000cha | 1906 | Burlington Pathfinders | Iowa League | , | ||
| Ches Crist | crist-001che | 1906 | 5/18- | 6 g. | Philadelphia | National League | Philadelphia, PA |
| Ches Crist | crist-001che | 1906 | 7/10-9/4 | Providence Grays | Eastern League | , | |
| Ches Crist | crist-001che | 1906 | -10/1 | Philadelphia | National League | Philadelphia, PA | |
| Bill Cristall | crista001wil | 1906 | 5/9-6/5 | Harrisburg Senators | Tri-State League | , | |
| Bill Cristall | crista001wil | 1906 | 6/8-6/20 | Williamsport Millionaires | Tri-State League | , | |
| Bill Cristall | crista001wil | 1906 | 44 g. | Scranton Miners | New York State League | , | |
| George Crocker | 1906 | 5/20-6/11 | Umpire | Western Association | , | ||
| George Crocker | 1906 | 7/16-9/20 | Umpire | Western Association | , | ||
| Davey Crockett | crocke001dan | 1906 | 5/3-9/11 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Fred Crolius | croliu001fre | 1906 | 4/25-9/14 | Lancaster Red Roses | Tri-State League | , | |
| George Croll | croll-001geo | 1906 | 130 g. | Seattle Siwashes | Pacific Coast League | , | |
| Lyle Cromley | cromle001lyl | 1906 | 4/18-9/15 | Indianapolis Indians | American Association | , | |
| Jack Cronin | cronin001joh | 1906 | 4/26-9/20 | Providence Grays | Eastern League | , | |
| Patsy Cronin | cronin001pat | 1906 | Dunkirk NY | Independent | , | ||
| Tom Crooke | crooke001tho | 1906 | 4/26-5/26 | Springfield Ponies | Connecticut State League | , | |
| Tom Crooke | crooke001tho | 1906 | 6/1 | Holyoke Paperweights | Connecticut State League | , | |
| Tom Crooke | crooke001tho | 1906 | 6/2-6/4 | Hartford Senators | Connecticut State League | , | |
| Tom Crooke | crooke001tho | 1906 | 6/7-6/27 | Holyoke Paperweights | Connecticut State League | , | |
| Tom Crooke | crooke001tho | 1906 | 6/28-9/8 | Hartford Senators | Connecticut State League | , | |
| Reta Crosley | 1906 | 5/3-6/6+ | Albany | Georgia State League | , | ||
| Cross | 1906 | 5/3-6/14 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Cross | 1906 | +6/25-6/28 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Frank Cross | cross-001fra | 1906 | 4/27-9/11 | Dayton Veterans | Central League | , | |
| H. C. Cross | 1906 | 18 g. | Boone/Clinton Miners | Iowa League | , | ||
| Lave Cross | cross-001laf | 1906 | 130 g. | Washington | American League | Washington, DC | |
| Lem Cross | cross-001lem | 1906 | 5/3-9/8 | Manchester Textiles | New England League | , | |
| Nathan Cross | cross-001nat | 1906 | +6/2-7/25+ | Hancock Infants | Northern-Copper Country League | , | |
| Crossman | 1906 | 7/5 | Wilkes-Barre Barons | New York State League | , | ||
| Crossman | 1906 | 9/2 | Scranton Miners | New York State League | , | ||
| Charles Crouch | 1906 | Ottawa Univ | College | , | |||
| Charles Crouch | 1906 | 5/10-7/16+ | Chanute Browns | Kansas State League | , | ||
| Charles Crouch | 1906 | +8/5+ | 26 g. | Bartlesville Indians | Kansas State League | , | |
| Leo Croughn | crough001--- | 1906 | Sioux City Packers | Western League | , | ||
| Leo Croughn | crough001--- | 1906 | 8/4-8/7 | Wilkes-Barre Barons | New York State League | , | |
| Edward Crowder | crowde001ned | 1906 | 4/16-5/12 | Macon Brigands | South Atlantic League | , | |
| Edward Crowder | crowde001ned | 1906 | +5/31-7/4 | Valdosta Stars | Georgia State League | , | |
| Edward Crowder | crowde001ned | 1906 | 7/9-8/18 | Orangeburg | South Carolina League | , | |
| Edward Crowder | crowde001ned | 1906 | 8/20-9/3 | Charleston Sea Gulls | South Atlantic League | , | |
| Charles Crowe | crowe-001cha | 1906 | 8/14 | Sharon Steels | Ohio-Pennsylvania League | , | |
| Crowley | 1906 | Americus Pallbearers | Georgia State League | , | |||
| James Crowley | 1906 | 8/7 | Manchester Textiles | New England League | , | ||
| Dick Crozier | crozie001j-- | 1906 | 4/11-9/15 | Atlanta Crackers | Southern Association | , | |
| Crum | 1906 | +8/3+ | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| Walter Crum | crum--001wal | 1906 | 5/10-5/12 | Albany Senators | New York State League | , | |
| Walter Crum | crum--001wal | 1906 | 5/28-6/14 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Walter Crum | crum--001wal | 1906 | 6/25-9/15 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| Walter Crum | crum--001wal | 1906 | 9/19-9/29 | Sharon Steels | Ohio-Pennsylvania League | , | |
| Louis Crutcher | 1906 | 5/7-5/18 | Kansas City Blues | American Association | , | ||
| Louis Crutcher | 1906 | 5/22-7/9 | Independence Coyotes | Kansas State League | , | ||
| Louis Crutcher | 1906 | 7/16-9/16 | Kansas City Blues | American Association | , | ||
| Richard Crutcher | 1906 | 5/7-5/18 | Kansas City Blues | American Association | , | ||
| Richard Crutcher | 1906 | Independence Coyotes | Kansas State League | , | |||
| Richard Crutcher | 1906 | 7/16-9/16 | Enid | American Association | , | ||
| Edward Crutchley | 1906 | Sunb.-All-Collegian | Independent | , | |||
| Edward Crutchley | 1906 | 32 g, | Roanoke Tigers | Virginia League | , | ||
| Edward Crutchley | 1906 | 6/14-8/17 | Roanoke Tigers | Virginia League | , | ||
| Joseph Cuddy | cuddy-001joh | 1906 | 113 g. | Richmond Colts | Virginia League | , | |
| Joseph Cuddy | cuddy-001joh | 1906 | 4/26-9/8 | Richmond Colts | Virginia League | , | |
| H. A. Culbertson | 1906 | 5/24-6/2 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| H. A. Culbertson | 1906 | Martinsburg WV | Independent | , | |||
| Cummings | 1906 | Cordele | Georgia State League | , | |||
| Alvin Cummings | 1906 | Univ. Wisconsin | College | , | |||
| Alvin Cummings | 1906 | 6/18-9/3 | Duluth White Sox | Northern-Copper Country League | , | ||
| Andrew Cummings | 1906 | 8/12-9/23 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | ||
| H. A. Cummings | cummin001h-- | 1906 | 4/29-8/7 | Fort Smith Razorbacks | South Central League | , | |
| Roscoe Cummings | cummin001ros | 1906 | 62 g. | Baton Rouge Cajuns | Cotton States League | , | |
| Cunningham | 1906 | 8/30-9/7 | Portsmouth Truckers | Virginia League | , | ||
| Mike Cunningham | cunnin001mod | 1906 | 8/31-9/21 | Philadelphia | American League | Philadelphia, PA | |
| Jacob Cuppy | cuppy-001jac | 1906 | 8 g. | Green Bay Colts | Wisconsin State League | , | |
| Edward Curley | curley000edd | 1906 | 7/5-8/18 | Umpire | Connecticut State League | , | |
| Curran | 1906 | 5/1+ | Guthrie Senators | South Central League | , | ||
| Jack Curran | curran001joh | 1906 | 4/16-6/25 | Savannah Indians | South Atlantic League | , | |
| Clarence Currie | currie001cla | 1906 | 4/29-7/4 | Toronto Maple Leafs | Eastern League | , | |
| Clarence Currie | currie001cla | 1906 | 7/7-9/19 | Buffalo Bisons | Eastern League | , | |
| William Currie | 1906 | 5/3-7/3 | Erie Sailors | Interstate League | , | ||
| William Currie | 1906 | +8/8+ | Flint MI | Independent | , | ||
| William Currie | 1906 | 8/28- | 10 g. | Saginaw | Southern Michigan League | , | |
| Henry Curry | 1906 | Montreal | Canadian League | , | |||
| Jack Curry | curry-001joh | 1906 | +6/3+ | Erie Sailors | Interstate League | , | |
| Thomas Curtin | curtin001tho | 1906 | 6/11-7/21 | Grand Rapids Wolverines | Central League | , | |
| Thomas Curtin | curtin001tho | 1906 | DuBois Miners | Interstate League | , | ||
| Curtis | 1906 | 5/14-5/17 | Macon Brigands | South Atlantic League | , | ||
| Curtis | 1906 | 9/6 | Newark Sailors | Eastern League | , | ||
| Cliff Curtis | curtis001cli | 1906 | 4/20-9/12 | Milwaukee Brewers | American Association | , | |
| Clyde Curtis | curtis001cly | 1906 | 120 g. | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Don Curtis | curtis002don | 1906 | 4/25-6/16+ | Greenville Hunters | Texas League | , | |
| Fred Curtis | curtis001fre | 1906 | 44 g. | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Fred Curtis | curtis001fre | 1906 | 64 g. | Ottumwa Champs | Iowa League | , | |
| Gene Curtis | curtis002eug | 1906 | 4/11-4/28 | Atlanta Crackers | Southern Association | , | |
| Gene Curtis | curtis002eug | 1906 | 5/1-5/5 | Montgomery Senators | Southern Association | , | |
| Gene Curtis | curtis002eug | 1906 | 5/14-5/17 | Macon Brigands | South Atlantic League | , | |
| Gene Curtis | curtis002eug | 1906 | 5/24-9/25 | Grand Rapids Wolverines | Central League | , | |
| Harry Curtis | curtis001har | 1906 | 5/12-6/9 | Utica Pent-Ups | New York State League | , | |
| Harry Curtis | curtis001har | 1906 | Bradford Drillers | Interstate League | , | ||
| Joe Curtis | curtis001jos | 1906 | 4/27-8/16 | New London Whalers | Connecticut State League | , | |
| Joe Curtis | curtis001jos | 1906 | 8/17-9/8 | Springfield Ponies | Connecticut State League | , | |
| Paul Curtis | curtis001pau | 1906 | 4/14-4/20 | Atlanta Crackers | Southern Association | , | |
| Paul Curtis | curtis001pau | 1906 | 4/30-8/3 | Charleston Sea Gulls | South Atlantic League | , | |
| Stephen Cusack | 1906 | 5/10-9/23 | Umpire | New York State League | , | ||
| Harvey Cushman | cushma001har | 1906 | 5/24-5/30 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| James Cuthbert | 1906 | Springfield Midgets | Western Association | , | |||
| James Cuthbert | 1906 | Dixon IL | Independent | , | |||
| Thomas Cuthbert | 1906 | 4/26-5/4 | Hartford Senators | Connecticut State League | , | ||
| Thomas Cuthbert | 1906 | Burlington | Northern Independent League | , | |||
| Thomas Cuthbert | 1906 | +7/28+ | Lynn MA | Independent | , | ||
| Win Cutter | cutter002win | 1906 | San Francisco Seals | Pacific Coast League | , | ||
| Ralph Cutting | 1906 | 7/11- | Lowell Tigers | New England League | , | ||
| Ralph Cutting | 1906 | -9/6 | Manchester Textiles | New England League | , | ||
| Herman Dahlgren | 1906 | Salzer Lumber | Independent | , | |||
| George Dailey | 1906 | 5/24-7/7 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| George Dailey | 1906 | 7/14-8/1 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| George Dailey | 1906 | 8/3-8/17 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Arthur Daley | 1906 | Montpelier-Barre | Northern Independent | , | |||
| James Daley | daley-002jam | 1906 | no g. | Syracuse Stars | New York State League | , | |
| James Daley | 1906 | 5/24-5/26 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Judson Daley | daley-001jud | 1906 | 4/12-9/15 | Shreveport Pirates | Southern Association | , | |
| Thomas Daley | 1906 | 118 g. | Burlington Pathfinders | Iowa League | , | ||
| Tom Daley | daley-001tho | 1906 | 118 g. | Burlington Pathfinders | Iowa League | , | |
| George Dalrymple | dalrym001geo | 1906 | 5/4-9/17 | Joplin Miners | Western Association | , | |
| Bert Daly | daly--001alb | 1906 | 4/26-6/28 | Hartford Senators | Connecticut State League | , | |
| James Daly | 1906 | 7/13-9/8 | Portsmouth Truckers | Virginia League | , | ||
| Tom Daly | daly--002tho | 1906 | 6/1-9/15 | Altoona Mountaineers | Tri-State League | , | |
| Bill Dammann | damman001bil | 1906 | 5/14 | Topeka White Sox | Western Association | , | |
| Bill Dammann | damman001bil | 1906 | 5/21-6/9 | Wichita Jobbers | Western Association | , | |
| Bill Dammann | damman001bil | 1906 | 6/20? | Nashville Volunteers | Southern Association | , | |
| Bill Dammann | damman001bil | 1906 | 6/20-9/3 | Jackson Senators | Cotton States League | , | |
| Frank Dang | 1906 | Havana IL | Independent | , | |||
| Daniels | 1906 | Sante Fes | Independent | , | |||
| Daniels | 1906 | 6/4-6/11 | Waco Navigators | Texas League | , | ||
| Daniels | 1906 | +7/11-8/23+ | Montpelier-Barre | Northern Independent | , | ||
| Bert Daniels | daniel001ben | 1906 | Villanova Col | College | , | ||
| Bert Daniels | daniel001ben | 1906 | +6/20-7/7+ | Jackson Convicts | Southern Michigan League | , | |
| Bert Daniels | daniel001ben | 1906 | no g. | Lancaster Red Roses | Tri-State League | , | |
| Maurice Danihy | 1906 | 6/30-7/11 | Umpire | Virginia League | , | ||
| Babe Danzig | danzig001har | 1906 | 7/14- | Oswego | Empire State League | , | |
| Babe Danzig | danzig001har | 1906 | Auburn | Empire State League | , | ||
| Clifford Daringer | 1906 | 4/26-9/8 | Lynchburg Shoemakers | Virginia League | , | ||
| Darling | 1906 | 7/11 | Spokane Indians | Northwestern League | , | ||
| Sylvia Darrah | 1906 | 5/4-9/14 | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| Darrow | 1906 | 4/29 | Wheeling Stogies | Central League | , | ||
| Walter Dashwood | dashwo001wal | 1906 | 139 g. | Fresno Raisin Eaters | Pacific Coast League | , | |
| Jacob Daubert | 1906 | Kane Mountaineers | Interstate League | , | |||
| James Daugherty | 1906 | 6/27 | Greenville Hunters | Texas League | , | ||
| Augustus Daum | daum--001aug | 1906 | 6/2-9/8 | Lynn Shoemakers | New England League | , | |
| G. A. Davenport | 1906 | 5/29-6/9 | Cordele | Georgia State League | , | ||
| G. A. Davenport | 1906 | 7/11 | Camden | South Carolina League | , | ||
| G. A. Davenport | 1906 | 7/17-7/27 | Darlington | South Carolina League | , | ||
| G. A. Davenport | 1906 | 8/6-8/17 | Roanoke Tigers | Virginia League | , | ||
| James Davey | davey-002jam | 1906 | Bradford Drillers | Interstate League | , | ||
| James Davey | davey-002jam | 1906 | Olean Refiners | Interstate League | , | ||
| Bill Davidson | davids007wil | 1906 | 96 g. | Fort Dodge Gypsumites | Iowa League | , | |
| Bill Davidson | davids007wil | 1906 | 9/15-9/30 | Lincoln Ducklings | Western League | , | |
| Ed Davidson | 1906 | 5/1-5/13 | Guthrie Senators | South Central League | , | ||
| Ed Davidson | 1906 | 9/3 | Chanute Browns | Kansas State League | , | ||
| Robert Davidson | davids001pau | 1906 | 5/3-8/25+ | Dubuque Dubs | Illinois-Indiana-Iowa League | , | |
| Davis | 1906 | Chanute Browns | Kansas State League | , | |||
| Davis | 1906 | 5/29-6/6 | Fort Smith Razorbacks | South Central League | , | ||
| Davis | 1906 | 9/11-9/12 | Syracuse Stars | New York State League | , | ||
| Davis | 1906 | +7/2-8/23+ | Montpelier-Barre | Northern Independent | , | ||
| Davis | 1906 | 9/7 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Ben Davis | davis-001ben | 1906 | +5/19-8/14+ | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Billy Davis | 1906 | Denv.-Garnita | Independent | , | |||
| Billy Davis | 1906 | 9/11-9/30 | Denver Grizzlies | Western League | , | ||
| Daniel Davis | davis-002dan | 1906 | -9/29 | 123 g. | Newark Cotton Tops | Ohio-Pennsylvania League | , |
| Earl Davis | 1906 | Chanute-Elks | Independent | , | |||
| Earl Davis | 1906 | 7/23 | Chanute Browns | Kansas State League | , | ||
| Elmer Davis | davis-002elm | 1906 | 5/25-9/15 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | |
| Gerald Davis | davis-004ger | 1906 | 5/18-6/22 | Webb City Goldbugs | Western Association | , | |
| Gerald Davis | davis-004ger | 1906 | 6/30- | Topeka White Sox | Western Association | , | |
| Ira Davis | davis-008j-- | 1906 | 5/2-10/1 | Umpire | Western League | , | |
| Lefty Davis | davis-001alf | 1906 | 4/18-9/17 | Minneapolis Millers | American Association | , | |
| Paul Davis | davis-002pau | 1906 | 5/24 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| Paul Davis | davis-002pau | 1906 | 7/24-9/15 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| Nicholas Daviscourt | davisc000nic | 1906 | Ellensburg | Yakima Valley | , | ||
| Lee Dawkins | dawkin001lev | 1906 | 4/25-6/13+ | Waco Navigators | Texas League | , | |
| Lee Dawkins | dawkin001lev | 1906 | Pine Bluff Barristers | Arkansas-Texas League | , | ||
| Dawson | 1906 | Johnstown Johnnies | Tri-State League | , | |||
| Henry Daye | daye--001hen | 1906 | 5/1-7/13 | Tulsa Oilers | South Central League | , | |
| Henry Daye | daye--001hen | 1906 | 7/17-7/21 | Wichita Jobbers | Western Association | , | |
| Henry Daye | daye--001hen | 1906 | 8/6 | Fort Smith Razorbacks | South Central League | , | |
| Snake Deal | deal--002joh | 1906 | 4/25-7/7 | Lancaster Red Roses | Tri-State League | , | |
| Snake Deal | deal--002joh | 1906 | 7/9-10/7 | Cincinnati | National League | Cincinnati, OH | |
| Charlie DeArmond | dearmo002cha | 1906 | 4/12-9/15 | Little Rock Travelers | Southern Association | , | |
| Lon Deatheridge | 1906 | 7/15 | Fort Worth Panthers | Texas League | , | ||
| Walter Deaver | deaver001wal | 1906 | Umpire | South Atlantic League | , | ||
| Walter Deaver | deaver001wal | 1906 | 5/17-9/1 | Savannah Indians | South Atlantic League | , | |
| Walter Deaver | deaver001wal | 1906 | 9/7- | Des Moines Champs | Western League | , | |
| Archie DeBaker | debake001art | 1906 | +6/3+ | Muskegon MI | Independent | , | |
| Frank Decanniere | 1906 | 5/3- | 19 g. | Independence Coyotes | Kansas State League | , | |
| Albert Decker | decker001alb | 1906 | +4/30-5/30+ | Terre Haute Hottentots | Central League | , | |
| Albert Decker | decker001alb | 1906 | 6/5-9/25 | Dayton Veterans | Central League | , | |
| Frank Decker | 1906 | 5/3-7/4 | Fort Scott Giants | Kansas State League | , | ||
| Frank Decker | 1906 | 27 g. | Bartlesville Indians | Kansas State League | , | ||
| Frank Decker | 1906 | +7/11-8/2 | Tulsa Oilers | South Central League | , | ||
| Frank Decker | 1906 | 8/16- | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Frank Decker | 1906 | Independence Coyotes | Kansas State League | , | |||
| Alonzo DeCosta | decost001a-- | 1906 | 5/31-6/1+ | Albany | Georgia State League | , | |
| Alonzo DeCosta | decost001a-- | 1906 | +6/7-6/20 | Americus Pallbearers | Georgia State League | , | |
| Alonzo DeCosta | decost001a-- | 1906 | 6/21-8/18 | Georgetown | South Carolina League | , | |
| Bill Deegan | deegan001wil | 1906 | +6/17+ | Hoboken NJ | Independent | , | |
| John Deering | deerin001joh | 1906 | 11 g. | Lynn Shoemakers | New England League | , | |
| John Deering | deerin001joh | 1906 | 5/2-5/24 | Montreal Royals | Eastern League | , | |
| Rube DeGroff | degrof001edw | 1906 | 4/29 | St. Louis | National League | St. Louis, MO | |
| Rube DeGroff | degrof001edw | 1906 | 5/11-9/23 | Troy Trojans | New York State League | , | |
| Arista DeHaven | 1906 | 4/29-9/25 | Springfield Babes | Central League | , | ||
| Otto Deininger | deinin001ott | 1906 | +7/2-8/17 | Rutland | Northern Independent League | , | |
| Otto Deininger | deinin001ott | 1906 | 8/21-9/15 | Altoona Mountaineers | Tri-State League | , | |
| Henry Deisel | deisel001c-- | 1906 | +6/2-9/23 | Mount Clemens Bathers | Southern Michigan League | , | |
| Benjamin Deiters | 1906 | 7/-7/ | Terre Haute Hottentots | Central League | , | ||
| Charles Deiters | deiter001cha | 1906 | +5/4-9/3 | Wheeling Stogies | Central League | , | |
| James Deiters | 1906 | South Bend Greens | Central League | , | |||
| James Deiters | 1906 | Terre Haute Hottentots | Central League | , | |||
| Leroy Dekin | dekin-001ler | 1906 | Oswego | Empire State League | , | ||
| Frank Delahanty | delaha001fra | 1906 | 92 g. | New York | American League | New York, NY | |
| Jim Delahanty | delaha001jam | 1906 | 115 g. | Cincinnati | National League | Cincinnati, OH | |
| Joe Delahanty | delaha001jos | 1906 | 4/25-9/15 | Williamsport Millionaires | Tri-State League | , | |
| Tom Delahanty | delaha001tho | 1906 | 4/25-6/2 | Williamsport Millionaires | Tri-State League | , | |
| William Delahanty | deleha001wil | 1906 | -9/29 | 134 g. | Mansfield Giants | Ohio-Pennsylvania League | , |
| Edwin DeLave | 1906 | Auburn | Empire State League | , | |||
| Edwin DeLave | 1906 | 8/22-8/25 | Wilkes-Barre Barons | New York State League | , | ||
| Del Delmas | delmas001ber | 1906 | 182 g. | Los Angeles Angels | Pacific Coast League | , | |
| Del Delmas | delmas001ber | 1906 | Fresno Raisin Eaters | Pacific Coast League | , | ||
| H. W. DeLorme | 1906 | 5/24- | Austin Senators | South Texas League | , | ||
| H. W. DeLorme | 1906 | -7/19 | Galveston Sand Crabs | South Texas League | , | ||
| Chas. Demmitt | 1906 | 6/23-8/ | Ottawa | Northern Independent League | , | ||
| Gene DeMontreville | demont001eug | 1906 | 4/18-9/16 | Toledo Mud Hens | American Association | , | |
| Charles DeMoss | demoss001cha | 1906 | Bradford Drillers | Interstate League | , | ||
| St. Julian Dendy | 1906 | 4/18-4/23 | Charleston Sea Gulls | South Atlantic League | , | ||
| St. Julian Dendy | 1906 | 6/11-8/6 | Sumter Game Cocks | South Carolina League | , | ||
| George Deneau | 1906 | Jackson Convicts | Southern Michigan League | , | |||
| Bert Dennis | dennis002ber | 1906 | Anderson | Interstate Association | , | ||
| Bert Dennis | dennis002ber | 1906 | 79 g. | South Bend Greens | Central League | , | |
| Ed Dennis | 1906 | +6/5-6/30 | Erie Sailors | Interstate League | , | ||
| Ed Dennis | 1906 | 7/-8/25+ | Battle Creek Crickets | Southern Michigan League | , | ||
| M. A. Dennis | 1906 | +7/16-9/9 | Chanute Browns | Kansas State League | , | ||
| George Dennison | 1906 | 4/28-5/17 | Fort Smith Razorbacks | South Central League | , | ||
| George Dennison | 1906 | +5/20-8/2 | Tulsa Oilers | South Central League | , | ||
| Denny | 1906 | South McAlester Miners | South Central League | , | |||
| William Derby | derby-001--- | 1906 | 5/24-6/13 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| William Derby | derby-001--- | 1906 | Somerset OH | Independent | , | ||
| Floyd Derham | derham001f-- | 1906 | 6/5-6/11+ | Grand Rapids Wolverines | Central League | , | |
| Derrick | 1906 | 4/28-9/3 | Umpire | Northwestern League | , | ||
| Derrick | 1906 | +9/14-10/21+ | Umpire | Pacific Coast League | , | ||
| Claud Derrick | derric001cla | 1906-09 | Univ. Georgia | College | , | ||
| Nick Deshon | denton010--- | 1906 | 6/13- | DuBois Miners | Interstate League | , | |
| John Desmond | desmon000jac | 1906 | 5/5- | Keokuk Indians | Iowa League | , | |
| Rube Dessau | dessau001fra | 1906 | 4/26-4/30 | Harrisburg Senators | Tri-State League | , | |
| Rube Dessau | dessau001fra | 1906 | 5/2-5/30 | Lancaster Red Roses | Tri-State League | , | |
| Rube Dessau | dessau001fra | 1906 | 6/5-8/9 | Williamsport Millionaires | Tri-State League | , | |
| Rube Dessau | dessau001fra | 1906 | 8/22-9/15 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | |
| Mike Devanney | 1906 | -5/9 | Umpire | Kentucky-Illinois-Tennessee League | , | ||
| Mike Devanney | 1906 | Paris KY | Independent | , | |||
| Charles Deveaux | 1906 | 5/19-6/13 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Thomas Devine | devine001tho | 1906 | Fitchburg MA | Independent | , | ||
| Thomas Devine | devine001tho | 1906 | no g. | Holyoke Paperweights | Connecticut State League | , | |
| Devitt | 1906 | <10 | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| Devlin | 1906 | Georgetown Col. | College | , | |||
| Devlin | 1906 | Rutland | Northern Independent League | , | |||
| Devlin | 1906 | No. Attleboro MA | Independent | , | |||
| Hugh Devlin | 1906-07 | Georgetown Col. | College | , | |||
| Hugh Devlin | 1906 | +6/9+ | Berkeley RI | Independent | , | ||
| Hugh Devlin | 1906 | 6/23-8/- | Rutland | Northern Independent League | , | ||
| Hugh Devlin | 1906 | No. Attleboro MA | Independent | , | |||
| Josh Devore | devore001jos | 1906 | 118 g. | Meridian Ribboners | Cotton States League | , | |
| Dewald | 1906 | 4/29-5/2 | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| Herbert Dewar | 1906 | 8/6-9/15 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Charles Dexter | dexter001cha | 1906 | 4/16-9/3 | Savannah Indians | South Atlantic League | , | |
| Charlie Dexter | dexter002cha | 1906 | 5/2-8/25 | Des Moines Champs | Western League | , | |
| Deyo | 1906 | +5/19+ | Cordele | Georgia State League | , | ||
| Frank Dick | dick--001fra | 1906 | 6/20- | Oskaloosa Quakers | Iowa League | , | |
| Dickey | 1906 | Sparta IL | Independent | , | |||
| Dickey | 1906 | 8/31-9/15 | Webb City Goldbugs | Western Association | , | ||
| Guy Dickey | dickey001guy | 1906 | 4/27-9/25 | Springfield Babes | Central League | , | |
| Dickinson | 1906 | 17 g. | Freeport Pretzels | Wisconsin State League | , | ||
| Frank Dickinson | 1906 | U. of Chicago | College | , | |||
| Frank Dickinson | 1906 | 4/26-4/29 | Evansville River Rats | Central League | , | ||
| Frank Dickinson | 1906 | no g. | Springfield Babes | Central League | , | ||
| Frank Dickinson | 1906 | 6/22-8/26 | Peoria Distillers | Illinois-Indiana-Iowa League | , | ||
| Frank Dickinson | 1906 | 8/17-8/28 | Sioux City Packers | Western League | , | ||
| Walter Dickson | dickso001wal | 1906 | 4/25-9/2 | Cleburne Railroaders | Texas League | , | |
| Diebold | 1906 | +7/29+ | Buff.-Hawthornes | Independent | , | ||
| Charles Diebold | 1906 | 4/28-5/15 | Roanoke Tigers | Virginia League | , | ||
| Charles Diebold | 1906 | 5/30-6/4 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Ernie Diehl | diehl-001ern | 1906 | 3 g. | Boston | National League | Boston, MA | |
| Ernie Diehl | diehl-001ern | 1906 | Avondale OH | Independent | , | ||
| Walter Diehl | 1906 | 108 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | ||
| Heiney Dieters | 1906 | 9/8-9/15 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Milton Dillard | dillar001mil | 1906 | 5/5-6/18+ | Columbus/Brunswick River Snipes | Georgia State League | , | |
| Milton Dillard | dillar001mil | 1906 | 7/24-8/18 | Darlington | South Carolina League | , | |
| Pat Dillard | dillar002pat | 1906 | 4/27-5/15 | Haverhill Hustlers | New England League | , | |
| Pat Dillard | dillar002pat | 1906 | 6/4-6/7 | Waterbury Authors | Connecticut State League | , | |
| Pat Dillard | dillar002pat | 1906 | 6/29-7/5 | Springfield Ponies | Connecticut State League | , | |
| Pat Dillard | dillar002pat | 1906 | 8/10-9/3 | Savannah Indians | South Atlantic League | , | |
| C. Dillman | 1906 | +5/15-8/19+ | Partridge KS | Independent | , | ||
| C. Dillman | 1906 | +9/6+ | Haven KS | Independent | , | ||
| C. Dillman | 1906 | 9/11 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| Ed Dillon | dillon001edw | 1906 | +7/22+ | Saginaw | Southern Michigan League | , | |
| Ed Dillon | dillon001edw | 1906 | +8/18-9/23 | Battle Creek Crickets | Southern Michigan League | , | |
| Frank Dillon | dillon001fra | 1906 | 156 g. | Los Angeles Angels | Pacific Coast League | , | |
| Jack Dillon | dillon002joh | 1906 | 5/9-9/23 | Montreal Royals | Eastern League | , | |
| Tom Dillon | dillon001tho | 1906 | 4/26-6/25 | Springfield Ponies | Connecticut State League | , | |
| Fred Dingle | dingle001fre | 1906 | 4/26-9/8 | Norfolk Tars | Virginia League | , | |
| Dinkins | 1906 | +5/31+ | Valdosta Stars | Georgia State League | , | ||
| George Disch | disch-001geo | 1906 | 4/20-5/16 | St. Paul Saints | American Association | , | |
| George Disch | disch-001geo | 1906 | 6/1 | Des Moines Champs | Western League | , | |
| George Disch | disch-001geo | 1906 | 6/15-9/21 | Evansville River Rats | Central League | , | |
| William Disch | disch-001wil | 1906 | 91 g. | Galveston Sand Crabs | South Texas League | , | |
| William Dithridge | dithri001wil | 1906 | 126 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| Harry Dix | 1906 | St. Mary's OH | Independent | , | |||
| Harry Dix | 1906 | +5/24+ | Lima | Interstate Association | , | ||
| Dixon | 1906 | 6/1-6/24 | South McAlester Miners | South Central League | , | ||
| C. Doak | 1906 | 6/7-8/18 | Emporia VA | Independent | , | ||
| Charles Doak | doak--001cha | 1906 | Greensboro NC | Independent | , | ||
| P. Doak | 1906 | +8/18+ | Emporia VA | Independent | , | ||
| Robert Doak | 1906 | Guilford College | College | , | |||
| Robert Doak | 1906 | Greensboro NC | Independent | , | |||
| Claude Dobard | 1906 | Yoakum TX | Independent | , | |||
| William Dobbins | 1906 | Read.-St. Peters | Independent | , | |||
| William Dobbins | 1906 | Read.-Penn RR | Independent | , | |||
| Frank Dobson | 1906 | 16 g. | Jackson Senators | Cotton States League | , | ||
| Jimmy Dobson | 1906 | 16 g. | Jackson Senators | Cotton States League | , | ||
| Willard Dodge | dodge-001wil | 1906 | 5/4-9/30 | Omaha Rourkes | Western League | , | |
| Dodson | 1906 | +6/24-6/30+ | Guthrie Senators | South Central League | , | ||
| Mike Doherty | dohert001mic | 1906 | 5/11-9/23 | Albany Senators | New York State League | , | |
| Thomas Doherty | 1906 | Rockville CT | Independent | , | |||
| Cozy Dolan | dolan-001pat | 1906 | Boston | National League | Boston, MA | ||
| Cozy Dolan | dolan-001alb | 1906 | 118 g. | Oshkosh Indians | Wisconsin State League | , | |
| Cozy Dolan | dolan-001alb | 1906 | La Crosse Pinks | Wisconsin State League | , | ||
| Joe Dolan | dolan-001jos | 1906 | 5/2-10/1 | Omaha Rourkes | Western League | , | |
| John Dolan | dolan-002joh | 1906 | 4/29- | 9 g. | Akron Rubbernecks | Ohio-Pennsylvania League | , |
| John Dolan | dolan-004joh | 1906 | 4/27-9/8 | Holyoke Paperweights | Connecticut State League | , | |
| Leon Dolan | dolan-001leo | 1906 | 5/19-7/12+ | Fargo | Northern-Copper Country League | , | |
| Leon Dolan | dolan-001leo | 1906 | +8/20-9/3 | Calumet Aristocrats | Northern-Copper Country League | , | |
| Donahue | 1906 | 9/29 | Sioux City Packers | Western League | , | ||
| Frank Donahue | donahu002fra | 1906 | 4/27-9/25 | Springfield Babes | Central League | , | |
| Jiggs Donahue | donahu001joh | 1906 | Chicago | American League | Chicago, IL | ||
| Pat Donahue | donahu003pat | 1906 | Stockton Millers | California League | , | ||
| Pat Donahue | donahu003pat | 1906 | 116 g. | Portland Beavers | Pacific Coast League | , | |
| Red Donahue | donahu001fra | 1906 | Detroit | American League | Detroit, MI | ||
| She Donahue | donahu002cha | 1906 | 4/18-5/17 | Kansas City Blues | American Association | , | |
| She Donahue | donahu002cha | 1906 | 7/17-9/30 | Denver Grizzlies | Western League | , | |
| William Donahue | donahu001wil | 1906 | 4/26-9/15 | Evansville River Rats | Central League | , | |
| Joseph Donlin | 1906 | Whitings | Chicago City League | , | |||
| Edward Donnelly | donnel001edw | 1906 | 5/22-9/22 | Troy Trojans | New York State League | , | |
| Frank Donnelly | donnel002fra | 1906 | 5/3-9/16 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Andy Donovan | 1906 | 4 g. | Youngstown Ohio Works | Ohio-Pennsylvania League | , | ||
| Dan Donovan | donova050--- | 1906 | Houghton Giants | Northern-Copper Country League | , | ||
| Dan Donovan | donova050--- | 1906 | Wausau Lumberjacks | Wisconsin State League | , | ||
| Fred Donovan | donova002fre | 1906 | 5/16-6/17 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Jerry Donovan | donova001jer | 1906 | 4/12-9/21 | Philadelphia | National League | Philadelphia, PA | |
| Jerry Donovan | donova003jer | 1906 | no g. | Lynn Shoemakers | New England League | , | |
| Jerry Donovan | donova003jer | 1906 | 4/30-5/7 | Johnstown Johnnies | Tri-State League | , | |
| Jerry Donovan | donova003jer | 1906 | Ottawa-Beverlys | Independent | , | ||
| Jerry Donovan | donova003jer | 1906 | Ottawa | Northern Independent League | , | ||
| Leonard Donovan | donova001lem | 1906 | 135 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | |
| Michael Donovan | 1906 | Oswego | Empire State League | , | |||
| Michael Donovan | 1906 | 8/18-8/25 | Lynn Shoemakers | New England League | , | ||
| Mike Donovan | donova002mic | 1906 | 5/10-9/22 | Wilkes-Barre Barons | New York State League | , | |
| Patsy Donovan | 1906 | 5/15-5/27+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| Tom Donovan | donova002tho | 1906 | 5/11-9/23 | Troy Trojans | New York State League | , | |
| William Donovan | 1906 | 5/19-9/3 | Fargo | Northern-Copper Country League | , | ||
| Robert Dooin | dooin-001rob | 1906 | Cinc.-Linwood | Independent | , | ||
| Lawrence Dooley | 1906 | Punxsutawney Policemen | Interstate League | , | |||
| Frank Doran | doran-001fra | 1906 | 5/11-9/21 | Wilkes-Barre Barons | New York State League | , | |
| James Doran | 1906 | 7/2-9/8 | Richmond Colts | Virginia League | , | ||
| Tom Doran | doran-002tho | 1906 | 6/14-7/28 | Toronto Maple Leafs | Eastern League | , | |
| Tom Doran | doran-002tho | 1906 | - 8/11 | 2 g. | Boston | American League | Boston, MA |
| Tom Doran | doran-002tho | 1906 | 9/5-9/20 | Rochester Bronchos | Eastern League | , | |
| Connie Doremus | doremu001con | 1906 | 11 g. | Mobile Sea Gulls | Cotton States League | , | |
| Johnny Dorman | dorman001joh | 1906 | +7/2-7/25+ | Ottawa | Northern Independent League | , | |
| Peter Dorn | dorn--001pet | 1906 | no g. | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Gus Dorner | dorner001aug | 1906 | Cincinnati | National League | Cincinnati, OH | ||
| Gus Dorner | dorner001aug | 1906 | Boston | National League | Boston, MA | ||
| Hugh Dorrance | 1906 | Mansfield Giants | Ohio-Pennsylvania League | , | |||
| Hugh Dorrance | 1906 | +9/16+ | Euclid Beach OH | Independent | , | ||
| Dorson | 1906 | 6/11-6/12 | Darlington | South Carolina League | , | ||
| Jack Doscher | dosche001joh | 1906 | 2 g. | Brooklyn | National League | Brooklyn, NY | |
| Jack Doscher | dosche001joh | 1906 | 5/1-9/14 | Harrisburg Senators | Tri-State League | , | |
| Jacobum Dossinger | 1906 | +8/12+ | Buff.-Brooklyns | Independent | , | ||
| Edgar Doty | 1906 | 5/17-9/18+ | Tecumseh | Southern Michigan League | , | ||
| John Doubles | double001j-- | 1906 | Kane Mountaineers | Interstate League | , | ||
| Patsy Dougherty | doughe002pat | 1906 | +4/21-27+ | 12 g. | New York | American League | New York, NY |
| Patsy Dougherty | doughe002pat | 1906 | 5/15-7/6 | Lancaster Red Roses | Tri-State League | , | |
| Patsy Dougherty | doughe002pat | 1906 | +8/6+ | 75 g. | Chicago | American League | Chicago, IL |
| Tom Dougherty | doughe001tho | 1906 | 4/24-9/16 | Milwaukee Brewers | American Association | , | |
| Archibald Douglas | dougla000hug | 1906 | USNA | College | , | ||
| Archibald Douglas | dougla000hug | 1906 | USNA | College | , | ||
| Klondike Douglass | dougla004wil | 1906 | 4/12-9/14 | Little Rock Travelers | Southern Association | , | |
| Claude Douthett | 1906-07 | Rose Polytech | College | , | |||
| Dow | 1906 | 5/10-5/13 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Tommy Dowd | dowd--001tho | 1906 | 6/20-9/6 | Holyoke Paperweights | Connecticut State League | , | |
| John Dowell | dowell001joh | 1906 | 50 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | |
| Roy Dowers | dowers001roy | 1906 | Kearney NB | Independent | , | ||
| Roy Dowers | dowers001roy | 1906 | 32 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Patrick Dowling | dowlin001pat | 1906 | 4/12-4/20 | Memphis Egyptians | Southern Association | , | |
| Patrick Dowling | dowlin001pat | 1906 | 6/4-6/20 | Scranton Miners | New York State League | , | |
| Patrick Dowling | dowlin001pat | 1906 | Kane Mountaineers | Interstate League | , | ||
| Jim Downey | downey002jam | 1906 | 5/11-5/19 | Troy Trojans | New York State League | , | |
| Jim Downey | downey002jam | 1906 | 6/23-7/11 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Jim Downey | downey002jam | 1906 | 7/16 | Utica Pent-Ups | New York State League | , | |
| Jim Downey | downey002jam | 1906 | 7/22-8/12 | Wilkes-Barre Barons | New York State League | , | |
| Jim Downey | downey002jam | 1906 | 8/29-9/8 | Holyoke Paperweights | Connecticut State League | , | |
| Thomas Downey | downey002tho | 1906 | 4/28-9/3 | Tacoma Tigers | Northwestern League | , | |
| Tom Downey | downey003tho | 1906 | 4/25-9/15 | Lancaster Red Roses | Tri-State League | , | |
| Patrick Downing | downin002pat | 1906 | 4/26-5/21 | Terre Haute Hottentots | Central League | , | |
| Patrick Downing | downin002pat | 1906 | 93 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| Red Downs | downs-001jer | 1906 | 5/4-9/23 | Topeka White Sox | Western Association | , | |
| Doyle | 1906 | Princeton Univ | College | , | |||
| Doyle | 1906 | 5/2-5/7+ | Evansville River Rats | Central League | , | ||
| Doyle | 1906 | 33 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Charles Doyle | doyle-002cha | 1906 | Fresno Raisin Eaters | Pacific Coast League | , | ||
| Ed Doyle | 1906 | 8/26 | Evansville River Rats | Central League | , | ||
| Frank Doyle | doyle-001fra | 1906 | Terre Haute Hottentots | Central League | , | ||
| Frank Doyle | doyle-001fra | 1906 | 5/21-9/7 | Danville Red Sox | Virginia League | , | |
| Jack Doyle | doyle-002joh | 1906 | 7/8-9/15 | Des Moines Champs | Western League | , | |
| James Doyle | 1906-09 | Atchison KS | Independent | , | |||
| James Doyle | doyle-006jam | 1906 | 78 g. | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| James Doyle | doyle-006jam | 1906 | 8/8- | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| Larry Doyle | doyle-002law | 1906 | 91 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | |
| Slow Joe Doyle | doyle-001jud | 1906 | 5/2-8/18 | Wheeling Stogies | Central League | , | |
| Slow Joe Doyle | doyle-001jud | 1906 | 8/25- | 9 g. | New York | American League | New York, NY |
| Thomas Doyle | doyle-003tho | 1906 | 5/5-7/19 | Butte Miners | Northwestern League | , | |
| Thomas Doyle | doyle-003tho | 1906 | 7/27-9/3 | Tacoma Tigers | Northwestern League | , | |
| William Doyle | doyle-008wil | 1906 | 4/25-6/29 | Greenville Hunters | Texas League | , | |
| William Doyle | doyle-008wil | 1906 | 7/2-9/2 | Waco Navigators | Texas League | , | |
| Delos Drake | drake-002del | 1906 | -9/29 | 129 g. | Newark Cotton Tops | Ohio-Pennsylvania League | , |
| Herbert Drake | drake-002har | 1906 | Shamokin PA | Independent | , | ||
| Herbert Drake | drake-002har | 1906 | 34 g. | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| L. C. Drake | 1906 | 6/18-6/20 | Manning | South Carolina League | , | ||
| L. C. Drake | 1906 | 6/23-7/7 | Georgetown | South Carolina League | , | ||
| L. C. Drake | 1906 | 7/9-7/11 | Sumter Game Cocks | South Carolina League | , | ||
| Jack Drennan | drenna001kir | 1906 | 5/16-7/21 | Little Rock Travelers | Southern Association | , | |
| L. M. Drennan | 1906 | Georgetown Col | College | , | |||
| L. M. Drennan | 1906 | Rutland | Northern Independent League | , | |||
| L. M. Drennan | 1906 | 6/23-7/28 | Toronto Maple Leafs | Eastern League | , | ||
| L. M. Drennan | 1906 | 8/16-8/19 | Scranton Miners | New York State League | , | ||
| Bob Dresser | dresse001rob | 1906 | Hornell/Patton Pigmies | Interstate League | , | ||
| Bob Dresser | dresse001rob | 1906 | Punxsutawney Policemen | Interstate League | , | ||
| Bobby Drew | drew--001edw | 1906 | 4/27- | Fall River Indians | New England League | , | |
| Bobby Drew | drew--001edw | 1906 | -9/7 | New Bedford Whalers | New England League | , | |
| Dave Drew | drew--003--- | 1906 | 7/23-8/2 | Tulsa Oilers | South Central League | , | |
| Harold Drew | 1906 | 6/22-8/10 | Richmond Colts | Virginia League | , | ||
| Harold Drew | 1906 | Farmville VA | Independent | , | |||
| Lew Drill | drill-001lew | 1906 | 4/18-9/16 | St. Paul Saints | American Association | , | |
| Driver | 1906 | 7/26 | Lowell Tigers | New England League | , | ||
| James Drohan | drohan001jam | 1906 | 8/15-9/8 | New Bedford Whalers | New England League | , | |
| Carl Druhot | druhot001car | 1906 | 4/18- | 4 g. | Cincinnati | National League | Cincinnati, OH |
| Carl Druhot | druhot001car | 1906 | 15 g. | St. Louis | National League | St. Louis, MO | |
| Ferd Drumm | drumm-001fer | 1906 | 59 g. | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| Ferd Drumm | drumm-001fer | 1906 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | ||
| Bob Drury | drury-001rob | 1906 | 5/17-9/23 | Binghamton Bingoes | New York State League | , | |
| Edward Drury | drury-000edw | 1906 | no g. | South Texas League | , | ||
| Edward Drury | drury-000edw | 1906 | no g. | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Edward Drury | drury-000edw | 1906 | +10/7+ | Cinc.-Krebs | Independent | , | |
| Dry | 1906 | 5/13 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | ||
| J. A. DuBois | 1906 | 9/15-9/23 | Montreal Royals | Eastern League | , | ||
| Frank DuChien | duchie001fra | 1906 | 103 g. | Green Bay Colts | Wisconsin State League | , | |
| Dudley | 1906 | 5/3-6/8+ | Albany | Georgia State League | , | ||
| Dudley | 1906 | Americus Pallbearers | Georgia State League | , | |||
| Dudley | 1906 | 7/20 | Sumter Game Cocks | South Carolina League | , | ||
| Roy Dudley | dudley001roy | 1906 | , | ||||
| Duff | 1906 | Grand Rapids Wolverines | Central League | , | |||
| Pat Duff | duff--001pat | 1906 | 4/16 | Washington | American League | Washington, DC | |
| Pat Duff | duff--001pat | 1906 | +6/21+ | Pawtucket RI | Independent | , | |
| Pat Duff | duff--001pat | 1906 | +7/2-8/8+ | Rutland | Northern Independent League | , | |
| Jim Duffy | duffy-001jam | 1906 | Ormond FL | Independent | , | ||
| Jim Duffy | duffy-001jam | 1906 | 4/17-5/16 | Columbia Gamecocks | South Atlantic League | , | |
| Jim Duffy | duffy-001jam | 1906 | 6/11-8/2 | Orangeburg | South Carolina League | , | |
| John Duffy | duffy-003joh | 1906 | 4/26-8/23 | Rochester Bronchos | Eastern League | , | |
| Daniel Duggan | duggan001dan | 1906 | 4/28- | Worcester Busters | New England League | , | |
| Daniel Duggan | duggan001dan | 1906 | -8/16 | Haverhill Hustlers | New England League | , | |
| Jim Duggan | duggan001jam | 1906 | Interstate League | , | |||
| Jim Duggan | duggan001jam | 1906 | 7/18-7/20 | Atlanta Crackers | Southern Association | , | |
| Jim Duggan | duggan001jam | 1906 | 8/4-9/14 | Nashville Volunteers | Southern Association | , | |
| John Duggan | duggan001joh | 1906 | 5/2-9/14 | Nashville Volunteers | Southern Association | , | |
| Thomas Duke | duke--001tho | 1906 | 53 g. | Baton Rouge Cajuns | Cotton States League | , | |
| Thomas Duke | duke--001tho | 1906 | 8/6-8/18 | Orangeburg | South Carolina League | , | |
| Walter Dumler | 1906 | +7/26-7/29 | Terre Haute Hottentots | Central League | , | ||
| Dunbar | 1906 | +6/11+ | Muskogee Indians | South Central League | , | ||
| Clarence Dunbar | dunbar000har | 1906 | -5/ | 8 g. | Jackson Senators | Cotton States League | , |
| Clarence Dunbar | dunbar000har | 1906 | 5/18-6/30 | Waco Navigators | Texas League | , | |
| Duncan | 1906 | 5/2- | 3 g. | Mansfield Giants | Ohio-Pennsylvania League | , | |
| John Duncan | 1906 | 6/21-8/18 | Darlington | South Carolina League | , | ||
| Gus Dundon | dundon001aug | 1906 | -10/7 | 33 g. | Chicago | American League | Chicago, IL |
| Sam Dungan | dungan001sam | 1906 | Memphis Egyptians | Southern Association | , | ||
| George Dunham | 1906 | 5/23- | 5 g. | Waco Navigators | Texas League | , | |
| George Dunham | 1906 | +6/3-7/22+ | Umpire | Texas League | , | ||
| George Dunham | 1906 | 5/23-5/29 | Waco Navigators | Texas League | , | ||
| John Dunham | 1906 | +5/17-7/18 | Guthrie Senators | South Central League | , | ||
| Turk Dunham | 1906 | 5/3-6/5 | Shawnee Blues | South Central League | , | ||
| Turk Dunham | 1906 | 6/11 | Muskogee Indians | South Central League | , | ||
| Turk Dunham | 1906 | 6/20-7/1 | Shawnee Blues | South Central League | , | ||
| Turk Dunham | 1906 | 7/7-8/1 | Fort Smith Razorbacks | South Central League | , | ||
| Wiley Dunham | dunham001hen | 1906 | 5/1 | Nashville Volunteers | Southern Association | , | |
| Davy Dunkle | dunkle001edw | 1906 | 4/21-9/15 | Louisville Colonels | American Association | , | |
| Jack Dunlap | 1906 | Camden Ouachitas | Arkansas-Texas League | , | |||
| Jack Dunleavy | dunlea001joh | 1906 | 4/18-9/16 | Indianapolis Indians | American Association | , | |
| Dunn | 1906 | 12 ab | Winnipeg Maroons | Northern-Copper Country League | , | ||
| Ambrose Dunn | dunn--000amb | 1906 | 6/8 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | |
| Bert Dunn | dunn--003ber | 1906 | 5/7-5/25 | Joplin Miners | Western Association | , | |
| Bert Dunn | dunn--003ber | 1906 | 6/6-9/14 | Umpire | Western Association | , | |
| Bert Dunn | dunn--005ber | 1906 | Mobile Sea Gulls | Cotton States League | , | ||
| Bert Dunn | dunn--003ber | 1906 | Spokane | NW | , | ||
| Herbert Dunn | dunn--005ber | 1906 | 1 g. | Mobile Sea Gulls | Cotton States League | , | |
| Herbert Dunn | dunn--005ber | 1906 | 5/6-7/28 | Grays Harbor Lumbermen | Northwestern League | , | |
| Herbert Dunn | dunn--005ber | 1906 | 8/2-8/12 | Spokane Indians | Northwestern League | , | |
| Jack Dunn | dunn--005joh | 1906 | 4/26-9/20 | Providence Grays | Eastern League | , | |
| Joe Dunn | dunn--001jos | 1906 | 4/16-5/29 | Columbia Gamecocks | South Atlantic League | , | |
| Joe Dunn | dunn--001jos | 1906 | 6/11-6/13 | Sumter Game Cocks | South Carolina League | , | |
| Joe Dunn | dunn--001jos | 1906 | 6/23-8/18 | Darlington | South Carolina League | , | |
| Joe Dunn | dunn--001jos | 1906 | 8/20-9/8 | Roanoke Tigers | Virginia League | , | |
| William Dunn | dunn--001wil | 1906 | Erie Sailors | Interstate League | , | ||
| Dupey | 1906 | +6/4-6/28 | Shawnee Blues | South Central League | , | ||
| Alex Dupree | 1906 | 52 g. | Fort Worth Panthers | Texas League | , | ||
| Alexander Dupree | dupree001ale | 1906 | 4/26-9/2 | Fort Worth Panthers | Texas League | , | |
| Dan Durand | durand001h-- | 1906 | 5/8 | Springfield Midgets | Western Association | , | |
| Dan Durand | durand001h-- | 1906 | 5/13-6/14 | Iola Grays/Cherryvale Boosters | Kansas State League | , | |
| Dan Durand | durand001h-- | 1906 | 6/15-9/9 | Iola Grays/Cherryvale Boosters | Kansas State League | , | |
| Dan Durand | durand001h-- | 1906 | +8/5+ | Bartlesville Indians | Kansas State League | , | |
| Blaine Durbin | durbin001bla | 1906 | 5/4-9/23 | Joplin Miners | Western Association | , | |
| Blaine Durbin | durbin001bla | 1906-07 | St. Benedict’s Col | College | , | ||
| Bull Durham | durham001lou | 1906 | no g. | Brooklyn | National League | , | |
| Bull Durham | durham001lou | 1906 | 4/27-5/17 | Altoona Mountaineers | Tri-State League | , | |
| Bull Durham | durham001lou | 1906 | 5/23-9/15 | Lancaster Red Roses | Tri-State League | , | |
| James Durham | durham003jam | 1906 | 4/19-9/13 | Kansas City Blues | American Association | , | |
| Durkee | 1906 | 7/12 | Omaha Rourkes | Western League | , | ||
| Earl Durkee | durkee001ear | 1906 | +7/2-7/25+ | Ottawa | Northern Independent League | , | |
| Charles Durmeyer | 1906 | 61 g. | Meridian Ribboners | Cotton States League | , | ||
| Robert Durnbaugh | durnba001rob | 1906 | 5/29 | Portsmouth Truckers | Virginia League | , | |
| Ike Durrett | durret001isa | 1906 | 4/11-4/27 | Montgomery Senators | Southern Association | , | |
| Ike Durrett | durret001isa | 1906 | 5/31-9/21 | Wilkes-Barre Barons | New York State League | , | |
| Alfred Duvall | duvall001alf | 1906 | +5/31-9/23 | Jackson Convicts | Southern Michigan League | , | |
| Dwyer | 1906 | Niagara Univ. | College | , | |||
| Dwyer | 1906 | Olean Refiners | Interstate League | , | |||
| Dwyer | 1906 | 8/28-9/4 | San Antonio Bronchos | South Texas League | , | ||
| Patrick Dwyer | 1906 | 4/26-5/5 | Bridgeport Orators | Connecticut State League | , | ||
| Patrick Dwyer | 1906 | 8/28-9/8 | Fall River Indians | New England League | , | ||
| Timothy Dwyer | dwyer-001tim | 1906 | 5/10-5/30 | Albany Senators | New York State League | , | |
| Timothy Dwyer | dwyer-001tim | 1906 | 6/28-8/6 | Mansfield Giants | Ohio-Pennsylvania League | , | |
| William Dwyer | dwyer-004jam | 1906 | +5/4+ | Valdosta Stars | Georgia State League | , | |
| William Dwyer | dwyer-004jam | 1906 | 6/30-7/21 | Manning | South Carolina League | , | |
| William Dwyer | dwyer-004jam | 1906 | 7/24 | Camden | South Carolina League | , | |
| Billy Dyer | dyer--001wil | 1906 | 5/9-8/9 | Harrisburg Senators | Tri-State League | , | |
| Billy Dyer | dyer--001wil | 1906 | Rutland | Northern Independent League | , | ||
| Billy Dyer | dyer--001wil | 1906 | 8/22-8/25 | Holyoke Paperweights | Connecticut State League | , | |
| John Dyer | 1906 | 5/1-5/22 | Lowell Tigers | New England League | , | ||
| William Eads | eads--000wil | 1906 | no g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Pete Eagan | eagan-001pat | 1906 | 5/11-9/23 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Truck Eagan | eagan-001cha | 1906 | 180 g./167 g. | Fresno Raisin Eaters | Pacific Coast League | , | |
| Bobby Eager | eager-001rob | 1906 | Los Angeles Angels | Pacific Coast League | , | ||
| Howard Earl | earl--002how | 1906 | 5/11-9/23 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Billy Earle | earle-001bil | 1906 | 4/19-7/7 | Vicksburg Hill Billies | Cotton States League | , | |
| Billy Earle | earle-001bil | 1906 | 7/11-9/4 | Umpire | Cotton States League | , | |
| Edward Earley | 1906 | Punxsutawney Policemen | Interstate League | , | |||
| Christopher Earthman | 1906 | 4/25-4/28 | Cleburne Railroaders | Texas League | , | ||
| Jasper Easley | 1906 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |||
| Deworth Eason | 1906 | 6 g. | Freeport Pretzels | Wisconsin State League | , | ||
| Mal Eason | eason-001mal | 1906 | 37 g. | Brooklyn | National League | Brooklyn, NY | |
| Walter East | east--002wal | 1906 | 5/1-9/28 | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| Walter East | east--002wal | 1906 | Massillon Tigers | Ohio League | , | ||
| Frank Eastley | eastle001fra | 1906 | 5/24-7/4 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| Frank Eastley | eastle001fra | 1906 | 7/12-9/15 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Chris Eastman | eastma001chr | 1906 | 5/3-9/6 | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| DeWorth Easton | easton001dew | 1906 | +5/10+ | 6 g. | Freeport Pretzels | Wisconsin State League | , |
| George Eaton | eaton-001geo | 1906 | 4/27-6/19 | Manchester Textiles | New England League | , | |
| George Eaton | eaton-001geo | 1906 | +7/10-8/23 | Montpelier-Barre | Northern Independent | , | |
| Roy Eberly | 1906 | 4/28-5/21 | Springfield Babes | Central League | , | ||
| Roy Eberly | 1906 | 46 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Henry Eberts | eberts001hen | 1906 | Des Moines Champs | Western League | , | ||
| Henry Eberts | eberts001hen | 1906 | +9/11+ | Bluffton IN | Independent | , | |
| Warren Ebfelt | 1906 | Cuyahoga Falls | Independent | , | |||
| Warren Ebfelt | 1906 | 9/28 | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Mills Ebright | ebrigh001a-- | 1906 | U. of Missouri | College | , | ||
| Mills Ebright | ebrigh001a-- | 1906 | 56 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | |
| Andrew Ecklund | ecklun001and | 1906 | Ogden | Utah League | , | ||
| Andrew Ecklund | ecklun001and | 1906 | Basin MT | Independent | , | ||
| Andrew Ecklund | ecklun001and | 1906 | Butte-Bouchers | Independent | , | ||
| E. A. Eckman | 1906 | 9/9-9/23 | Umpire | Western Association | , | ||
| Sydney Eckstone | ecksto001sid | 1906 | Virginia Poly Inst. | College | , | ||
| Sydney Eckstone | ecksto001sid | 1906 | 4/26-9/7 | Richmond Colts | Virginia League | , | |
| Jerry Eddinger | edinge001jer | 1906 | 8/11-9/30 | Umpire | Western League | , | |
| Bob Edmondson | edmond002rob | 1906 | 124 g. | Houston Buffaloes | South Texas League | , | |
| Bob Edmondson | edmond002rob | 1906 | 9/15- | 3 g. | Washington | American League | Washington, DC |
| Sam Edmonston | edmons001sam | 1906 | Wash. Technical | High School | , | ||
| Sam Edmonston | edmons001sam | 1906 | 5/29-9/15 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | |
| Edmunds | 1906 | +7/27+ | Norwich Reds | Connecticut State League | , | ||
| Edmunds | 1906 | Waterbury Authors | Connecticut State League | , | |||
| David Edmunds | edmund002dav | 1906 | 9 g. | Lake Charles Creoles | South Texas League | , | |
| Mays Edmundson | edmund001may | 1906 | 5/24-9/15 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Edwards | 1906 | 5/2-5/3 | Pueblo Indians | Western League | , | ||
| Edwards | 1906 | 6/20-7/6 | Darlington | South Carolina League | , | ||
| Edwards | 1906 | 7/5-7/11 | Norfolk Tars | Virginia League | , | ||
| Dave Edwards | edward007dav | 1906 | 52 g. | Fargo | Northern-Copper Country League | , | |
| George Edwards | edward004geo | 1906 | 4/26-6/1 | Norfolk Tars | Virginia League | , | |
| George Edwards | edward004geo | 1906 | 6/18-9/8 | Portsmouth Truckers | Virginia League | , | |
| Ralph Edwards | 1906 | no g. | Montreal Royals | Eastern League | , | ||
| W. A. Edwards | edward002w-- | 1906 | 5/12-5/30 | Wichita Jobbers | Western Association | , | |
| W. A. Edwards | edward002w-- | 1906 | 6/2-6/8 | Leavenworth Old Soldiers | Western Association | , | |
| W. A. Edwards | edward002w-- | 1906 | 6/10-6/18 | Wichita Jobbers | Western Association | , | |
| W. A. Edwards | edward002w-- | 1906 | 6/20-7/14 | Leavenworth Old Soldiers | Western Association | , | |
| W. A. Edwards | edward002w-- | 1906 | 7/21-9/17 | Wichita Jobbers | Western Association | , | |
| Harry Eells | eells-001har | 1906 | 4/22-8/14 | Cleveland | American League | Cleveland, OH | |
| Ben Egan | egan--001art | 1906 | Penn Yan | Empire State League | , | ||
| Ben Egan | egan--001art | 1906 | 8/21-9/8 | Haverhill Hustlers | New England League | , | |
| Dick Egan | egan--001ric | 1906 | 121 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Dick Egan | egan--001ric | 1906 | Oakland Commuters | California League | , | ||
| Jack Egan | egan--001rip | 1906 | 4/18-9/16 | Umpire | American Association | , | |
| Ned Egan | egan--001edw | 1906 | 32 g. | Burlington Pathfinders | Iowa League | , | |
| Wish Egan | egan--001alo | 1906 | - 7/23 | 16 g. | St. Louis | National League | St. Louis, MO |
| Wish Egan | egan--001alo | 1906 | 7/29-9/14 | Kansas City Blues | American Association | , | |
| Charles Eggert | eggert001cha | 1906 | +8/20-9/23 | Jackson Convicts | Southern Michigan League | , | |
| Ray Egner | egner-001ray | 1906 | +8/15+ | Roeblings | Independent | , | |
| Fred Ehman | ehman-001fre | 1906 | 47 g. | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| Red Ehret | ehret-001phi | 1906 | 4/19 | Montgomery Senators | Southern Association | , | |
| Charles Eichberger | eichbe001cha | 1906 | Hobart College | College | , | ||
| Charles Eichberger | eichbe001cha | 1906 | Kane Mountaineers | Interstate League | , | ||
| Charles Eichberger | eichbe001cha | 1906 | 9/12-9/29 | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| John Eicherly | eicher000joh | 1906 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| John Eicherly | eicher000joh | 1906 | 9/10 | Harrisburg Senators | Tri-State League | , | |
| Harry Eichler | eichle001har | 1906 | 4/16-8/31 | Augusta Tourists | South Atlantic League | , | |
| Edward Eis | 1906 | +5/16+ | Moline IL | Independent | , | ||
| Guy Eisenminger | 1906 | 5/7- | Independence Coyotes | Kansas State League | , | ||
| Eisenor | 1906 | 2 g. | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| Elby | 1906 | <10 | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | ||
| Henry Eldred | eldred001hen | 1906 | 5/3-6/18+ | Albany | Georgia State League | , | |
| Eldridge | 1906 | 7/2-7/6 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Aaron Eldridge | eldrid000aar | 1906 | preseason | Umpire | Texas League | , | |
| Frank Eley | eley--001fra | 1906 | 5/13-5/26 | Syracuse Stars | New York State League | , | |
| Frank Eley | eley--001fra | 1906 | Hudson Marines | Hudson River League | , | ||
| Harry Ellerby | 1906 | Albion College | College | , | |||
| Charles Ellinor | 1906 | 5/25-6/5 | Fort Smith Razorbacks | South Central League | , | ||
| Elliott | 1906 | +7/2-8/8+ | Montpelier-Barre | Northern Independent | , | ||
| A. H.? Elliott | 1906 | 8/7-8/8 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | ||
| Claude Elliott | elliot001cla | 1906 | 4/30-5/29 | Louisville Colonels | American Association | , | |
| Claude Elliott | elliot001cla | 1906 | 7/8-9/19 | Louisville Colonels | American Association | , | |
| Edwin Elliott | elliot005cha | 1906 | Oswego | Empire State League | , | ||
| Edwin Elliott | elliot005cha | 1906 | Toronto Argonauts | , | |||
| Mylon Elliott | elliot002myr | 1906 | 5/3-9/6 | New Bedford Whalers | New England League | , | |
| Mylon Elliott | elliot002myr | 1906 | 9/10-9/22 | Providence Grays | Eastern League | , | |
| Ellis | ellis-051--- | 1906 | +4/29+ | Menasha WI | Independent | , | |
| George Ellis | ellis-003geo | 1906 | 145 g. | Los Angeles Angels | Pacific Coast League | , | |
| Harry Ellis | ellis-001har | 1906 | 5/5-5/13 | Springfield Midgets | Western Association | , | |
| Harry Ellis | ellis-001har | 1906 | 5/21-6/17 | Joplin Miners | Western Association | , | |
| Roy Ellison | 1906 | 6/5-6/8 | Waco Navigators | Texas League | , | ||
| Ellsworth | 1906 | 5/19-5/24 | Pueblo Indians | Western League | , | ||
| Puss Ellyson | 1906 | +5/29+ | Rich.-Commonwealth | Independent | , | ||
| Puss Ellyson | 1906 | +9/13+ | Rich.-Hermitage | Independent | , | ||
| Ralph Elrod | 1906 | Brown Univ. | College | , | |||
| Ralph Elrod | 1906 | Rockville CT | Independent | , | |||
| Charles Elsey | elsey-001cha | 1906 | 4/11-5/3 | Birmingham Barons | Southern Association | , | |
| Charles Elsey | elsey-001cha | 1906 | 6/21-7/9 | Umpire | Cotton States League | , | |
| Charles Elsey | elsey-001cha | 1906 | 7/14-8/7 | Vicksburg Hill Billies | Cotton States League | , | |
| Charles Elsey | elsey-001cha | 1906 | 8/9-9/4 | Mobile Sea Gulls | Cotton States League | , | |
| Charles Elston | elston001cur | 1906 | 4/18-4/19 | Columbus Senators | American Association | , | |
| Charles Elston | elston001cur | 1906 | 129 g. | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| William Elwert | elwert001wil | 1906 | 5/2-9/30 | Pueblo Indians | Western League | , | |
| Jack Elwood | 1906 | Fordham Col. | College | , | |||
| Jack Ely | ely---001joh | 1906 | 4/15-6/6 | Nashville Volunteers | Southern Association | , | |
| Jack Ely | ely---001joh | 1906 | 7/10-9/11 | Nashville Volunteers | Southern Association | , | |
| Elmer Emerson | emerso002elm | 1906 | San Jose Prune Pickers | California League | , | ||
| Ernest Endres | 1906 | 7/27 | Leavenworth Old Soldiers | Western Association | , | ||
| Ernest Endres | 1906 | Lea.-Skimey&HenryIndep | , | ||||
| Gustave Eng | eng---001gus | 1906 | +5/16+ | Clinton IL | Independent | , | |
| Gustave Eng | eng---001gus | 1906 | Moline-Muscatine | Independent | , | ||
| George Engel | engel-002geo | 1906 | 5/2-9/15 | Denver Grizzlies | Western League | , | |
| Arthur Engle | engle-001art | 1906 | 4/26-9/21 | Newark Sailors | Eastern League | , | |
| Grover Engman | 1906 | +5/9-7/4 | Biloxi MS | Independent | , | ||
| Grover Engman | 1906 | 7/8-9/4 | Baton Rouge Cajuns | Cotton States League | , | ||
| Ennis | 1906 | 5/24-5/26 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| James Ennis | ennis-002jam | 1906 | 7/16-7/28 | Springfield Ponies | Connecticut State League | , | |
| James Ennis | ennis-002jam | 1906 | 8/11- | Haverhill Hustlers | New England League | , | |
| James Ennis | ennis-002jam | 1906 | -8/31 | Lawrence Colts | New England League | , | |
| George Ensign | 1906 | 18 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | ||
| George Ensign | 1906 | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | |||
| Clyde Enslow | enslow001cly | 1906 | 5/21-6/26 | Mansfield Giants | Ohio-Pennsylvania League | , | |
| Clyde Enslow | enslow001cly | 1906 | +9/18+ | Loudonville OH | Independent | , | |
| Augustus Epler | 1906 | 5/24- | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| Edward Erickson | ericks002edw | 1906 | Forsyth MT | Independent | , | ||
| Edward Erickson | ericks002edw | 1906 | Keokuk Indians | Iowa League | , | ||
| Frank Erickson | 1906 | 120 g. | Freeport Pretzels | Wisconsin State League | , | ||
| Albert Erle | erle--002alb | 1906 | San Jose Prune Pickers | California League | , | ||
| Albert Erle | erle--002alb | 1906 | Alameda Grays | California League | , | ||
| Peter Erloff | 1906 | Chic.- | Independent | , | |||
| John Ernst | ernst-001j-- | 1906 | 4/27-9/25 | Canton Chinamen | Central League | , | |
| Joe Erwin | erwin-001--- | 1906 | 5/6-7/8+ | Chanute Browns | Kansas State League | , | |
| Joe Erwin | erwin-001--- | 1906 | +8/3-9/9 | Parsons Preachers | Kansas State League | , | |
| Tex Erwin | erwin-001ros | 1906 | 4/25-8/25+ | Fort Worth Panthers | Texas League | , | |
| Tex Erwin | erwin-001ros | 1906 | 9/2-9/17 | St. Paul Saints | American Association | , | |
| Will Eskridge | 1906 | 6/11-8/18 | Sumter Game Cocks | South Carolina League | , | ||
| Joseph Essenter | 1906 | 102 ab | Poughkeepsie Colts | Hudson River League | , | ||
| Bill Essick | essick002wil | 1906 | Portland Beavers | Pacific Coast League | , | ||
| Bill Essick | essick002wil | 1906 | 9/12- | 6 g. | Cincinnati | National League | Cincinnati, OH |
| Elmer Essler | essler001elm | 1906 | 7/24-8/25 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| John Eubank | eubank001joh | 1906 | 28 g. | Detroit | American League | Detroit, MI | |
| Jacob Eul | eul---001jac | 1906 | 5/3-9/16 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Frank Eustace | eustac003fra | 1906 | 4/27-9/8 | Manchester Textiles | New England League | , | |
| Arthur Evans | 1906 | 4/26-9/8 | Norfolk Tars | Virginia League | , | ||
| Charles Evans | 1906 | 6/22-9/22 | Freeport Pretzels | Wisconsin State League | , | ||
| Raymond Evans | 1906 | 7/12-7/31+ | South Bend Greens | Central League | , | ||
| Raymond Evans | 1906 | +8/9-8/20+ | Terre Haute Hottentots | Central League | , | ||
| Roy Evans | evans-001roy | 1906 | 4/16-5/24 | Charleston Sea Gulls | South Atlantic League | , | |
| Roy Evans | evans-001roy | 1906 | 6/7-6/30 | Augusta Tourists | South Atlantic League | , | |
| Roy Evans | evans-001roy | 1906 | 7/20-9/8 | Danville Red Sox | Virginia League | , | |
| Will Evans | evans-004wil | 1906 | 4/12-9/13 | Shreveport Pirates | Southern Association | , | |
| William Evans | 1906-27 | MLB Umpire | American League | , | |||
| William Everett | everet002wil | 1906 | 101 g. | Ottumwa Champs | Iowa League | , | |
| Frank Everhart | everha001fra | 1906 | , | ||||
| Bill Everitt | everet001wil | 1906 | 6/7 | Denver Grizzlies | Western League | , | |
| Jack Evers | evers-001joh | 1906 | 4/13-4/21 | Atlanta Crackers | Southern Association | , | |
| Jack Evers | evers-001joh | 1906 | 5/30-9/2 | Atlanta Crackers | Southern Association | , | |
| Charles Eyerman | 1906 | +6/18+ | Pitt.-Sheraden | Independent | , | ||
| Elwood Eyler | eyler-001elw | 1906 | 5/2-9/30 | Lincoln Ducklings | Western League | , | |
| George Faatz | 1906 | 5/15-5/31+ | Jackson Convicts | Southern Michigan League | , | ||
| George Faatz | 1906 | +7/10+ | Saginaw MI | Independent | , | ||
| George Faatz | 1906 | +7/13-7/22+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Faber | 1906 | +6/21-6/25+ | Battle Creek Crickets | Southern Michigan League | , | ||
| James Fagan | 1906 | 78 g. | Boone/Clinton Miners | Iowa League | , | ||
| James Fagan | 1906 | 8/17-9/3 | Duluth White Sox | Northern-Copper Country League | , | ||
| Ed Fagin | 1906 | 78 g. | Boone/Clinton Miners | Iowa League | , | ||
| Ed Fagin | 1906 | 8/17-9/3 | Duluth White Sox | Northern-Copper Country League | , | ||
| E. H. Fahey | 1906 | 5/10-5/30 | Umpire | New York State League | , | ||
| Jim Fairbank | fairba001jam | 1906 | 5/10-9/21 | Utica Pent-Ups | New York State League | , | |
| Falk | 1906 | 6/16 | Webb City Goldbugs | Western Association | , | ||
| Cy Falkenberg | falken001fre | 1906 | 40 g. | Washington | American League | Washington, DC | |
| Charlie Fallon | fallon001cha | 1906 | 4/26-9/8 | Hartford Senators | Connecticut State League | , | |
| Patrick Fallon | fallon000pat | 1906 | +8/19+ | Balt.-MapleLeaves | Independent | , | |
| Leonard Fanning | fannin002l-- | 1906 | 7/27-9/23 | Leavenworth Old Soldiers | Western Association | , | |
| George Farabaugh | 1906 | Notre Dame Col. | College | , | |||
| George Farabaugh | 1906 | 6/28-9/15 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Ed Farley | farley001edw | 1906 | 5/3-7/4 | Waterbury Authors | Connecticut State League | , | |
| Ed Farley | farley001edw | 1906 | 8/9-9/8 | Waterbury Authors | Connecticut State League | , | |
| John Farmer | 1906 | Eufaula AL | Independent | , | |||
| John Farmer | 1906 | lbany AL | Independent | , | |||
| Red Farnum | 1906 | 5/15-7/7+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Farrell | 1906 | +6/13+ | Americus Pallbearers | Georgia State League | , | ||
| Bernard Farrell | farrel001ber | 1906 | no g. | Grand Rapids Wolverines | Central League | , | |
| Bernard Farrell | farrel001ber | 1906 | 8/19-9/4 | Toledo Mud Hens | American Association | , | |
| E. S. Farrell | 1906 | 9/12 | Peoria Distillers | Illinois-Indiana-Iowa League | , | ||
| Frank Farrell | farrel002fra | 1906 | 6/8-9/15 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| John Farrell | farrel006joh | 1906 | 4/18-5/3 | Indianapolis Indians | American Association | , | |
| John Farrell | farrel006joh | 1906 | 5/13 | Columbus Senators | American Association | , | |
| Morgan Farrell | 1906 | 5/3 | Bridgeport Orators | Connecticut State League | , | ||
| Morgan Farrell | 1906 | Freeport ME | Independent | , | |||
| Morgan Farrell | 1906 | Lakeville ME | Independent | , | |||
| Morgan Farrell | 1906 | +9/8+ | Bristol CT | Independent | , | ||
| Robert Farrell | 1906 | 31 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | ||
| Robert Farrell | 1906 | Peoria Distillers | Illinois-Indiana-Iowa League | , | |||
| Frank Farris | farris001fra | 1906 | 4/28-8/31 | Dallas Giants | Texas League | , | |
| Frank Farris | farris001fra | 1906 | 9/8-9/16 | St. Paul Saints | American Association | , | |
| Farron | 1906 | +5/6+ | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Oliver Faulkner | faulkn001oli | 1906 | 4/28-5/3 | Rochester Bronchos | Eastern League | , | |
| Oliver Faulkner | faulkn001oli | 1906 | 8/18-8/31 | Baltimore Orioles | Eastern League | , | |
| Lee Faurot | faurot001lee | 1906 | 5/2-7/16 | Pueblo Indians | Western League | , | |
| G. E. Fawcett | 1906 | preseason | Duluth White Sox | Northern-Copper Country League | , | ||
| G. E. Fawcett | 1906 | +6/26+ | Jefferson IA | Independent | , | ||
| G. E. Fawcett | 1906 | 7/31 | Des Moines Champs | Western League | , | ||
| G. E. Fawcett | 1906 | +8/19+ | Cherokee Indians | Independent | , | ||
| Edward Fay | fay---001edw | 1906 | Kingston Colonials | Hudson River League | , | ||
| Joe Fay | fay---001jos | 1906 | 2 g. | Portland Beavers | Pacific Coast League | , | |
| John Fay | 1906 | Grafton WV | Independent | , | |||
| Faye | 1906 | 6/21-7/23 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Jim Feeney | feeney002jam | 1906 | 5/14 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Jim Feeney | feeney002jam | 1906 | 6/16 | Terre Haute Hottentots | Central League | , | |
| Jim Feeney | feeney002jam | 1906 | 7/16-8/11 | Sumter Game Cocks | South Carolina League | , | |
| Thomas Feeney | feeney001tho | 1906 | San Jose Prune Pickers | California League | , | ||
| Thomas Feeney | feeney003tho | 1906 | 275 ab | Kingston Colonials | Hudson River League | , | |
| Homer Feild | 1906 | 15 g. | Austin Senators | South Texas League | , | ||
| Harry Feldhaus | feldha001har | 1906 | 5/14-5/15+ | Dayton Veterans | Central League | , | |
| Edward Felrath | 1906 | +6/28-7/3+ | Jackson Convicts | Southern Michigan League | , | ||
| Edward Felrath | 1906 | +7/22-9/17+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| George Felter | 1906 | 19 g. | Austin Senators | South Texas League | , | ||
| George Felter | 1906 | Galveston Sand Crabs | South Texas League | , | |||
| John Fenlon | 1906 | 5/24-5/25 | Omaha Rourkes | Western League | , | ||
| John Fenlon | 1906 | Kearney NB | Independent | , | |||
| John Fenlon | 1906 | 6/24-6/29 | Sioux City Packers | Western League | , | ||
| John Fenlon | 1906 | 7/4-9/30 | Lincoln Ducklings | Western League | , | ||
| Curtis Fennell | 1906 | 5/3-9/9 | Chanute Browns | Kansas State League | , | ||
| Matthias Fennell | fennel001mat | 1906 | U. of Pennsylvania | College | , | ||
| Matthias Fennell | fennel001mat | 1906 | 6/15- | Elmira NY | Independent | , | |
| Roy Fennell | 1906 | no g. | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | ||
| Roy Fennell | 1906 | 6/2-6/22 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| Roy Fennell | 1906 | +7/15+ | Alto.-PPR-YMCA | Independent | , | ||
| Fredrick Fenske | fenske001fre | 1906 | 4/26-5/7 | Waterbury Authors | Connecticut State League | , | |
| Fredrick Fenske | fenske001fre | 1906 | Seneca Falls | Empire State League | , | ||
| Walter Fenske | fenske001fre | 1906 | 4/28-5/2 | Portsmouth Truckers | Virginia League | , | |
| Cecil Ferguson | fergus002geo | 1906 | New York | National League | New York, NY | ||
| Charlie Ferguson | fergus002cha | 1906 | 5/10 | St. Paul Saints | American Association | , | |
| Charlie Ferguson | fergus002cha | 1906 | 5/30-6/11 | Terre Haute Hottentots | Central League | , | |
| Charlie Ferguson | fergus002cha | 1906 | 6/18-9/18 | Umpire | Central League | , | |
| James Ferguson | fergus006jam | 1906 | 114 g. | Sharon Steels | Ohio-Pennsylvania League | , | |
| Ed Ferrell | 1906 | 4/18-8/17 | Columbia Gamecocks | South Atlantic League | , | ||
| Ed Ferrell | 1906 | +8/26+ | Peoria Distillers | Illinois-Indiana-Iowa League | , | ||
| Emanuel Ferrias | ferria001e-- | 1906 | 4/26-9/22 | South Bend Greens | Central League | , | |
| George Ferris | ferris001geo | 1906 | 4/28-9/3 | Spokane Indians | Northwestern League | , | |
| Cy Ferry | ferry-001alf | 1906 | Portland Beavers | Pacific Coast League | , | ||
| Cy Ferry | ferry-001alf | 1906 | Albany Senators | New York State League | , | ||
| Cy Ferry | ferry-001alf | 1906 | +7/2+ | Plattsburgh | Northern Independent League | , | |
| Cy Ferry | ferry-001alf | 1906 | 8/2-8/11 | Hartford Senators | Connecticut State League | , | |
| Jack Ferry | ferry-002joh | 1906-10 | Seton Hall Univ | College | , | ||
| Ed Fertsch | fertsc001edw | 1906 | 4/27-9/9 | Newark Sailors | Eastern League | , | |
| H. Claude Fetz | fetz--002cla | 1906 | 5/4-8/7 | Fort Smith Razorbacks | South Central League | , | |
| H. Claude Fetz | fetz--002cla | 1906 | 8/14-9/17 | Springfield Midgets | Western Association | , | |
| Willy Fetzer | fetzer001wil | 1906 | 6/1-9/1 | Danville Red Sox | Virginia League | , | |
| Willy Fetzer | fetzer001wil | 1906 | 9/4 | Philadelphia | American League | Philadelphia, PA | |
| Fields | 1906 | 7/4-8/7 | Fort Smith Razorbacks | South Central League | , | ||
| Homer Fields | fields001hom | 1906 | 14 g. | Austin Senators | South Texas League | , | |
| Lou Fiene | fiene-001lou | 1906 | 4/21- | Chicago | American League | Chicago, IL | |
| Peter Fife | 1906 | Columbus MS | Independent | , | |||
| Jack Fifield | fifiel001jac | 1906 | 5/11-9/18 | Syracuse Stars | New York State League | , | |
| Jack Fillman | fillma001joh | 1906 | 5/20-7/9 | Lincoln Ducklings | Western League | , | |
| Jack Fillman | fillma001joh | 1906 | 7/13-9/23 | Wichita Jobbers | Western Association | , | |
| Clarence Fink | fink--001cla | 1906 | 4/25-9/3 | Dallas Giants | Texas League | , | |
| Milton Fink | fink--001mil | 1906 | Fargo | Northern-Copper Country League | , | ||
| William Finke | 1906 | O’Connors | Clevland City League | , | |||
| William Finke | 1906 | Chic. Junction OH | Independent | , | |||
| William Finke | 1906 | 4 g. | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Billy Finn | finn--001wil | 1906 | 4/26-9/3 | New London Whalers | Connecticut State League | , | |
| Mickey Finn | finn--001duk | 1906 | 4/11-9/15 | Nashville Volunteers | Southern Association | , | |
| William Finneran | 1906 | 7/6-9/22 | Umpire | Eastern League | , | ||
| Finney | 1906 | 6/4-6/30+ | Pittsburg/Vinita Champs | Kansas State League | , | ||
| Ed Finney | finney001ed- | 1906 | 5/3-7/4 | Fort Scott Giants | Kansas State League | , | |
| Ed Finney | finney001ed- | 1906 | 7/8-7/ | Parsons Preachers | Kansas State League | , | |
| Ed Finney | finney001ed- | 1906 | +7/18-9/9 | Coffeyville Bricks | Kansas State League | , | |
| Frederic Finney | finney001fre | 1906 | 5/3-8/26+ | Parsons Preachers | Kansas State League | , | |
| Herschel Finney | finney001a-- | 1906 | +8/3-9/9 | Parsons Preachers | Kansas State League | , | |
| William Finney | finney001wil | 1906 | 5/1-7/21 | Tacoma Tigers | Northwestern League | , | |
| William Finney | finney001wil | 1906 | 8/10-9/1 | Butte Miners | Northwestern League | , | |
| P. Finnigan | 1906 | Fargo | Northern-Copper Country League | , | |||
| Patrick Finnigan | 1906 | 36 g. | Fargo | Northern-Copper Country League | , | ||
| Omar Firestine | firest001oma | 1906 | 5/3- | Fort Scott Giants | Kansas State League | , | |
| Omar Firestine | firest001oma | 1906 | 7/9-7/16 | Leavenworth Old Soldiers | Western Association | , | |
| Al. Fischer | 1906 | Muncie IN | Gas Belt | , | |||
| William Fischman | fischm001wil | 1906 | preseason | Charleston Sea Gulls | South Atlantic League | , | |
| William Fischman | fischm001wil | 1906 | 5/10-9/8 | Portsmouth Truckers | Virginia League | , | |
| Fisher | 1906 | +5/7-5/23+ | Cleburne Railroaders | Texas League | , | ||
| Fisher | 1906 | 8/6-9/15 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| August Fisher | 1906 | 8/12-9/3 | Waco Navigators | Texas League | , | ||
| Bob Fisher | fisher002rob | 1906 | Columbus/Brunswick River Snipes | Georgia State League | , | ||
| Chauncey Fisher | fisher005cha | 1906 | Anderson | Interstate Association | , | ||
| Chauncey Fisher | fisher005cha | 1906 | 8/8-9/1 | Evansville River Rats | Central League | , | |
| Chauncey Fisher | fisher005cha | 1906 | 9/18-9/25 | Umpire | Central League | , | |
| Gus Fisher | 1906 | 16 g. | Cleburne Railroaders | Texas League | , | ||
| Harry Fisher | fisher004har | 1906 | 8/29 | Harrisburg Senators | Tri-State League | , | |
| Harry Fisher | fisher006har | 1906 | Findlay/BG | Ohio Michigan League | , | ||
| Harry Fisher | fisher006har | 1906 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Harry Fisher | fisher006har | 1906 | 8/6-8/24 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Ike Fisher | fisher001ike | 1906 | , | ||||
| John Fisher | fisher007joh | 1906 | 4/20-9/16 | Indianapolis Indians | American Association | , | |
| Michael Fisher | fisher001mic | 1906 | Fresno Raisin Eaters | Pacific Coast League | , | ||
| P. R. Fisher | 1906 | 8/20-9/3 | Charleston Sea Gulls | South Atlantic League | , | ||
| Red Fisher | fisher002joh | 1906 | 81 g. | Fort Dodge Gypsumites | Iowa League | , | |
| Robert Fisher | fisher002rob | 1906 | Cordele | Georgia State League | , | ||
| Robert Fisher | fisher002rob | 1906 | 7/17-7/25 | Manning | South Carolina League | , | |
| Robert Fisher | fisher002rob | 1906 | 7/26-8/18 | Darlington | South Carolina League | , | |
| Robert Fisher | fisher002rob | 1906 | Charleston Sea Gulls | South Atlantic League | , | ||
| Robert Fisher | 1906 | 61 g. | Coffeyville Bricks | Kansas State League | , | ||
| Tom Fisher | fisher002tho | 1906 | 4/14-9/15 | Shreveport Pirates | Southern Association | , | |
| Walter Fisher | fisher001bat | 1906 | 4/28-8/13+ | Beaumont Oilers | South Texas League | , | |
| Max Fiske | fiske-001max | 1906 | 28 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | |
| Roy Fiske | fiske-001roy | 1906 | 5/2-9/13 | Pueblo Indians | Western League | , | |
| Edward Fitzgerald | 1906 | 5/3 | Haverhill Hustlers | New England League | , | ||
| George Fitzgerald | fitzge001geo | 1906 | 95 g. | Fargo | Northern-Copper Country League | , | |
| John Fitzgerald | fitzge004joh | 1906 | 62 g. | Fresno Raisin Eaters | Pacific Coast League | , | |
| John Fitzgerald | fitzge014joh | 1906 | Akron Rubbernecks | Ohio-Pennsylvania League | , | ||
| Matty Fitzgerald | fitzge001mat | 1906 | 6/11-8/8 | Utica Pent-Ups | New York State League | , | |
| Matty Fitzgerald | fitzge001mat | 1906 | 9/15- | 4 g. | New York | National League | New York, NY |
| John Fitzhenry | fitzhe004--- | 1906 | 4/26-5/10 | Hartford Senators | Connecticut State League | , | |
| John Fitzhenry | fitzhe004--- | 1906 | 8/23 | Newark Sailors | Eastern League | , | |
| Billy Fitzmaurice | fitzma001wil | 1906 | 4/27-9/8 | Lowell Tigers | New England League | , | |
| Fitzpatrick | 1906 | 5/15 | Norfolk Tars | Virginia League | , | ||
| Frank Fitzpatrick | fitzpa001fra | 1906 | 4/26-5/26 | Springfield Ponies | Connecticut State League | , | |
| Frank Fitzpatrick | fitzpa001fra | 1906 | 5/29-9/8 | New Haven Blues | Connecticut State League | , | |
| Patsy Flaherty | flaher004pat | 1906 | 4/19-9/6 | Columbus Senators | American Association | , | |
| Joe Flanagan | flanni003--- | 1906-08 | Towner ND | Independent | , | ||
| Steamer Flanagan | flanag003jam | 1906 | 4/26-9/8 | Springfield Ponies | Connecticut State League | , | |
| Steamer Flanagan | flanag003jam | 1906 | 9/11-9/22 | Rochester Bronchos | Eastern League | , | |
| Stephen Flanagan | flanag001ste | 1906 | Manchester Textiles | New England League | , | ||
| Jack Flater | flater001joh | 1906 | 5/10-9/21 | Utica Pent-Ups | New York State League | , | |
| William Fleet | fleet-001wil | 1906 | Anderson | Interstate Association | , | ||
| William Fleet | fleet-001wil | 1906 | 7/18-7/21 | Nashville Volunteers | Southern Association | , | |
| Earl Fleharty | 1906 | 5/3-6/14 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Earl Fleharty | 1906 | 6/15-7/23+ | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Earl Fleharty | 1906 | 7/30-9/23 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| Ikey Fleischman | 1906 | Portsmouth Truckers | Virginia League | , | |||
| Ikey Fleischman | 1906 | 7/16-8/18 | Georgetown | South Carolina League | , | ||
| Fleming | 1906 | 36 g. | Harrisburg Senators | Tri-State League | , | ||
| Charles Fleming | 1906 | 130 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Chuck Fleming | flemin002cha | 1906 | +4/30-6/4+ | South Bend Greens | Central League | , | |
| Chuck Fleming | flemin002cha | 1906 | Boone/Clinton Miners | Iowa League | , | ||
| Chuck Fleming | flemin002cha | 1906 | Ottumwa Champs | Iowa League | , | ||
| Frank Fleming | 1906 | no g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| Frank Fleming | 1906 | 36 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Harry Fleming | flemin002har | 1906 | 23 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| Harry Fleming | flemin002har | 1906 | +7/14-7/19+ | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Harry Fleming | flemin002har | 1906 | +8/18-8/23+ | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Ralph Fleming | 1906 | Wheeling Stogies | Central League | , | |||
| Tom Fleming | flemin003tho | 1906 | 4/26-5/26 | Holyoke Paperweights | Connecticut State League | , | |
| Tom Fleming | flemin003tho | 1906 | 6/15-7/11 | Jacksonville Jays | South Atlantic League | , | |
| Tom Fleming | flemin003tho | 1906 | 7/18-8/25 | Harrisburg Senators | Tri-State League | , | |
| Tom Fleming | flemin003tho | 1906 | - 9/29 | 25 g. | Youngstown Ohio Works | Ohio-Pennsylvania League | , |
| Fletcher | 1906 | 6/11-6/19 | Georgetown | South Carolina League | , | ||
| F. Flicke | 1906 | 5/18 | Lancaster Lanks | Ohio-Pennsylvania League | , | ||
| Henry Flock | flock-001jac | 1906 | 5/4-6/6 | Williamsport Millionaires | Tri-State League | , | |
| Henry Flock | flock-001jac | 1906 | 9/5 | Williamsport Millionaires | Tri-State League | , | |
| Flood | 1906 | +5/19+ | Cordele | Georgia State League | , | ||
| Flood | 1906 | +5/28-6/18+ | Columbus/Brunswick River Snipes | Georgia State League | , | ||
| James Flood | 1906 | 3 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| John Flood | flood-001joh | 1906 | 4/28- | 137 g. | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , |
| Tim Flood | flood-001tim | 1906 | 4/25-9/6 | Altoona Mountaineers | Tri-State League | , | |
| Tim Flood | flood-001tim | 1906 | 9/20-9/21 | Toronto Maple Leafs | Eastern League | , | |
| Frank Flory | 1906 | Hornell/Patton Pigmies | Interstate League | , | |||
| Floud | 1906 | 6/11-8/1 | Manning | South Carolina League | , | ||
| Jack Flournoy | flourn001joh | 1906 | 4/25-8/9 | Harrisburg Senators | Tri-State League | , | |
| Jack Flournoy | flourn001joh | 1906 | 8/13-9/15 | Johnstown Johnnies | Tri-State League | , | |
| Clarence Flowers | 1906 | 5/23-5/31 | Lynchburg Shoemakers | Virginia League | , | ||
| Clarence Flowers | 1906 | 6/11-7/13 | Darlington | South Carolina League | , | ||
| Clarence Flowers | 1906 | 7/17-8/14 | Camden | South Carolina League | , | ||
| Flynn | 1906 | 6/8-6/29 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Flynn | 1906 | Atlantic City NJ | Independent | , | |||
| James Flynn | flynn-001jam | 1906 | 34 g. | Freeport Pretzels | Wisconsin State League | , | |
| James Flynn | flynn-001jam | 1906 | Oshkosh Indians | Wisconsin State League | , | ||
| John Flynn | 1906 | 6/20-9/21 | Toronto Maple Leafs | Eastern League | , | ||
| Michael Flynn | flynn-003mic | 1906 | 5/11-6/12 | Sharon Steels | Ohio-Pennsylvania League | , | |
| Michael Flynn | flynn-003mic | 1906 | 6/18-7/7 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| John Fogarty | 1906 | Grand Forks Forkers | Northern-Copper Country League | , | |||
| John Fogarty | 1906 | 20 g. | Fargo | Northern-Copper Country League | , | ||
| Thomas Fogarty | fogart001tho | 1906 | Hudson Marines | Hudson River League | , | ||
| Lee Fohl | fohl--001leo | 1906 | -9/29 | 131 g. | Youngstown Ohio Works | Ohio-Pennsylvania League | , |
| Joseph Foley | 1906 | 5/11+ | Columbus/Brunswick River Snipes | Georgia State League | , | ||
| Somerby Follansbee | 1906 | 9/5-9/8 | Haverhill Hustlers | New England League | , | ||
| F. E. Folsom | 1906 | +5/18+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| Eddie Ford | ford--001edw | 1906 | 6/27-9/3 | Butte Miners | Northwestern League | , | |
| Gene Ford | ford--002eug | 1906 | 4/21-9/17 | Minneapolis Millers | American Association | , | |
| Leon Ford | 1906 | +11/18+ | NO-Praker-Blake | Independent | , | ||
| Russell Ford | ford--001rus | 1906 | 5/3-9/14 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Thomas Ford | ford--003tom | 1906 | Newark Sailors | Eastern League | , | ||
| Tim Ford | ford--001new | 1906 | +7/21+ | Chat.-SoExpress | Independent | , | |
| Frank Foreman | forema001fra | 1906 | Martinsburg WV | Independent | , | ||
| Kid Forney | forney001j-- | 1906 | Belle Plaine KS | Independent | , | ||
| Kid Forney | forney001j-- | 1906 | 6/20-6/23 | Independence Coyotes | Kansas State League | , | |
| William Forney | forney001wil | 1906 | 48 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| John Forrester | forres001joh | 1906 | 5/5-9/22 | Topeka White Sox | Western Association | , | |
| Forrey | 1906 | 9/13 | Lancaster Red Roses | Tri-State League | , | ||
| Fosnot | 1906 | 5/28 | Wichita Jobbers | Western Association | , | ||
| Fosnot | 1906 | +7/15+ | Wich.-Cudahy | Independent | , | ||
| Foster | 1906 | Darlington | South Carolina League | , | |||
| Foster | 1906 | 3 g. | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Clarence Foster | foster001cla | 1906 | 4/26-8/5 | Newark Sailors | Eastern League | , | |
| Clarence Foster | foster001cla | 1906 | 8/6-9/15 | Lancaster Red Roses | Tri-State League | , | |
| Ed Foster | foster004edw | 1906 | 5/5-6/26+ | Cordele | Georgia State League | , | |
| Ed Foster | foster004edw | 1906 | 7/20-8/16 | Darlington | South Carolina League | , | |
| Ed Foster | foster004edw | 1906 | 8/23-9/3 | Charleston Sea Gulls | South Atlantic League | , | |
| Edward Foster | foster001edm | 1906 | Bradford Drillers | Interstate League | , | ||
| Edward Foster | 1906 | Chic.-WhiteRocks | Chicago City League | , | |||
| Edward Foster | 1906 | 7/2-9/9 | Coffeyville Bricks | Kansas State League | , | ||
| Floyd Foster | 1906 | 5/10 | Independence Coyotes | Kansas State League | , | ||
| Floyd Foster | 1906 | 6/16-6/17 | Independence Coyotes | Kansas State League | , | ||
| Floyd Foster | 1906 | 6/23-6/24 | Coffeyville Bricks | Kansas State League | , | ||
| Reddy Foster | foster001red | 1906 | 4/26 | Richmond Colts | Virginia League | , | |
| Reddy Foster | foster001red | 1906 | 5/7-6/15 | Portsmouth Truckers | Virginia League | , | |
| Reddy Foster | foster001red | 1906 | 6/20-9/6 | Norfolk Tars | Virginia League | , | |
| Samuel Foster | foster001sam | 1906 | 125 g. | Keokuk Indians | Iowa League | , | |
| Thomas Foster | 1906 | 8/18-9/15 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| William Foster | foster003wil | 1906 | Lake Linden Sandy Cities | Northern-Copper Country League | , | ||
| William Foster | foster003wil | 1906 | +7/23+ | Hancock Infants | Northern-Copper Country League | , | |
| William Foster | foster003wil | 1906 | 84 g. | Fargo | Northern-Copper Country League | , | |
| Jimmy Foulks | foulks001jam | 1906 | 33 g. | Calumet Aristocrats | Northern-Copper Country League | , | |
| Fountain | 1906 | +8/9-8/29 | Saginaw | Southern Michigan League | , | ||
| Fowlkes | fowlke005--- | 1906 | +5/31+ | Conder School | , | ||
| Fox | fox---001aug | 1906 | Kane Mountaineers | Interstate League | , | ||
| Bill Fox | fox---006wil | 1906 | 4/18-9/17 | Minneapolis Millers | American Association | , | |
| Charley Fox | fox---003cha | 1906 | +5/16-6/22 | Terre Haute Hottentots | Central League | , | |
| Charley Fox | fox---003cha | 1906 | +6/27-9/25 | Springfield Babes | Central League | , | |
| Clarence Fox | fox---001cla | 1906 | 4/16-9/3 | Charleston Sea Gulls | South Atlantic League | , | |
| George Fox | fox---001pad | 1906 | - 9/29 | 110 g. | Mansfield Giants | Ohio-Pennsylvania League | , |
| Jack Fox | fox---004joh | 1906 | 5/10-9/23 | Albany Senators | New York State League | , | |
| Jim Fox | fox---001jam | 1906 | 4/11-9/15 | Atlanta Crackers | Southern Association | , | |
| Joe Fox | 1906 | Poughkeepsie Colts | Hudson River League | , | |||
| John Fox | fox---001joh | 1906 | 4/16-9/3 | Macon Brigands | South Atlantic League | , | |
| John Fox | fox---001joh | 1906 | 9/8-9/14 | Atlanta Crackers | Southern Association | , | |
| John Fox | 1906 | Read.-P&R | Independent | , | |||
| William Fox | 1906 | 54 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| Bill Foxen | foxen-001wil | 1906 | Jersey City Skeeters | Eastern League | , | ||
| Leon Foy | foy---002leo | 1906 | 4/29-9/25 | Canton Chinamen | Central League | , | |
| Walter Frambes | 1906 | U. of Pennsylvania | College | , | |||
| Walter Frambes | 1906 | +8/9-8/29+ | Millville NJ | Independent | , | ||
| E. E. France | 1906 | Kent OH | Independent | , | |||
| Francis | 1906 | 5/2 | Houston Buffaloes | South Texas League | , | ||
| Francis | 1906 | +7/25-8/23+ | Burlington | Northern Independent League | , | ||
| Howard Francis | 1906 | 7/7 | Memphis Egyptians | Southern Association | , | ||
| Ike Francis | franci002isa | 1906 | +4/30-6/21 | South Bend Greens | Central League | , | |
| Ike Francis | franci002isa | 1906 | 6/24-9/25 | Grand Rapids Wolverines | Central League | , | |
| Buck Francks | franck001cha | 1906 | 179 g. | Oakland Oaks | Pacific Coast League | , | |
| Charlie Frank | frank-003cha | 1906 | 4/11-9/15 | New Orleans Pelicans | Southern Association | , | |
| Eddie Frank | frank-001edw | 1906 | 5/18-6/25 | Toledo Mud Hens | American Association | , | |
| Eddie Frank | frank-001edw | 1906 | 7/10-9/21 | Toronto Maple Leafs | Eastern League | , | |
| George Frank | frank-001geo | 1906 | Penn Yan | Empire State League | , | ||
| Ernest Franklin | frankl001ern | 1906 | 4/29-7/29 | Spokane Indians | Northwestern League | , | |
| George Franklin | 1906 | Umpire | Clevland City League | , | |||
| George Franklin | 1906 | 6/7-6/22+ | Umpire | Ohio-Pennsylvania League | , | ||
| Franks | 1906 | +8/5+ | Toronto Maple Leafs | Eastern League | , | ||
| Orville Frantz | frantz002--- | 1906 | 4/19 | Guthrie OK | Independent | , | |
| Orville Frantz | frantz002--- | 1906 | Vice President | South Central League | , | ||
| Walter Frantz | frantz001wal | 1906 | 4/20-9/16 | Kansas City Blues | American Association | , | |
| Ralph Frary | frary-001ral | 1906 | 11 g. | Seattle Siwashes | Pacific Coast League | , | |
| Ralph Frary | frary-001ral | 1906 | 5/26-6/16 | Nashville Volunteers | Southern Association | , | |
| Ralph Frary | frary-001ral | 1906 | 6/17 | Shreveport Pirates | Southern Association | , | |
| Ralph Frary | frary-001ral | 1906 | 6/18-9/14 | Nashville Volunteers | Southern Association | , | |
| J. Frazer | 1906 | 9/4 | Providence Grays | Eastern League | , | ||
| Dotty Freck | freck-001cha | 1906 | preseason | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Otto Fredericks | freder001ott | 1906 | +5/21-6/16+ | Temple Boll Weevils | Texas League | , | |
| Otto Fredericks | freder001ott | 1906 | 18 g. | San Antonio Bronchos | South Texas League | , | |
| Otto Fredericks | freder001ott | 1906 | 8/3-9/9 | Chanute Browns | Kansas State League | , | |
| Theodore Frederickson | freder001the | 1906 | 79 g. | Green Bay Colts | Wisconsin State League | , | |
| Theodore Frederickson | freder001the | 1906 | La Crosse Pinks | Wisconsin State League | , | ||
| Buck Freeman | freema003joh | 1906 | 121 g. | Boston | American League | Boston, MA | |
| James Freeman | freema004jam | 1906 | 4/28-9/23 | Evansville River Rats | Central League | , | |
| Jerry Freeman | freema001fra | 1906 | 5/23-9/17 | Minneapolis Millers | American Association | , | |
| Harry Freese | freese001har | 1906 | 5/17-10/1 | Sioux City Packers | Western League | , | |
| Charles Freine | 1906 | +9/30-10/7+ | San Jose Prune Pickers | California League | , | ||
| Gus Freitag | frieta001gus | 1906 | 31 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | |
| Tony Fremer | fremer001ant | 1906 | 4/26-9/25 | Evansville River Rats | Central League | , | |
| French | 1906 | San Francisco Orphans | California League | , | |||
| Charlie French | french001cha | 1906 | 44 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | |
| Charlie French | french001cha | 1906 | 7/4-9/25 | Evansville River Rats | Central League | , | |
| Johnson French | french001tho | 1906 | 5/11-7/22 | Tulsa Oilers | South Central League | , | |
| Johnson French | french001tho | 1906 | 7/30-8/3 | Muskogee Indians | South Central League | , | |
| Win French | french001win | 1906 | 8 g. | Portland Beavers | Pacific Coast League | , | |
| Win French | french001win | 1906 | 8/18-9/3 | Tacoma Tigers | Northwestern League | , | |
| Ernest Frick | frick-001jam | 1906 | 4/26-8/29 | Toronto Maple Leafs | Eastern League | , | |
| George Frickie | fricki001geo | 1906 | 6 g. | San Antonio Bronchos | South Texas League | , | |
| Bill Friel | friel-001wil | 1906 | 4/18-9/16 | Columbus Senators | American Association | , | |
| Joseph Friel | 1906 | 4/30-7/1 | Springfield Babes | Central League | , | ||
| Joseph Friel | 1906 | 7/4-9/15 | Wheeling Stogies | Central League | , | ||
| Danny Friend | friend002dan | 1906 | 5/4 | Altoona Mountaineers | Tri-State League | , | |
| John Frill | frill-001joh | 1906 | 4/27-8/16 | Springfield Ponies | Connecticut State League | , | |
| John Frill | frill-001joh | 1906 | 9/3 | Bridgeport Orators | Connecticut State League | , | |
| Charlie Frisbee | frisbe001cha | 1906 | 24 g. | Waterloo Microbes | Iowa League | , | |
| Emil Frisk | frisk-001joh | 1906 | 4/18-8/23 | St. Paul Saints | American Association | , | |
| Charlie Fritz | fritz-001cha | 1906 | 4/12-9/14 | Shreveport Pirates | Southern Association | , | |
| Emile Fritz | fritz-001emi | 1906 | 4/24-6/9 | Shreveport Pirates | Southern Association | , | |
| Emile Fritz | fritz-001emi | 1906 | 7/26-8/3 | Mobile Sea Gulls | Cotton States League | , | |
| Sam Frock | frock-001sam | 1906 | 4/27-9/6 | Worcester Busters | New England League | , | |
| Edward Frome | from--002edw | 1906 | 4/22-4/25 | Indianapolis Indians | American Association | , | |
| Edward Frome | from--002edw | 1906 | 5/31-7/17 | Dayton Veterans | Central League | , | |
| Edward Frome | from--002edw | 1906 | 7/24-9/22 | Wichita Jobbers | Western Association | , | |
| Art Fromme | fromme001art | 1906 | 5/4-9/6 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Art Fromme | fromme001art | 1906 | 9/14- | 3 g. | St. Louis | National League | St. Louis, MO |
| A. R. Frost | 1906 | 6/18-6/26 | Georgetown | South Carolina League | , | ||
| A. R. Frost | 1906 | 8/2-8/15 | Georgetown | South Carolina League | , | ||
| Jack Frost | frost-001joh | 1906 | 5/2-8/30 | Sioux City Packers | Western League | , | |
| W. H. Frost | 1906 | 5/15-6/2+ | Battle Creek Crickets | Southern Michigan League | , | ||
| W. H. Frost | 1906 | 6/14+ | Bay City MI | Independent | , | ||
| W. H. Frost | 1906 | +10/14+ | Saginaw MI | Independent | , | ||
| William Frye | frye--001wil | 1906 | 5/2 | Richmond Colts | Virginia League | , | |
| Jesse Frysinger | frysin001jes | 1906 | , | ||||
| Charles Fuller | fuller003cha | 1906 | 4/27-9/25 | Evansville River Rats | Central League | , | |
| Peter Fuller | 1906 | 5/2-6/15 | Umpire | Western League | , | ||
| Windsor Fulmer | fulmer001win | 1906 | 4/27-9/8 | Lawrence Colts | New England League | , | |
| Robert Fulton | 1906-07 | Wash. & Jeff. Col | College | , | |||
| John Furlong | furlon001joh | 1906 | 5/15-9/23 | Kalamazoo White Sox | Southern Michigan League | , | |
| Furman | 1906 | 6/11-6/25 | Manning | South Carolina League | , | ||
| Arthur Fury | 1906 | Kansas State U. | College | , | |||
| Arthur Fury | 1906 | Leonardville KS | Independent | , | |||
| Frederick Gaarde | 1906-09 | Univ. of Chicago | College | , | |||
| Edward Gagnier | gagnie001edw | 1906 | 51 g. | Ottumwa Champs | Iowa League | , | |
| Edward Gagnier | gagnie001edw | 1906 | 7/21-9/30 | Lincoln Ducklings | Western League | , | |
| Fred Gaiser | gaiser001fre | 1906 | Connellsville PA | Independent | , | ||
| Fred Gaiser | gaiser001fre | 1906 | Atlantic City | Independent | , | ||
| Joseph Galaski | galask001jos | 1906 | 5/30 | Buffalo Bisons | Eastern League | , | |
| Joseph Galaski | galask001jos | 1906 | 7/2-9/22 | Albany Senators | New York State League | , | |
| Joseph Galgano | 1906 | +5/13+ | Denv.-Garnitas | Independent | , | ||
| Joseph Galgano | 1906 | 6/17 | Lincoln Ducklings | Western League | , | ||
| Eddie Gallagher | gallag001edd | 1906 | Umpire | South Texas League | , | ||
| Harry Galvin | 1906 | 8/31-9/8 | Lowell Tigers | New England League | , | ||
| Neil Gamble | gamble001mac | 1906 | Memphis Univ. | College | , | ||
| Robert Gamble | gamble002rob | 1906 | Memphis Univ. | College | , | ||
| Arnold Gandil | 1906 | 1 g. | Los Angeles Angels | Pacific Coast League | , | ||
| Arnold Gandil | 1906 | 1 g. | Fresno Raisin Eaters | Pacific Coast League | , | ||
| James Ganier | ganier001jam | 1906 | 5/24-9/15 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | |
| Bob Ganley | ganley002rob | 1906 | 137 g. | Pittsburgh | National League | Pittsburgh, PA | |
| Bill Gannon | gannon002wil | 1906 | 4/25-8/1 | Altoona Mountaineers | Tri-State League | , | |
| Bill Gannon | gannon002wil | 1906 | 8/10-8/26 | Albany Senators | New York State League | , | |
| George Ganzel | ganzel001geo | 1906 | Flint MI | Independent | , | ||
| Joe Ganzel | ganzel001jos | 1906 | 5/3-7/3 | Erie Sailors | Interstate League | , | |
| Joe Ganzel | ganzel001jos | 1906 | +8/8+ | Flint MI | Independent | , | |
| Joe Ganzel | ganzel001jos | 1906 | +8/29-9/23 | Battle Creek Crickets | Southern Michigan League | , | |
| John Ganzel | ganzel001joh | 1906 | 4/26-9/24. | Grand Rapids Wolverines | Central League | , | |
| Earle Gardner | gardne001ear | 1906 | 103 g. | Austin Senators | South Texas League | , | |
| Elmer Gardner | 1906 | 82 g. | Freeport Pretzels | Wisconsin State League | , | ||
| Indian Gardner | gardne000ind | 1906 | 5/25-5/30 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Indian Gardner | gardne000ind | 1906 | WashDC- | Independent | , | ||
| Larry Gardner | gardne004wil | 1906-08 | Univ. Vermont | College | , | ||
| Larry Gardner | gardne004wil | 1906 | Burlington | Northern Independent League | , | ||
| Luther Gardner | gardne001lut | 1906 | 4/9-9/14 | Meridian Ribboners | Cotton States League | , | |
| Emanuel Garibaldi | 1906 | San Francisco Orphans | California League | , | |||
| John Garlic | garlic001joh | 1906 | 26 g. | Wausau Lumberjacks | Wisconsin State League | , | |
| John Garlic | garlic001joh | 1906 | Oshkosh Indians | Wisconsin State League | , | ||
| Jesse Garrett | 1906 | 5/5-9/1 | Dallas Giants | Texas League | , | ||
| F. Garrety | 1906 | 7/6 | Wichita Jobbers | Western Association | , | ||
| F. Garrety | 1906 | +7/15+ | Wich.-Cudahy | Independent | , | ||
| Joseph Garrity | garrit001jos | 1906 | 139 g. | Hudson Marines | Hudson River League | , | |
| Jim Garry | garry-001jim | 1906 | 5/11-6/16 | Troy Trojans | New York State League | , | |
| Jim Garry | garry-001jim | 1906 | Glens Falls-Saratoga Springs | Hudson River League | , | ||
| Jim Garry | garry-001jim | 1906 | 9/13-9/14 | Albany Senators | New York State League | , | |
| Thomas Garvey | 1906 | Punxsutawney Policemen | Interstate League | , | |||
| Leo Garvin | garvin001lee | 1906 | 5/19-9/15 | Birmingham Barons | Southern Association | , | |
| Ned Garvin | garvin001vir | 1906 | 46 g. | Seattle Siwashes | Pacific Coast League | , | |
| Ned Garvin | garvin001vir | 1906 | Portland Beavers | Pacific Coast League | , | ||
| Prince Gaskell | 1906 | 31 g. | Houston Buffaloes | South Texas League | , | ||
| Harry Gaspar | gaspar001har | 1906 | 47 g. | Wausau Lumberjacks | Wisconsin State League | , | |
| Edward Gastmeyer | gastme001edw | 1906 | 4/26-9/8 | Hartford Senators | Connecticut State League | , | |
| William Gaston | gaston003wil | 1906 | 117 g. | Meridian Ribboners | Cotton States League | , | |
| Fred Gatcomb | 1906 | 8/16-9/7 | Lawrence Colts | New England League | , | ||
| Frank Gatins | gatins001fra | 1906 | 4/26-9/21 | Newark Sailors | Eastern League | , | |
| Clyde Gay | gay---001cly | 1906 | Terre Haute Hottentots | Central League | , | ||
| Clyde Gay | gay---001cly | 1906 | Evansville River Rats | Central League | , | ||
| Dale Gear | gear--001dal | 1906 | 4/11-9/15 | Birmingham Barons | Southern Association | , | |
| Ducky Gearhart | 1906 | 4/17-4/20 | Savannah Indians | South Atlantic League | , | ||
| Gebhardt | 1906 | 6/13- | San Antonio Bronchos | South Texas League | , | ||
| Gebhardt | 1906 | -6/23 | Galveston Sand Crabs | South Texas League | , | ||
| Henry Gebhardt | 1906 | West RoxburyMA | Independent | , | |||
| Henry Gebhardt | 1906 | Jamaica PlainAC | Independent | , | |||
| Robert Geddes | geddes001rob | 1906 | no g. | New Orleans Pelicans | Southern Association | , | |
| Robert Geddes | geddes001rob | 1906 | 55 g. | Baton Rouge Cajuns | Cotton States League | , | |
| James Geer | geer--001jam | 1906 | preseason | Webb City Goldbugs | Western Association | , | |
| James Geer | geer--001jam | 1906 | 5/18-7/20 | Guthrie Senators | South Central League | , | |
| James Geer | geer--001jam | 1906 | 7/26-8/7 | Webb City Goldbugs | Western Association | , | |
| Dutch Gehman | 1906 | Beth.-East Ends | Independent | , | |||
| Gehring | 1906 | Penn Yan | Empire State League | , | |||
| Gehring | 1906 | Temple Boll Weevils | Texas League | , | |||
| Hank Gehring | gehrin001hen | 1906 | 4/20-9/16 | Minneapolis Millers | American Association | , | |
| Phil Geier | geier-001phi | 1906 | 4/18-9/17 | St. Paul Saints | American Association | , | |
| Robert Geiselman | geisel000bob | 1906 | +5/19+ | Hibbling MN | Independent | , | |
| Frank Genins | genins001c-- | 1906 | 5/4-6/12 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Frank Genins | genins001c-- | 1906 | 6/14-9/23 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| William George | 1906 | 62 g. | La Crosse Pinks | Wisconsin State League | , | ||
| Frank Gerard | gerard001fra | 1906 | Charleston Sea Gulls | South Atlantic League | , | ||
| Ray Gerber | gerber001ray | 1906 | Paterson Intruders | Hudson River League | , | ||
| Richard Germaine | 1906 | 5/15-7/13+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| Richard Germaine | 1906 | +9/9 | Charlotte MI | Independent | , | ||
| Germann | 1906 | 9/3-9/4 | Norfolk Tars | Virginia League | , | ||
| Gesseman | 1906 | 5/19-5/24 | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Doc Gessler | gessle001har | 1906 | 9 g. | Brooklyn | National League | Brooklyn, NY | |
| Doc Gessler | gessle001har | 1906 | 34 g. | Chicago | National League | Chicago, IL | |
| Charlie Gettig | gettig002cha | 1906 | Atlanta Crackers | Southern Association | , | ||
| Charlie Gettig | gettig002cha | 1906 | Sparrows PointMD | Independent | , | ||
| Tom Gettinger | gettin001tom | 1906 | 111 g. | Jackson Senators | Cotton States League | , | |
| Jake Gettman | gettma001jac | 1906 | 4/26-9/21 | Buffalo Bisons | Eastern League | , | |
| Jacob Geyer | geyer-001jac | 1906 | 4/11-5/11 | Nashville Volunteers | Southern Association | , | |
| Jacob Geyer | geyer-001jac | 1906 | 26 g. | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| John Geyer | geyer-001joh | 1906 | 4/26-9/25 | Grand Rapids Wolverines | Central League | , | |
| Roy Geyer | 1906 | 62 g. | La Crosse Pinks | Wisconsin State League | , | ||
| Roy Geyer | 1906 | Green Bay Colts | Wisconsin State League | , | |||
| Ollie Gfroerer | gfroer001oli | 1906 | 4/25-9/3 | Fort Worth Panthers | Texas League | , | |
| Herbert Gianelli | 1906 | Buff.-Bunker Hill | Independent | , | |||
| Frank Gibbons | 1906 | Runnells IA | Independent | , | |||
| William Gibbons | 1906 | Runnells Ia | Independent | , | |||
| Gibbs | 1906 | Baker Univ. | College | , | |||
| Gibbs | 1906 | 6/1-6/14 | Chanute Browns | Kansas State League | , | ||
| Gibbs | 1906 | 4/26-5/8 | Roanoke Tigers | Virginia League | , | ||
| Frederick Gibbs | 1906 | Biddeford ME | Independent | , | |||
| Gibeau | 1906 | +5/21-6/7+ | Grand Forks Forkers | Northern-Copper Country League | , | ||
| William Giblin | 1906 | 8/12-9/9 | Coffeyville Bricks | Kansas State League | , | ||
| Gibson | 1906 | 6/5-6/6 | Springfield Midgets | Western Association | , | ||
| Gibson | 1906 | 6/23 | Cleburne Railroaders | Texas League | , | ||
| Charlie Gibson | gibson006cha | 1906 | 5 g. | Sharon Steels | Ohio-Pennsylvania League | , | |
| George Gibson | gibson002geo | 1906 | 81 g. | Pittsburgh | National League | Pittsburgh, PA | |
| Norwood Gibson | gibson001nor | 1906 | - 5/18 | 5 g. | Boston | American League | Boston, MA |
| Norwood Gibson | gibson001nor | 1906 | 6/22-7/14 | Harrisburg Senators | Tri-State League | , | |
| Ralph Gibson | gibson001ral | 1906 | , | ||||
| Roy Gibson | 1906 | 5/12 | Decatur Commodores | Illinois-Indiana-Iowa League | , | ||
| Edward Giencke | 1906 | 5/19-7/ | Grand Forks Forkers | Northern-Copper Country League | , | ||
| Edward Giencke | 1906 | +8/24+ | 37 g. | Wausau Lumberjacks | Wisconsin State League | , | |
| Bill Giese | 1906 | +8/31+ | Dave-Independents | Independent | , | ||
| William Giffen | 1906 | 70 g. | Marshalltown Brownies | Iowa League | , | ||
| Billy Gilbert | gilber002wil | 1906 | 104 g. | New York | National League | New York, NY | |
| Jack Gilbert | gilber005joh | 1906 | 4/11-8/11 | Nashville Volunteers | Southern Association | , | |
| Jack Gilbert | gilber005joh | 1906 | 8/14-9/15 | Little Rock Travelers | Southern Association | , | |
| John Gilbert | 1906 | Chic.-WhiteRocks | Independent | , | |||
| John Gilbert | 1906 | 6/28-9/7 | Coffeyville Bricks | Kansas State League | , | ||
| Rufus Gilbert | gilber001ruf | 1906 | Kalamazoo | College | , | ||
| Rufus Gilbert | gilber001ruf | 1906 | Columbia Gamecocks | South Atlantic League | , | ||
| Denison Giles | giles-001d-- | 1906 | 5/14-5/26 | Danville Red Sox | Virginia League | , | |
| Bob Gilks | gilks-001rob | 1906 | 6/6-7/9 | Shreveport Pirates | Southern Association | , | |
| Roy Gill | gill--002roy | 1906 | 5/5- | Fort Scott Giants | Kansas State League | , | |
| Roy Gill | gill--002roy | 1906 | 6/9-9/22 | Webb City Goldbugs | Western Association | , | |
| Warren Gill | gill--001war | 1906 | 127 g. | Austin Senators | South Texas League | , | |
| John Gilland | gillan000des | 1906 | 6/11-8/17 | Georgetown | South Carolina League | , | |
| Grover Gillen | gillen001gro | 1906 | 4/28-6/12 | Toledo Mud Hens | American Association | , | |
| Grover Gillen | gillen001gro | 1906 | 50 g. | Des Moines Champs | Western League | , | |
| Gillespie | 1906 | 6/11-6/19 | Sumter Game Cocks | South Carolina League | , | ||
| Gillespie | 1906 | 6/29-7/7 | Manning | South Carolina League | , | ||
| Frank Gilliam | gillia001fra | 1906 | 13 g. | Galveston Sand Crabs | South Texas League | , | |
| Eddie Gilligan | gillig001edw | 1906 | 25 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| Eddie Gilligan | gillig001edw | 1906 | 6/16- | 96 g. | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , |
| George Gillpatrick | gillpa001geo | 1906 | preseason | Nashville Volunteers | Southern Association | , | |
| Thomas Gilroy | gilroy001tho | 1906 | 5/21-9/7 | Fall River Indians | New England League | , | |
| Frank Gimlin | gimlin001joh | 1906 | 8/4-9/3 | Spokane Indians | Northwestern League | , | |
| Patrick Ginley | ginley001pat | 1906 | no g. | Lawrence Colts | New England League | , | |
| Wilford Gladfelter | 1906 | 5/24-9/15 | Washington | Pennsylvania-Ohio-Maryland League | , | ||
| Glass | 1906 | 7/13 | Georgetown | South Carolina League | , | ||
| William Glassburner | glassb001wil | 1906 | 73 g. | Sharon Steels | Ohio-Pennsylvania League | , | |
| Eddie Glavin | glavin001edw | 1906 | 5/6-5/30+ | Terre Haute Hottentots | Central League | , | |
| Glaze | 1906 | 8/22-9/3 | Danville Red Sox | Virginia League | , | ||
| Herbert Glaze | 1906 | 6/18-8/18 | Orangeburg | South Carolina League | , | ||
| Ralph Glaze | glaze-001dan | 1906 | 5/24- | 22 g. | Boston | American League | Boston, MA |
| William Glaze | glaze-001w-- | 1906 | 6/11-8/17 | Orangeburg | South Carolina League | , | |
| Harry Gleason | gleaso001har | 1906 | 4/25-9/14 | Williamsport Millionaires | Tri-State League | , | |
| John Gleason | 1906 | 4/26-6/20 | Umpire | Connecticut State League | , | ||
| Kid Gleason | gleaso002wil | 1906 | 135 g. | Philadelphia | National League | Philadelphia, PA | |
| William Gleason | gleaso004wil | 1906 | 93 g. | Oshkosh Indians | Wisconsin State League | , | |
| Martin Glendon | glendo001mar | 1906 | 4/28-8/15 | Johnstown Johnnies | Tri-State League | , | |
| Martin Glendon | glendo001mar | 1906 | 8/17 | York Penn Parks | Tri-State League | , | |
| Martin Glendon | glendo001mar | 1906 | 8/21-9/14 | Altoona Mountaineers | Tri-State League | , | |
| Ed Glenn | glenn-001edw | 1906 | 4/16-5/24 | Augusta Tourists | South Atlantic League | , | |
| Ed Glenn | glenn-001edw | 1906 | 5/29-8/19 | Charleston Sea Gulls | South Atlantic League | , | |
| Ed Gnadinger | gnadin001edw | 1906 | 4/16-7/12 | Jacksonville Jays | South Atlantic League | , | |
| Ed Gnadinger | gnadin001edw | 1906 | 7/16-9/3 | Columbia Gamecocks | South Atlantic League | , | |
| John Gochnaur | gochna001joh | 1906 | San Francisco Seals | Pacific Coast League | , | ||
| John Gochnaur | gochna001joh | 1906 | Los Angeles Angels | Pacific Coast League | , | ||
| John Godwin | godwin001joh | 1906 | 66 g. | Boston | American League | Boston, MA | |
| John Godwin | godwin001joh | 1906 | 2 g. | Seattle Siwashes | Pacific Coast League | , | |
| Goehring | 1906 | 4/27 | Temple Boll Weevils | Texas League | , | ||
| Edmund Goes | goes--001edw | 1906 | 5/3-5/7 | Pittsburg/Vinita Champs | Kansas State League | , | |
| Edmund Goes | goes--001edw | 1906 | 5/16-9/23 | Springfield Midgets | Western Association | , | |
| Edward Goettel | 1906 | +7/2+ | 75 ab | Kingston Colonials | Hudson River League | , | |
| John Golden | golden002joh | 1906 | 4/26-9/8 | Norwich Reds | Connecticut State League | , | |
| Fred Goldsmith | 1906 | 101 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Johnny Gonding | gondin001joh | 1906 | 5/2-9/30 | Omaha Rourkes | Western League | , | |
| Valentin Gonzalez | 1906 | Habana | Cuban Winter League | , | |||
| Valentin Gonzalez | 1906 | Habana | Cuban Winter League | , | |||
| Valentin Gonzalez | 1906 | 7/11-9/13 | Jacksonville Jays | South Atlantic League | , | ||
| Gene Good | good--001eug | 1906 | 4/12- | Boston | National League | Boston, MA | |
| Gene Good | good--001eug | 1906 | 6/24-6/30 | Providence Grays | Eastern League | , | |
| Gene Good | good--001eug | 1906 | -9/9 | Boston | National League | Boston, MA | |
| Walter Good | 1906 | Denv.-Garnitas | Independent | , | |||
| Wilbur Good | good--002wil | 1906 | 4/27-5/8 | Montreal Royals | Eastern League | , | |
| Wilbur Good | good--002wil | 1906 | 5/17-6/4 | Johnstown Johnnies | Tri-State League | , | |
| Wilbur Good | good--002wil | 1906 | 6/19- | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Wilbur Good | good--002wil | 1906 | +7/21 | Burlington | Northern Independent League | , | |
| Wilbur Good | good--002wil | 1906 | 8/16-8/20 | Johnstown Johnnies | Tri-State League | , | |
| William Goode | 1906 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | |||
| William Goode | 1906 | Kansas City Blues | American Association | , | |||
| Doc Goodell | goodal001doc | 1906 | 5/22- | Independence Coyotes | Kansas State League | , | |
| Goodman | 1906 | 6/2-9/1 | Umpire | Western Association | , | ||
| Clyde Goodman | 1906 | Bluffton IN | Independent | , | |||
| Clarence Goodrich | 1906 | 5/5-5/19+ | Columbus/Brunswick River Snipes | Georgia State League | , | ||
| Goodwin | 1906 | 5/26 | Williamsport Millionaires | Tri-State League | , | ||
| Goodwin | 1906 | 6/18 | Sumter Game Cocks | South Carolina League | , | ||
| Art Goodwin | goodwi001art | 1906 | 4/12-4/25 | Memphis Egyptians | Southern Association | , | |
| Art Goodwin | goodwi001art | 1906 | 5/14-5/25 | Montgomery Senators | Southern Association | , | |
| Art Goodwin | goodwi001art | 1906 | 6/25-7/28 | Mobile Sea Gulls | Cotton States League | , | |
| Clyde Goodwin | goodwi001cly | 1906 | 4/19-4/25 | Milwaukee Brewers | American Association | , | |
| Clyde Goodwin | goodwi001cly | 1906 | 6/16-9/14 | Milwaukee Brewers | American Association | , | |
| Clyde Goodwin | goodwi001cly | 1906 | 4 g. | Washington | American League | Washington, DC | |
| Fred Goodwin | 1906 | Rockville CT | Independent | , | |||
| Harry Goodwin | goodwi002har | 1906 | 6/13-9/1 | Grays Harbor Lumbermen | Northwestern League | , | |
| Brooks Gordon | gordon001bro | 1906 | 112 g. | Austin Senators | South Texas League | , | |
| Gore | 1906 | +8/4+ | Barberton OH | Independent | , | ||
| Gore | 1906 | +8/25+ | Akron OH | Independent | , | ||
| Gore | 1906 | 9/9 | Evansville River Rats | Central League | , | ||
| Miles Gore | 1906 | Springfield Senators | Illinois-Indiana-Iowa League | , | |||
| James Gorman | 1906 | 4/27-4/30 | Lawrence Colts | New England League | , | ||
| Gormully | 1906 | 20 g. | Green Bay Colts | Wisconsin State League | , | ||
| Ly Gorton | gorton001lym | 1906 | 4/28-9/5 | Worcester Busters | New England League | , | |
| Irwin Gough | 1906 | +9/2-9/9+ | Jackson Convicts | Southern Michigan League | , | ||
| Mike Grady | grady-002mic | 1906 | 97 g. | St. Louis | National League | St. Louis, MO | |
| William Graffius | graffi001wil | 1906 | 4/12-9/15 | Shreveport Pirates | Southern Association | , | |
| Vincent Gragion | gragio000vin | 1906 | +8/21+ | Geneva | Empire State League | , | |
| Graham | 1906 | 5/17-6/7 | Tecumseh | Southern Michigan League | , | ||
| Angus Graham | 1906 | 7/26 | Lowell Tigers | New England League | , | ||
| Charlie Graham | graham002cha | 1906 | Sacramento Cordovas | California League | , | ||
| Charlie Graham | graham002cha | 1906 | 4/14-5/29 | Boston | American League | Boston, MA | |
| Earl Graham | graham001ear | 1906 | 5/3-9/16 | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Moonlight Graham | graham001arc | 1906 | 4/12-4/27 | Memphis Egyptians | Southern Association | , | |
| Moonlight Graham | graham001arc | 1906 | 5/10-9/22 | Scranton Miners | New York State League | , | |
| Oscar Graham | graham001osc | 1906 | 68 g. | Oakland Oaks | Pacific Coast League | , | |
| Peaches Graham | graham002geo | 1906 | 4/18-9/16 | Minneapolis Millers | American Association | , | |
| Bill Grahame | graham003wil | 1906 | 4/29-5/2 | Grand Rapids Wolverines | Central League | , | |
| Bill Grahame | graham003wil | 1906 | +5/11-7/3 | Erie Sailors | Interstate League | , | |
| Bill Grahame | graham003wil | 1906 | +8/8+ | Flint MI | Independent | , | |
| Bill Grahame | graham003wil | 1906 | 8/28-9/25 | Grand Rapids Wolverines | Central League | , | |
| Jack Graney | graney002joh | 1906 | 5/29- | Fulton | Empire State League | , | |
| Grant | 1906 | +7/14-7/29+ | Detr.-Burroughs | Independent | , | ||
| Angus Grant | grant-001ang | 1906 | 4/26-9/25 | South Bend Greens | Central League | , | |
| Eddie Grant | grant-001edw | 1906 | Lynn MA | Independent | , | ||
| Eddie Grant | grant-001edw | 1906 | 6/23-9/23 | Jersey City Skeeters | Eastern League | , | |
| Lester Grant | 1906 | Lynn MA | Independent | , | |||
| Arthur Granville | granvi001art | 1906 | 4/16-9/3 | Columbia Gamecocks | South Atlantic League | , | |
| Frank Graves | graves002fra | 1906 | Oshkosh Indians | Wisconsin State League | , | ||
| George Graves | graves001geo | 1906 | 5/4-7/21 | Topeka White Sox | Western Association | , | |
| George Graves | graves001geo | 1906 | 7/28-9/20 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Charles Gray | 1906 | Portl-Schillers | Independent | , | |||
| Dolly Gray | gray--003wil | 1906 | rel. 5/17 | 10 g. | Los Angeles Angels | Pacific Coast League | , |
| Dolly Gray | gray--003wil | 1906 | 6/11-8/3 | Johnstown Johnnies | Tri-State League | , | |
| Dolly Gray | gray--003wil | 1906 | 8/22-9/1 | York Penn Parks | Tri-State League | , | |
| Dolly Gray | gray--003wil | 1906 | 9/5-9/15 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | |
| Leonard Gray | gray--001leo | 1906 | 75 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Leonard Gray | gray--001leo | 1906 | by 6/17 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Leonard Gray | gray--001leo | 1906 | +7/5-9/3 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Wilder Gray | 1906 | Ottawa Univ. | College | , | |||
| Wilder Gray | 1906 | 5/4-6/14 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Wilder Gray | 1906 | 6/15-9/9 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Grazier | 1906 | 8/8 | Des Moines Champs | Western League | , | ||
| Greek | 1906 | 8/24 | Houston Buffaloes | South Texas League | , | ||
| Green | 1906 | 5/15-5/17+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Danny Green | green-001edw | 1906 | 4/19-9/16 | Milwaukee Brewers | American Association | , | |
| Earl Green | green-001ear | 1906 | Joplin Miners | Western Association | , | ||
| Earl Green | green-001ear | 1906 | 4/9- | Atchison KS | Independent | , | |
| Frank Green | green-002fra | 1906 | 74 g. | Burlington Pathfinders | Iowa League | , | |
| Harry Green | 1906 | Southern New Jersey | , | ||||
| Johnny Green | green-001joh | 1906 | 5/4-7/25 | Wichita Jobbers | Western Association | , | |
| Johnny Green | green-001joh | 1906 | 7/28-9/23 | Oklahoma City Mets | Western Association | , | |
| Roy Green | 1906 | Saginaw HS | High School | , | |||
| Ernest Greene | greene001ern | 1906 | 6/13-9/21 | Buffalo Bisons | Eastern League | , | |
| Paddy Greene | greene001pat | 1906 | 4/28-5/10 | New Bedford Whalers | New England League | , | |
| Teddy Greene | greene001ted | 1906 | Marshalltown Brownies | Iowa League | , | ||
| Ernest Greenwell | 1906 | Lambertville NJ | Independent | , | |||
| Ernest Greenwell | 1906 | +6/+ | DuBois Miners | Interstate League | , | ||
| Ernest Greenwell | 1906 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |||
| Ernest Greenwell | 1906 | +8/19+ | Clayton | Southern New Jersey | , | ||
| Edwin Greer | 1906 | 6/13 | Independence Coyotes | Kansas State League | , | ||
| Gregory | 1906 | +7/13-7/14+ | South McAlester Miners | South Central League | , | ||
| Gregory | 1906 | 7/23-8/7 | Umpire | South Central League | , | ||
| Joseph Gremillion | 1906 | 20 g. | Lake Charles Creoles | South Texas League | , | ||
| Ed Gremminger | gremmi001lor | 1906 | 4/18-9/17 | Minneapolis Millers | American Association | , | |
| Ed Gremminger | gremmi001lor | 1906 | Kane Mountaineers | Interstate League | , | ||
| Grenke | 1906 | 37 g. | Wausau Lumberjacks | Wisconsin State League | , | ||
| Louis Griebner | 1906 | +5/26+ | Duluth White Sox | Northern-Copper Country League | , | ||
| Griffin | 1906 | 6/23-7/7 | Albany | Georgia State League | , | ||
| Cal Griffin | 1906 | 8/29 | Fall River Indians | New England League | , | ||
| H. Griffin | 1906 | +5/12-5/30+ | Waycross Machinists | Georgia State League | , | ||
| Jack Griffin | 1906 | 5/10 | Bartlesville Indians | Kansas State League | , | ||
| Jack Griffin | 1906 | +5/29-6/14 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Jack Griffin | 1906 | 6/15-9/9 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| James Griffin | 1906 | 6/8-6/18 | Evansville River Rats | Central League | , | ||
| Sandy Griffin | griffi001san | 1906 | 5/10-9/23 | Syracuse Stars | New York State League | , | |
| Steve Griffin | griffi001ste | 1906 | 5/15-6/11+ | Mount Clemens Bathers | Southern Michigan League | , | |
| T. Griffin | 1906 | +5/28-5/30+ | Waycross Machinists | Georgia State League | , | ||
| T. Griffin | 1906 | 7/16-8/18 | Georgetown | South Carolina League | , | ||
| Griffith | 1906 | 7/5 | Lancaster Red Roses | Tri-State League | , | ||
| Henry Griffith | griffi004fra | 1906 | Hornell/Patton Pigmies | Interstate League | , | ||
| Art Griggs | griggs001art | 1906 | 4/21-5/5 | Little Rock Travelers | Southern Association | , | |
| Art Griggs | griggs001art | 1906 | 15 g. | Lake Charles Creoles | South Texas League | , | |
| Bruce Grigsby | 1906 | Chanute-Elks | Independent | , | |||
| Bruce Grigsby | 1906 | 5/8, +8/26+ | Chanute Browns | Kansas State League | , | ||
| Jack Grim | grim--001joh | 1906 | 9/7 | Lynchburg Shoemakers | Virginia League | , | |
| John Grim | grim--002joh | 1906 | Indianapolis | Semi-professional | , | ||
| Paul Grimes | grimes001pau | 1906 | 5/19-9/3 | Calumet Aristocrats | Northern-Copper Country League | , | |
| Ralph Grimes | 1906 | Indianapolis Indians | American Association | , | |||
| Myron Grimshaw | grimsh001myr | 1906 | 110 g. | Boston | American League | Boston, MA | |
| Grindle | grindl001--- | 1906 | +5/16+ | Parsons Preachers | Kansas State League | , | |
| Grindle | grindl001--- | 1906 | 5/25 | Bartlesville Indians | Kansas State League | , | |
| Grindle | grindl001--- | 1906 | +5/30-6/16+ | Fort Scott Giants | Kansas State League | , | |
| Grindle | 1906 | +7/27+ | Seneca KS | Independent | , | ||
| E. M.? Grindle | 1906 | Springfield Babes | Central League | , | |||
| William Groeschow | groesc001wil | 1906 | 4/26-9/25 | Grand Rapids Wolverines | Central League | , | |
| Grogan | 1906 | +6/29-8/19+ | Fargo | Northern-Copper Country League | , | ||
| John Grogan | grogan004joh | 1906 | 71 g. | Fargo | Northern-Copper Country League | , | |
| John Grogan | 1906 | 5/15-5/21+ | Jackson Convicts | Southern Michigan League | , | ||
| John Grogan | 1906 | +6/5-8/24+. | Dayton Veterans | Central League | , | ||
| C. Groh | 1906 | +9/9+ | Roch.-MapleLeafs | Independent | , | ||
| Lewis Groh | groh--001lew | 1906 | 23 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| Lewis Groh | groh--001lew | 1906 | 39 g. | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Lewis Groh | groh--001lew | 1906 | 5/20-6/15 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| Lewis Groh | groh--001lew | 1906 | +9/9+ | Roch.-MapleLeafs | Independent | , | |
| James Gronninger | gronin001jam | 1906 | 6/29-9/12 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| Leo Groom | groom-001leo | 1906 | 4/27-7/19 | Haverhill Hustlers | New England League | , | |
| Robert Groom | groom-001rob | 1906 | 5/6-9/20 | Springfield Midgets | Western Association | , | |
| Gross | 1906 | 6/29, 7/16 | Springfield Midgets | Western Association | , | ||
| Ernie Groth | groth-001ern | 1906 | 4/21-9/15 | Columbus Senators | American Association | , | |
| Dudley Grow | 1906 | Freeport Pretzels | Wisconsin State League | , | |||
| Grubb | 1906 | 5/9-5/27 | Tulsa Oilers | South Central League | , | ||
| Herbert Grubb | grubb-001her | 1906 | 4/25-5/5 | Altoona Mountaineers | Tri-State League | , | |
| Herbert Grubb | grubb-001her | 1906 | 5/8-6/6 | Baltimore Orioles | Eastern League | , | |
| Herbert Grubb | grubb-001her | 1906 | 6/20-7/7 | Toronto Maple Leafs | Eastern League | , | |
| Herbert Grubb | grubb-001her | 1906 | 7/11-9/8 | Rochester Bronchos | Eastern League | , | |
| Frank Grubbs | grubbs002fra | 1906 | Shreveport Pirates | Southern Association | , | ||
| Frank Grubbs | grubbs002fra | 1906 | 5/21-5/28 | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Frank Grubbs | grubbs002fra | 1906 | 6/23-7/4 | Danville Red Sox | Virginia League | , | |
| Louis Gruebner | gruebn001lou | 1906 | 5/19-6/2 | Duluth White Sox | Northern-Copper Country League | , | |
| Louis Gruebner | gruebn001lou | 1906 | 6/3-8/31 | Lake Linden Sandy Cities | Northern-Copper Country League | , | |
| Stuart Guerney | 1906 | 18 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Stuart Guerney | 1906 | South Bend Greens | Central League | , | |||
| Stuart Guerney | 1906 | Anderson | Interstate Association | , | |||
| Stuart Guerney | 1906 | 18 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Louis Guernsey | guerns001lou | 1906 | +7/4+ | Anderson | Interstate Association | , | |
| Raymond Guernsey | 1906 | Wesleyan Univ | College | , | |||
| Whitey Guese | guese-001the | 1906 | 4/15-9/10 | New Orleans Pelicans | Southern Association | , | |
| Jasper Guhl | 1906 | Laporte IN | Independent | , | |||
| Thomas Guiheen | guihee001tho | 1906 | 4/27-9/8 | Fall River Indians | New England League | , | |
| Frank Gum | gum---002fra | 1906 | Colo. St. Univ. | College | , | ||
| Frank Gum | gum---002fra | 1906 | 6/12- | Pueblo Indians | Western League | , | |
| Frank Gum | gum---002fra | 1906 | 6/24-10/9+ | Portland Beavers | Pacific Coast League | , | |
| Olin Gunnett | 1906 | 7/9-7/11 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Cecil Gunter | gunter001c-- | 1906 | 6/2-6/5 | Roanoke Tigers | Virginia League | , | |
| Cecil Gunter | gunter001c-- | 1906 | 6/11-8/18 | Camden | South Carolina League | , | |
| Wilfred Gutierrez | guitte001wil | 1906 | 4/19-8/14 | Baton Rouge Cajuns | Cotton States League | , | |
| Wilfred Gutierrez | guitte001wil | 1906 | 8/23-9/15 | Montgomery Senators | Southern Association | , | |
| Isaac Guyn | guyn--001how | 1906 | +7/20+ | Mt. Sterling KY | Independent | , | |
| Charles Guyon | 1906 | 5/24-8/17 | Washington | Pennsylvania-Ohio-Maryland League | , | ||
| George Gwinn | 1906 | 120 g. | Freeport Pretzels | Wisconsin State League | , | ||
| Frank Gygli | gygli-001fra | 1906 | 137 g. | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Bert Haas | haas--003ber | 1906 | 5/3-5/16 | Chanute Browns | Kansas State League | , | |
| Bert Haas | haas--003ber | 1906 | 7/14-9/9 | Independence Coyotes | Kansas State League | , | |
| Bert Haas | haas--001ber | 1906 | 130 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| Hackett | 1906 | Umpire | Kentucky-Illinois-Tennessee League | , | |||
| Jim Hackett | hacket001jam | 1906 | 42 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | |
| Jim Hackett | hacket001jam | 1906 | 7/11-7/12 | Kansas City Blues | American Association | , | |
| Jim Hackett | hacket001jam | 1906 | Oakland Oaks | Pacific Coast League | , | ||
| Tom Hackett | hacket001tho | 1906 | 26 g. | Oakland Oaks | Pacific Coast League | , | |
| James Hackney | 1906 | 6/17-7/15 | Dallas Giants | Texas League | , | ||
| Frederick Hadley | hadley001--- | 1906 | 6/11-6/23 | Danville Red Sox | Virginia League | , | |
| Hubert Hadley | hadley001hub | 1906 | 118 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | |
| George Hafer | 1906 | Dillon MT | Independent | , | |||
| Frank Hafford | haffor001fra | 1906 | 5/11-9/23 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Leo Hafford | haffor001leo | 1906 | 4/15-4/24 | Cincinnati | National League | Cincinnati, OH | |
| Leo Hafford | haffor001leo | 1906 | 5/17-5/23 | Rochester Bronchos | Eastern League | , | |
| Leo Hafford | haffor001leo | 1906 | +6/19+ | Beverly MA | Independent | , | |
| Leo Hafford | haffor001leo | 1906 | +6/21+ | Ottawa Can | Independent | , | |
| Leo Hafford | haffor001leo | 1906 | 6/25-9/15 | Indianapolis Indians | American Association | , | |
| Raymond Hagan | hagan-001ray | 1906 | -9/29 | 121 g. | New Castle Outlaws | Ohio-Pennsylvania League | , |
| John Hagel | 1906 | 117 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| Kurt Hageman | 1906 | Geneva College | College | , | |||
| Kurt Hageman | 1906 | Beaver Falls PA | Independent | , | |||
| Kurt Hageman | 1906 | Rochester PA | Independent | , | |||
| Kurt Hageman | 1906 | 7/18-9/15 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Alf Hagerman | hagerm001alf | 1906 | no g. | Grand Rapids Wolverines | Central League | , | |
| John Hagle | hagle-000joh | 1906 | 4/27-5/11 | Vicksburg Hill Billies | Cotton States League | , | |
| Ed Hahn | hahn--003wil | 1906 | New York | American League | New York, NY | ||
| Ed Hahn | hahn--003wil | 1906 | Chicago | American League | Chicago, IL | ||
| Noodles Hahn | hahn--001fra | 1906 | New York | American League | New York, NY | ||
| Phil Hahn | hahn--002phi | 1906 | 4/26-6/4 | Danville Red Sox | Virginia League | , | |
| Louis Haidt | haidt-001lou | 1906 | 4/24-7/22 | Memphis Egyptians | Southern Association | , | |
| Louis Haidt | haidt-001lou | 1906 | 68 g. | San Antonio Bronchos | South Texas League | , | |
| Louis Haidt | haidt-001lou | 1906 | Galveston Sand Crabs | South Texas League | , | ||
| Haight | 1906 | 5/22-5/24+ | Jackson Convicts | Southern Michigan League | , | ||
| Victor Haisman | haisma001vic | 1906 | 4/27-5/19+ | Springfield Babes | Central League | , | |
| Victor Haisman | haisma001vic | 1906 | +6/16-6/17+ | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Victor Haisman | haisma001vic | 1906 | Chic.-Spalding | Chicago City League | , | ||
| Victor Haisman | haisma001vic | 1906 | 6/28-9/9 | Coffeyville Bricks | Kansas State League | , | |
| Halderman | 1906 | Missouri Valley League | , | ||||
| Halderman | 1906 | 7/1-7/6 | Butte Miners | Northwestern League | , | ||
| Hale | 1906 | +7/18+ | Dowagiac MI | Independent | , | ||
| Hale | 1906 | Dayton Veterans | Central League | , | |||
| Glenn Hale | hale--001gle | 1906 | 5/3-7/3 | Erie Sailors | Interstate League | , | |
| Glenn Hale | hale--001gle | 1906 | +7/22-9/23 | Battle Creek Crickets | Southern Michigan League | , | |
| Jack Hale | 1906 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |||
| Ray Hale | hale--001ray | 1906 | 4/13-6/26 | Montgomery Senators | Southern Association | , | |
| Ray Hale | hale--001ray | 1906 | 7/23-9/24 | Dayton Veterans | Central League | , | |
| George Haley | 1906 | 131 g. | Oakland Oaks | Pacific Coast League | , | ||
| Robert Haley | 1906 | +8/22-9/23 | Jackson Convicts | Southern Michigan League | , | ||
| Hall | 1906 | 5/9 | Cordele | Georgia State League | , | ||
| Hall | 1906 | 1 g. | Portsmouth Truckers | Virginia League | , | ||
| Bob Hall | hall--004rob | 1906 | 4/26-9/22 | Baltimore Orioles | Eastern League | , | |
| Charley Hall | hall--004cha | 1906 | 39 g. | Seattle Siwashes | Pacific Coast League | , | |
| Charley Hall | hall--004cha | 1906 | 7/12- | 17 g. | Cincinnati | National League | Cincinnati, OH |
| Clyde Hall | 1906 | 7/6-9/16 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | ||
| Louis Hall | hall--001lou | 1906 | 56 g. | Jackson Senators | Cotton States League | , | |
| Louis Hall | hall--001lou | 1906 | 9/6-10/1 | Sioux City Packers | Western League | , | |
| Russ Hall | hall--011rob | 1906 | 71 g. | Seattle Siwashes | Pacific Coast League | , | |
| Rusty Hall | hall--001war | 1906 | Los Angeles Angels | Pacific Coast League | , | ||
| Rusty Hall | hall--001war | 1906 | Fresno Raisin Eaters | Pacific Coast League | , | ||
| John Halla | halla-001joh | 1906 | 4/25-5/3 | Indianapolis Indians | American Association | , | |
| John Halla | halla-001joh | 1906 | 5/16-5/19 | Grand Rapids Wolverines | Central League | , | |
| John Halla | halla-001joh | 1906 | 5/29 | Dayton Veterans | Central League | , | |
| John Halla | halla-001joh | 1906 | 6/16-7/11 | Sharon Steels | Ohio-Pennsylvania League | , | |
| John Halla | halla-001joh | 1906 | 7/21-9/19 | Topeka White Sox | Western Association | , | |
| Edward Halligan | hallig001edw | 1906 | 4/27-9/7 | Norwich Reds | Connecticut State League | , | |
| Jocko Halligan | hallig001joc | 1906 | 4/26-9/23 | Jersey City Skeeters | Eastern League | , | |
| Bill Hallman | hallma002wil | 1906 | 4/16-5/22 | Savannah Indians | South Atlantic League | , | |
| Bill Hallman | hallma002wil | 1906 | 5/31-7/12 | Albany Senators | New York State League | , | |
| Bill Hallman | hallma001wil | 1906 | 4/18-9/15 | Louisville Colonels | American Association | , | |
| Bill Hallman | hallma001wil | 1906 | 23 g. | Pittsburgh | National League | Pittsburgh, PA | |
| Charles? Hallman | 1906 | +5/23+ | 9 g. | South Bend Greens | Central League | , | |
| Charles? Hallman | 1906 | +7/2-7/? | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Halpin | 1906 | 5/30-6/4 | Bridgeport Orators | Connecticut State League | , | ||
| Lamar Ham | ham---002lam | 1906 | +5/25-7/7 | Waycross Machinists | Georgia State League | , | |
| Lamar Ham | ham---002lam | 1906 | 7/17-7/18 | Sumter Game Cocks | South Carolina League | , | |
| Lamar Ham | ham---002lam | 1906 | 7/30-8/4 | Augusta Tourists | South Atlantic League | , | |
| Hamburg | 1906 | +5/16-6/18+ | Cordele | Georgia State League | , | ||
| Francis Hamer | hamer-000fra | 1906 | Donald team | Independent | , | ||
| J. Hamer | 1906 | 6/11-6/23 | Georgetown | South Carolina League | , | ||
| Hamilton | 1906 | 5/23 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| Billy Hamilton | hamilt006wil | 1906 | 4/27-6/22 | Harrisburg Senators | Tri-State League | , | |
| Billy Hamilton | hamilt006wil | 1906 | 7/23-9/8 | Haverhill Hustlers | New England League | , | |
| James Hamilton | 1906 | 4/26-6/20 | Richmond Colts | Virginia League | , | ||
| James Hamilton | 1906 | 6/27-7/16 | Lynchburg Shoemakers | Virginia League | , | ||
| James Hamilton | 1906 | 7/21-9/8 | Portsmouth Truckers | Virginia League | , | ||
| Lee Hamilton | 1906 | 5/22-6/5 | Americus Pallbearers | Georgia State League | , | ||
| Fritz Hamlin | 1906 | McPherson KS | Independent | , | |||
| Walter Hammersley | 1906 | Glens Falls-Saratoga Springs | Hudson River League | , | |||
| Hammond | 1906 | Alameda Grays | California League | , | |||
| Harry Hammond | hammon001har | 1906 | 4/28-9/24 | Springfield Babes | Central League | , | |
| Leon Hammond | 1906 | College | , | ||||
| Leon Hammond | 1906 | 5/7 | Holyoke Paperweights | Connecticut State League | , | ||
| Leon Hammond | 1906 | +5/16-5/23+ | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Leon Hammond | 1906 | Pawtucket RI | Independent | , | |||
| Leon Hammond | 1906 | 7/6-7/12 | Springfield Ponies | Connecticut State League | , | ||
| Harry Hanby | 1906 | Ches.-Seaboards | Independent | , | |||
| Mike Handiboe | handib001alo | 1906 | 4/26-5/15 | Norfolk Tars | Virginia League | , | |
| Mike Handiboe | handib001alo | 1906 | +7/12-7/20+ | WashDC-Atlantics | Independent | , | |
| William Handiboe | handib002wil | 1906 | +7/12-7/20+ | WashDC-Atlantics | Independent | , | |
| Jim Haney | haney-003jam | 1906 | 5/5-7/18 | Shawnee Blues | South Central League | , | |
| Charles Hanford | 1906 | 4/29-9/23 | Jersey City Skeeters | Eastern League | , | ||
| Chip Hanford | hanfor002cha | 1906 | 56 g. | Oshkosh Indians | Wisconsin State League | , | |
| Chip Hanford | hanfor002cha | 1906 | Freeport Pretzels | Wisconsin State League | , | ||
| Jack Hankey | hankey001joh | 1906 | 105 g. | Mobile Sea Gulls | Cotton States League | , | |
| Jack Hankey | hankey001joh | 1906 | Baton Rouge Cajuns | Cotton States League | , | ||
| George Hanley | hanley002geo | 1906 | 5/10-9/22 | Wilkes-Barre Barons | New York State League | , | |
| F. B. Hanlon | hanlon001f-- | 1906 | 5/1-8/2 | Tulsa Oilers | South Central League | , | |
| F. B. Hanlon | hanlon001f-- | 1906 | 31 g. | Coffeyville Bricks | Kansas State League | , | |
| Hanman | hanman001--- | 1906 | Newburg | Independent | , | ||
| Hanna | 1906 | 7/14 | San Antonio Bronchos | South Texas League | , | ||
| Larry Hannafin | hannaf001law | 1906 | 5/14-9/22 | Scranton Miners | New York State League | , | |
| John Hannah | 1906 | 6/1-9/16 | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| Jack Hannifin | hannif002joh | 1906 | 4/19 | Philadelphia | American League | Philadelphia, PA | |
| Jack Hannifin | hannif002joh | 1906 | 4/26-4/30 | Baltimore Orioles | Eastern League | , | |
| Jack Hannifin | hannif002joh | 1906 | 5/14-9/8 | New Haven Blues | Connecticut State League | , | |
| Jack Hannifin | hannif002joh | 1906 | 10 g. | New York | National League | New York, NY | |
| George Hannigan | 1906 | Bloomington IL | Amateur | , | |||
| George Hannigan | 1906 | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | |||
| Pat Hannivan | hanniv001pat | 1906 | 5/11-9/2 | Binghamton Bingoes | New York State League | , | |
| Billy Hanrahan | hanrah001wil | 1906 | 5/19-7/8 | Winnipeg Maroons | Northern-Copper Country League | , | |
| Billy Hanrahan | hanrah001wil | 1906 | 7/9-7/28 | Grand Forks Forkers | Northern-Copper Country League | , | |
| Billy Hanrahan | hanrah001wil | 1906 | 7/30-9/3 | Fargo | Northern-Copper Country League | , | |
| Peter Hansen | hansen001pet | 1906 | +5/28-8/26+ | Fargo | Northern-Copper Country League | , | |
| Hansen/Hanson | 1906 | Illinois-Indiana-Iowa League | , | ||||
| George Hanson | hanson001geo | 1906 | 44 g. | Seattle Siwashes | Pacific Coast League | , | |
| Oren Hanson | hanson001ore | 1906 | +5/18+ | Burlington Pathfinders | Iowa League | , | |
| George Harbusch | 1906 | 20 g. | Bridgeport Orators | Connecticut State League | , | ||
| Scott Hardesty | hardes002sco | 1906 | 5/11-5/16 | Umpire | Ohio-Pennsylvania League | , | |
| Scott Hardesty | hardes002sco | 1906 | Umpire | Tri-State League | , | ||
| Alex Hardy | hardy-001dav | 1906 | 5/12-9/23 | Troy Trojans | New York State League | , | |
| Ellis Hardy | hardy-001ell | 1906 | 95 g. | Lake Charles Creoles | South Texas League | , | |
| Harry Hardy | hardy-001har | 1906 | 5/14-8/26 | Providence Grays | Eastern League | , | |
| Harry Hardy | hardy-001har | 1906 | -9/26 | 5 g. | Washington | American League | Washington, DC |
| Jack Hardy | hardy-001joh | 1906 | Fort Wayne | Interstate Association | , | ||
| Jack Hardy | hardy-001joh | 1906 | 56 g. | Sharon Steels | Ohio-Pennsylvania League | , | |
| Harker | 1906 | Parsons Preachers | Kansas State League | , | |||
| Neil Harkins | 1906 | 4/26-6/13 | Umpire | Connecticut State League | , | ||
| William Harkins | 1906 | DuBois Miners | Interstate League | , | |||
| William Harkins | 1906 | 5/25-7/7 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| William Harkins | 1906 | -9/29 | 42 g. | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| Roy Harland | harlan001cud | 1906 | 5/4- | 25 g. | Parsons Preachers | Kansas State League | , |
| Roy Harland | harlan001cud | 1906 | 8/26 | Leavenworth Old Soldiers | Western Association | , | |
| Dick Harley | harley001ric | 1906 | 4/26-9/22 | Providence Grays | Eastern League | , | |
| Dick Harley | harley001hen | 1906 | 4/12-9/13 | Atlanta Crackers | Southern Association | , | |
| Con Harlow | harlow001con | 1906 | 53 g. | Houston Buffaloes | South Texas League | , | |
| George Harm | 1906 | 9/5-9/13 | Lincoln Ducklings | Western League | , | ||
| Ira Harmon | harmon001ira | 1906 | 5/5-6/7 | Lincoln Ducklings | Western League | , | |
| Walter Harmon | harmon001wal | 1906 | 365 ab | Hudson Marines | Hudson River League | , | |
| William Harms | 1906 | +5/18-6/10+ | Saginaw | Interstate Association | , | ||
| William Harms | 1906 | 7/18-9/23 | Saginaw | Southern Michigan League | , | ||
| William Harmuth | harmut001wil | 1906 | 8/8-8/11 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Nick Harnish | harnis001nic | 1906 | 4/16-9/3 | Macon Brigands | South Atlantic League | , | |
| Nick Harnish | harnis001nic | 1906 | 9/18 | Dayton Veterans | Central League | , | |
| J. Harper | 1906 | +5/19+ | Cordele | Georgia State League | , | ||
| Jack Harper | harper003cha | 1906 | 5 g. | Cincinnati | National League | Cincinnati, OH | |
| Jack Harper | harper003cha | 1906 | 6/6 | Chicago | National League | Chicago, IL | |
| Jesse Harper | harper001jes | 1906 | 22 g. | Seattle Siwashes | Pacific Coast League | , | |
| Daniel Harrell | 1906 | Bradford Drillers | Interstate League | , | |||
| Harrigan | 1906 | 7/24-7/25 | Lowell Tigers | New England League | , | ||
| Bernard Harrigan | 1906 | 5/3-5/17+ | Coffeyville Bricks | Kansas State League | , | ||
| Guy Harrington | harrin001guy | 1906 | 5/4-9/23 | Leavenworth Old Soldiers | Western Association | , | |
| William Harrington | 1906 | 5/5-5/9+ | Americus Pallbearers | Georgia State League | , | ||
| Ewing Harris | harris001ewi | 1906 | 30 g. | Beaumont Oilers | South Texas League | , | |
| Joe Harris | harris007jos | 1906 | 30 g. | Boston | American League | Boston, MA | |
| Joe/Wm.? Harris | 1906 | 5/19-7/28 | Grand Forks Forkers | Northern-Copper Country League | , | ||
| John Harris | harris001joh | 1906 | Abilene TX | Independent | , | ||
| John Harris | harris001joh | 1906 | Gainesville TX | Independent | , | ||
| John Harris | 1906 | 109 g. | Marshalltown Brownies | Iowa League | , | ||
| Joseph Harris | harris002jos | 1906 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | ||
| William Harris | 1906 | 5/15-6/24 | Jackson Convicts | Southern Michigan League | , | ||
| William Harris | 1906 | 6/25-6/28+ | Battle Creek Crickets | Southern Michigan League | , | ||
| William Harris | 1906 | +7/19-9/23 | Jackson Convicts | Southern Michigan League | , | ||
| Leo Harrison | harris005leo | 1906 | 370 ab | Paterson Intruders | Hudson River League | , | |
| Harry Harrod | harrod001har | 1906 | 116 g. | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Hart | 1906 | 18 g. | Calumet Aristocrats | Northern-Copper Country League | , | ||
| Hart | 1906 | Fargo | Northern-Copper Country League | , | |||
| Hart | 1906 | 24 g. | Green Bay Colts | Wisconsin State League | , | ||
| Hart | 1906 | Cordele | Georgia State League | , | |||
| Bill Hart | hart--004wil | 1906 | 5/1-6/15 | Indianapolis Indians | American Association | , | |
| Danny Hart | 1906 | 5/24-6/8 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Danny Hart | 1906 | 9/13-9/15 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| G. Hart | 1906 | +6/22-7/29 | Grand Forks Forkers | Northern-Copper Country League | , | ||
| G. Hart | 1906 | 7/30+ | Fargo | Northern-Copper Country League | , | ||
| Hub Hart | hart--004jam | 1906 | +6/9-7/11+ | Chicago | American League | Chicago, IL | |
| Jimmy Hart | hart--003jam | 1906 | 4/18-9/17 | Minneapolis Millers | American Association | , | |
| Chick Hartley | hartle001wal | 1906 | 4/25-9/15 | Lancaster Red Roses | Tri-State League | , | |
| Charles Hartman | hartma001cha | 1906 | 39 g. | Austin Senators | South Texas League | , | |
| Charlie Hartman | hartma002cha | 1906 | 1 g. | Fresno Raisin Eaters | Pacific Coast League | , | |
| Charlie Hartman | hartma002cha | 1906 | 1 g. | Seattle Siwashes | Pacific Coast League | , | |
| Charlie Hartman | hartma002cha | 1906 | L.A.-Hamburgers | Semi-professional | , | ||
| Francis Hartman | 1906 | Read-St. PetersS | Independent | , | |||
| Fred Hartman | hartma003fre | 1906 | 4/25-6/5 | Harrisburg Senators | Tri-State League | , | |
| Fred Hartman | hartma003fre | 1906 | 6/22-6/30 | Holyoke Paperweights | Connecticut State League | , | |
| Fred Hartman | hartma003fre | 1906 | 7/31-9/14 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Louis Hartman | hartma003fre | 1906 | 4/29-9/22 | Montreal Royals | Eastern League | , | |
| Sam Hartman | hartma001sam | 1906 | 5/2-9/7 | Worcester Busters | New England League | , | |
| William Hartman | hartma001wil | 1906 | 4/25-4/26 | Harrisburg Senators | Tri-State League | , | |
| William Hartman | hartma001wil | 1906 | 5/2-5/5 | Lancaster Red Roses | Tri-State League | , | |
| William Hartman | hartma001wil | 1906 | 5/10-9/15 | Altoona Mountaineers | Tri-State League | , | |
| Roy Hartzell | hartze001roy | 1906 | 4/17- | 113 g. | St. Louis | American League | St. Louis, MO |
| Joseph Harville | 1906 | 5/5-6/6 | Chanute Browns | Kansas State League | , | ||
| Joseph Harville | 1906 | 6/15- | Independence Coyotes | Kansas State League | , | ||
| Harwood | 1906 | +8/14+ | Rich.-Hermitage | Independent | , | ||
| M. R. Harwood | 1906 | 5/3-7/7 | Cordele | Georgia State League | , | ||
| Jack Haskell | haskel001jac | 1906 | 4/18-6/29 | Umpire | American Association | , | |
| William Haslem | haslem001wil | 1906 | 4/30-9/1 | Haverhill Hustlers | New England League | , | |
| Christy Hassett | hasset001chr | 1906 | Umpire | Vermont League | , | ||
| Charlie Hastings | hastin002cha | 1906 | 4/27-9/8 | Umpire | New England League | , | |
| Ira Hastings | hastin001ira | 1906 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Ira Hastings | hastin001ira | 1906 | 5/19-9/3 | Houghton Giants | Northern-Copper Country League | , | |
| Ira Hastings | hastin001ira | 1906 | +9/7+ | 7 g. | Green Bay Colts | Wisconsin State League | , |
| Charles Hatch | hatch-001cha | 1906 | 37 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| Harry Hatch | hatch-002har | 1906 | Brown Univ. | College | , | ||
| Harry Hatch | hatch-002har | 1906 | Toronto Maple Leafs | Eastern League | , | ||
| Harry Hatch | hatch-002har | 1906 | +8/8+ | Burlington | Northern Independent League | , | |
| Harry Hatch | hatch-002har | 1906 | Cairo Giants | Kentucky-Illinois-Tennessee League | , | ||
| Harry Hatch | hatch-002har | 1906 | Sioux City Packers | Western League | , | ||
| Bill Hausen | hausen001hom | 1906 | 4/11-9/15 | Montgomery Senators | Southern Association | , | |
| Frank Hauser | hauser001loc | 1906 | Sacramento Cordovas | California League | , | ||
| Sam Havel | havel-001edw | 1906 | 4/26-6/5 | Grand Rapids Wolverines | Central League | , | |
| Sam Havel | havel-001edw | 1906 | -9/29 | 95 g. | Newark Cotton Tops | Ohio-Pennsylvania League | , |
| John Haviland | havila001joh | 1906 | 25 g. | Burlington Pathfinders | Iowa League | , | |
| Hawk | 1906 | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |||
| Hawkins | 1906 | 6/27 | Americus Pallbearers | Georgia State League | , | ||
| Thomas Hawkins | hawkin001tho | 1906 | 4/27-9/25 | Grand Rapids Wolverines | Central League | , | |
| Pink Hawley | hawley001eme | 1906 | 17 g. | La Crosse Pinks | Wisconsin State League | , | |
| Jack Hayden | hayden001joh | 1906 | 4/25-5/26 | York Penn Parks | Tri-State League | , | |
| Jack Hayden | hayden001joh | 1906 | 85 g. | Boston | American League | Boston, MA | |
| Bruce Hayes | hayes-001bru | 1906 | 5/15-8/29+ | Mount Clemens Bathers | Southern Michigan League | , | |
| Claude Hayes | hayes-016--- | 1906 | 5/4-6/14 | Iola Grays/Cherryvale Boosters | Kansas State League | , | |
| Claude Hayes | hayes-016--- | 1906 | +7/18-8/7+ | Iola Grays/Cherryvale Boosters | Kansas State League | , | |
| Gerald Hayes | hayes-001ger | 1906 | 69 g. | Beaumont Oilers | South Texas League | , | |
| Gerald Hayes | hayes-001ger | 1906 | Umpire | South Texas League | , | ||
| Gerald Hayes | hayes-001ger | 1906 | 9/12-9/16 | Umpire | American Association | , | |
| Henry Hayes | 1906 | +8/18+ | Pine Bluff Barristers | Arkansas-Texas League | , | ||
| Jack Hayes | 1906 | Umpire | South Texas League | , | |||
| Thomas Hayes | hayes-002tom | 1906 | U. VT Medical | College | , | ||
| Thomas Hayes | hayes-002tom | 1906 | Univ. Vermont | College | , | ||
| Thomas Hayes | hayes-002tom | 1906 | 6/23-8/25 | Burlington | Northern Independent League | , | |
| Thomas Hayes | hayes-002tom | 1906 | 8/28-9/23 | Albany Senators | New York State League | , | |
| Shorty Haynes | 1906-09 | Kansas State U. | College | , | |||
| William Hayward | haywar001wil | 1906 | 4/26-9/8 | New Haven Blues | Connecticut State League | , | |
| Ben Hayworth | haywor001ben | 1906 | 126 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | |
| John Hazel | hazel-001joh | 1906 | 117 g. | Green Bay Colts | Wisconsin State League | , | |
| Doc Hazelton | hazlet001wil | 1906 | 5/18-6/14 | Johnstown Johnnies | Tri-State League | , | |
| Doc Hazelton | hazlet001wil | 1906 | +7/10-8/23 | Burlington | Northern Independent League | , | |
| Dwight Hazelton | hazelt001dwi | 1906 | Bradford Drillers | Interstate League | , | ||
| Dwight Hazelton | hazelt001dwi | 1906 | +5/13+ | Butler PA | Independent | , | |
| Dwight Hazelton | hazelt001dwi | 1906 | Bradford Drillers | Interstate League | , | ||
| Head | head--003--- | 1906 | 5/5-5/6 | Tacoma Tigers | Northwestern League | , | |
| William Head | 1906 | 81 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Headley | 1906 | +5/26+ | Waynesburg Col. | College | , | ||
| Headley | 1906 | 8/9-8/10 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Hughie Hearne | hearne001hug | 1906 | 4/27-9/22 | Baltimore Orioles | Eastern League | , | |
| T. E. Heater | 1906 | 8/6-9/29 | Sioux City Packers | Western League | , | ||
| George Heckert | hecker001geo | 1906 | 4/25-9/15 | York Penn Parks | Tri-State League | , | |
| Hedauk | 1906 | 7/13+ | South Bend Greens | Central League | , | ||
| Alonzo Hedges | hedges001alo | 1906 | no g. | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Alonzo Hedges | hedges001alo | 1906 | <10 | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | |
| Jimmie Heffernan | heffer001jam | 1906 | Syracuse Univ. | College | , | ||
| Jimmie Heffernan | heffer001jam | 1906 | Elmira NY | Independent | , | ||
| Edward Heffner | heffne001edw | 1906 | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| Crese Heismann | heisma001chr | 1906 | 4/24-5/15 | Savannah Indians | South Atlantic League | , | |
| Crese Heismann | heisma001chr | 1906 | 5/30-9/3 | Columbia Gamecocks | South Atlantic League | , | |
| William Heitmuller | heitmu001wil | 1906 | 178 g./153 g. | Seattle Siwashes | Pacific Coast League | , | |
| William Heitmuller | heitmu001wil | 1906 | Oakland Oaks | Pacific Coast League | , | ||
| John Helding | 1906 | +6/12-9/3 | Duluth White Sox | Northern-Copper Country League | , | ||
| Frederick Heller | heller001fre | 1906 | 134 g. | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Helmick | 1906 | +4/28+ | Barberton OH | Independent | , | ||
| Helmick | 1906 | +5/15+ | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Jack Helmick | 1906 | Barberton OH | Independent | , | |||
| Jack Helmick | 1906 | 5/3-5/15 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Jack Helmick | 1906 | +7/22+ | Huntingburg IN | Independent | , | ||
| Jack Helmick | 1906 | +9/17+ | Boonville IN | Independent | , | ||
| James Helms | helm--001jam | 1906 | 34 g. | Macon Brigands | South Atlantic League | , | |
| George Helmund | helmun001geo | 1906 | 5/10-9/23 | Syracuse Stars | New York State League | , | |
| Charlie Hemphill | hemphi001cha | 1906 | 154 g. | St. Louis | American League | St. Louis, MO | |
| Frank Hemphill | hemphi001fra | 1906 | 4/17- | 13 g. | Chicago | American League | Chicago, IL |
| Frank Hemphill | hemphi001fra | 1906 | 5/12-9/10 | Milwaukee Brewers | American Association | , | |
| William Henchen | 1906 | Havana IL | Independent | , | |||
| Alexander Henderson | 1906 | 9/5-9/8 | Haverhill Hustlers | New England League | , | ||
| Ben Henderson | hender003jam | 1906 | 66 g. | Portland Beavers | Pacific Coast League | , | |
| Jimmy Henderson | 1906 | +8/14+ | Auburn | Empire State League | , | ||
| L. W. Henderson | 1906 | Newark Cotton Tops | Ohio-Pennsylvania League | , | |||
| L. W. Henderson | 1906 | New Salem OH | Independent | , | |||
| Robert Henderson | 1906 | 4/29 | Beaumont Oilers | South Texas League | , | ||
| Robert Henderson | 1906 | 6/19-7/11+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Johnny Hendley | hendle001joh | 1906 | 5/3- | 60 g. | Independence Coyotes | Kansas State League | , |
| Jack Hendricks | hendri002joh | 1906 | 4/27-9/25 | Springfield Babes | Central League | , | |
| Rhoddy Hendrix | 1906 | 5/4-7/19 | Tulsa Oilers | South Central League | , | ||
| Rhoddy Hendrix | 1906 | 7/23-9/21 | Wichita Jobbers | Western Association | , | ||
| Clarence Henley | henley001cla | 1906 | Sacramento Cordovas | California League | , | ||
| Clarence Henley | henley001cla | 1906 | 8/12- | Pueblo Indians | Western League | , | |
| Weldon Henley | henley001wel | 1906 | 5/12-8/30 | Rochester Bronchos | Eastern League | , | |
| Noah Henline | henlin001noa | 1906 | +5/11-5/28 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Noah Henline | henlin001noa | 1906 | +6/11-6/17+ | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Noah Henline | henlin001noa | 1906 | 68 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | |
| Jacob Henn | 1906 | 7/19-7/23 | Danville Red Sox | Virginia League | , | ||
| Joe Hennegar | henneg001jos | 1906 | 4/16-8/17 | Jacksonville Jays | South Atlantic League | , | |
| Joe Hennessey | hennes001jos | 1906 | 5/10-9/22 | Scranton Miners | New York State League | , | |
| Henry Henninger | 1906 | Cinc.-Eagles | Independent | , | |||
| Henriquez | 1906 | Hoboken NJ | Independent | , | |||
| Henry | 1906 | New Castle Outlaws | Ohio-Pennsylvania League | , | |||
| Henry | 1906 | 9/5-9/8 | New Bedford Whalers | New England League | , | ||
| Frank Henry | henry-003fra | 1906 | 4/27- | Worcester Busters | New England League | , | |
| Frank Henry | henry-003fra | 1906 | -9/8 | Lynn Shoemakers | New England League | , | |
| George Henry | henry-002geo | 1906 | 4/27-9/8 | Umpire | New England League | , | |
| Gordon Henry | 1906 | 5/8-5/9+ | Columbus/Brunswick River Snipes | Georgia State League | , | ||
| Jack Henry | henry-001joh | 1906 | 5/21-9/23 | Topeka White Sox | Western Association | , | |
| John Henry | 1906 | 4/26-5/5 | Umpire | Connecticut State League | , | ||
| Hentgee | 1906 | , | |||||
| George Herberling | 1906 | 5/1-5/6 | Tulsa Oilers | South Central League | , | ||
| George Herberling | 1906 | +5/22+ | Fort Scott Giants | Kansas State League | , | ||
| Jack Herbert | herber003joh | 1906 | 5/?-9/4+ | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Andrew Herbst | 1906 | 7/11-9/23 | Montreal Royals | Eastern League | , | ||
| Art Herman | herman001art | 1906 | 4/12-7/12 | Nashville Volunteers | Southern Association | , | |
| Joseph Herold | 1906 | Charleston SC | Independent | , | |||
| Joseph Herold | 1906 | 103 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Eddie Herr | herr--002edw | 1906 | 5/11 | Sharon Steels | Ohio-Pennsylvania League | , | |
| Eddie Herr | herr--002edw | 1906 | 5/29-9/15 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Lefty Herring | herrin001sil | 1906 | 5/24-6/25 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | |
| Frank Hershey | hershe001fra | 1906 | no g. | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Frank Hershey | hershe001fra | 1906 | Penn Yan | Empire State League | , | ||
| John Herwig | herwig001joh | 1906 | 4/28-9/3 | Butte Miners | Northwestern League | , | |
| Oscar Heshley | 1906 | +8/3+ | Enterprise KS | Independent | , | ||
| Hess | hess--001art | 1906 | 4/12-9/15 | Shreveport Pirates | Southern Association | , | |
| Eric Hess | 1906 | Georgetown Univ | College | , | |||
| John Hess | hess--001joh | 1906 | 4/26-9/8 | Springfield Ponies | Connecticut State League | , | |
| Otto Hess | hess--001ott | 1906 | Cleveland | American League | Cleveland, OH | ||
| Tom Hess | hess--001tho | 1906 | 5/2-9/1 | Sioux City Packers | Western League | , | |
| William Hessberger | 1906 | +7/24-9/5+ | Tecumseh | Southern Michigan League | , | ||
| William Hessler | 1906 | U. S. Calvary | Army | , | |||
| William Hessler | 1906 | 5/5-6/28+ | Columbus/Brunswick River Snipes | Georgia State League | , | ||
| William Hessler | 1906 | 7/19-9/8 | Danville Red Sox | Virginia League | , | ||
| Benjamin Hessling | 1906 | 9/12 | Scranton Miners | New York State League | , | ||
| Larry Hesterfer | hester001law | 1906 | 4/29-7/14 | Newark Sailors | Eastern League | , | |
| Gus Hetling | hetlin001aug | 1906 | 5/4-9/23 | Springfield Midgets | Western Association | , | |
| Gus Hetling | hetlin001aug | 1906 | 10/6 | Detroit | American League | Detroit, MI | |
| Ernie Heusser | heusse000ern | 1906 | 5/11 | Topeka White Sox | Western Association | , | |
| Ernie Heusser | heusse000ern | 1906 | 5/15 | Oklahoma City Mets | Western Association | , | |
| Ernie Heusser | heusse000ern | 1906 | 5/30-7/ | Bartlesville Indians | Kansas State League | , | |
| Ernie Heusser | heusse000ern | 1906 | +7/28+ | Salt Lake City UT | Independent | , | |
| Heutges | 1906 | 5/19-5/21+ | Grand Forks Forkers | Northern-Copper Country League | , | ||
| Byron Hewitt | 1906 | Tyler Tx | , | ||||
| Byron Hewitt | 1906 | Texarkana Shine-Oners | Arkansas-Texas League | , | |||
| Mike Heydon | heydon001mic | 1906 | 49 g. | Washington | American League | Washington, DC | |
| William Heyniger | heynig000--- | 1906-08 | +3/30-6/8+ ’07 | Princeton Univ. | College | , | |
| William Heyniger | heynig000--- | 1906 | +8/5+ | Corning NY | Independent | , | |
| Barney Heyward | 1906 | U. South Carolina | College | , | |||
| Barney Heyward | 1906 | 6/11-8/16 | Camden | South Carolina League | , | ||
| Carl Hiatt | 1906 | 4/28-7/30 | Waco Navigators | Texas League | , | ||
| Hickey | 1906 | 6/19 | Albany | Georgia State League | , | ||
| Eddie Hickey | hickey001edw | 1906 | 5/7-8/18 | Little Rock Travelers | Southern Association | , | |
| Jack Hickey | hickey002joh | 1906 | 4/20-6/3 | Milwaukee Brewers | American Association | , | |
| Jack Hickey | hickey002joh | 1906 | 6/28-9/16 | Indianapolis Indians | American Association | , | |
| James Hickey | 1906 | Connecticut State League | , | ||||
| Mattie Hickey | 1906 | 6/19 | Lowell Tigers | New England League | , | ||
| Mike Hickey | hickey001mik | 1906 | 4/26-9/8 | Umpire | Connecticut State League | , | |
| Walter Hickey | hickey001wal | 1906 | 9 g. | Jackson Senators | Cotton States League | , | |
| Walter Hickey | hickey001wal | 1906 | +5/18-9/3 | Waco Navigators | Texas League | , | |
| Charles Hickman | hickma001cha | 1906 | 4/27- | Worcester Busters | New England League | , | |
| Charles Hickman | hickma001cha | 1906 | -9/8 | Manchester Textiles | New England League | , | |
| Charlie Hickman | hickma004cha | 1906 | 120 g. | Washington | American League | Washington, DC | |
| John Hickman | hickma001gor | 1906 | 4/13 | Birmingham Barons | Southern Association | , | |
| John Hickman | hickma001gor | 1906 | 4/30-9/14 | Shreveport Pirates | Southern Association | , | |
| Shorty Hickman | 1906 | 6/15-6/24 | Montgomery Senators | Southern Association | , | ||
| Harvey Hicks | 1906 | 6/22- | Indi.-Reserves | Independent | , | ||
| Rowe Hicks | hicks-001row | 1906 | 119 g. | Richmond Colts | Virginia League | , | |
| Irv Higginbotham | higgin001irv | 1906 | 4/29-8/1 | Tacoma Tigers | Northwestern League | , | |
| Irv Higginbotham | higgin001irv | 1906 | 8/11- | 7 g. | St. Louis | National League | St. Louis, MO |
| Joseph Higgins | higgin001jos | 1906 | 4/27-9/8 | Fall River Indians | New England League | , | |
| William Higgins | 1906 | Brown Univ. | College | , | |||
| William Higgins | 1906 | +7/10-7/25+ | Burlington | Northern Independent League | , | ||
| William Higgins | 1906 | 8/20-9/22 | Providence Grays | Eastern League | , | ||
| Hilbert | 1906 | Knox College | College | , | |||
| Hilbert | 1906 | Duluth White Sox | Northern-Copper Country League | , | |||
| Charles Hilbert | hilber000--- | 1906 | 4/25-5/1 | Lancaster Red Roses | Tri-State League | , | |
| Charles Hilbert | hilber000--- | 1906 | 7/5 | York Penn Parks | Tri-State League | , | |
| Charles Hilbert | hilber000--- | 1906 | 7/30-9/14 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Hildebrand | 1906 | 22 g. | Ottumwa Champs | Iowa League | , | ||
| Irving Hildebrand | 1906 | 7/13-7/18 | Umpire | Virginia League | , | ||
| John Hilding | hildin001joh | 1906 | 75 g. | Duluth White Sox | Northern-Copper Country League | , | |
| Hill | 1906 | 6/11-6/12 | Darlington | South Carolina League | , | ||
| Arthur Hill | 1906 | 8/25-9/30 | Pueblo Indians | Western League | , | ||
| Belden Hill | hill--003bel | 1906 | 5/3-9/16 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Hugh Hill | hill--001hug | 1906 | 4/18-9/16 | Kansas City Blues | American Association | , | |
| Hunter Hill | hill--001hun | 1906 | 4/25-7/7 | Buffalo Bisons | Eastern League | , | |
| Hunter Hill | hill--001hun | 1906 | 9/7-9/12 | Buffalo Bisons | Eastern League | , | |
| Arthur Hillebrand | hilleb001art | 1906 | Washington | American League | Washington, DC | ||
| Arthur Hillebrand | hilleb001art | 1906 | 6/23-8/25 | Ottawa | Northern Independent League | , | |
| Homer Hillebrand | hilleb001hom | 1906 | Pittsburgh | National League | Pittsburgh, PA | ||
| Hiller | hiller008--- | 1906 | 4/27 | Temple Boll Weevils | Texas League | , | |
| Charles Hiller | 1906 | 5/20- | Coffeyville Bricks | Kansas State League | , | ||
| James Hillery | 1906 | 5/23-6/16 | Waco Navigators | Texas League | , | ||
| Ed Hilley | hilley001edw | 1906 | 4/11-4/23 | Montgomery Senators | Southern Association | , | |
| Ed Hilley | hilley001edw | 1906 | 5/15-9/29 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Jack Himes | himes-001joh | 1906 | -5/30 | 40 g. | St. Louis | National League | St. Louis, MO |
| Jack Himes | himes-001joh | 1906 | 6/2-9/16 | Indianapolis Indians | American Association | , | |
| Charles Hinchcliffe | 1906 | Corbin KS | Independent | , | |||
| Bill Hinchman | hinchm001wil | 1906 | 18 g. | Cincinnati | National League | Cincinnati, OH | |
| Bill Hinchman | hinchm001wil | 1906 | 5/22-9/16 | Columbus Senators | American Association | , | |
| Harry Hinchman | hinchm001har | 1906 | 5/11-9/23 | Binghamton Bingoes | New York State League | , | |
| Harry Hinds | 1906 | 19 g. | Lake Linden Sandy Cities | Northern-Copper Country League | , | ||
| Harry Hinds | 1906 | +7/25-7/29+ | Duluth White Sox | Northern-Copper Country League | , | ||
| Hunkey Hines | hines-001hun | 1906 | 29 g. | Baton Rouge Cajuns | Cotton States League | , | |
| J. E. Hines | 1906 | 5/7 | Americus Pallbearers | Georgia State League | , | ||
| J. E. Hines | 1906 | 5/18 | Cordele | Georgia State League | , | ||
| J. E. Hines | 1906 | 5/23-7/23 | Roanoke Tigers | Virginia League | , | ||
| John Hinton | hinton001joh | 1906 | 5/24-6/1 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| John Hinton | hinton001joh | 1906 | 6/12- | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| Philip Hinton | 1906 | 4/26-9/8 | Richmond Colts | Virginia League | , | ||
| Arthur Hippert | hipper001gar | 1906 | no g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Arthur Hippert | hipper001gar | 1906 | 5/19-5/25 | Winnipeg Maroons | Northern-Copper Country League | , | |
| Arthur Hippert | hipper001gar | 1906 | 15 g. | Green Bay Colts | Wisconsin State League | , | |
| Bert Hise | hise--001ber | 1906 | Cleburne Railroaders | Texas League | , | ||
| Leo Hite | hite--001leo | 1906 | 5/4-7/18 | Shawnee Blues | South Central League | , | |
| Leo Hite | hite--001leo | 1906 | 8/12-8/17 | Hobart | , | ||
| Roy Hitt | hitt--001roy | 1906 | 70 g. | San Francisco Seals | Pacific Coast League | , | |
| Oliver Hoag | 1906 | 1 g. | Los Angeles Angels | Pacific Coast League | , | ||
| Tracy Hoag | 1906 | 19 g. | Fresno Raisin Eaters | Pacific Coast League | , | ||
| Allan Hobbs | 1906 | +6/27+ | Emporia VA | Independent | , | ||
| Louis Hobbs | 1906 | +6/27+ | Emporia VA | Independent | , | ||
| Dick Hoblitzell | hoblit001ric | 1906-08 | U. of Pittsburgh | College | , | ||
| George Hobson | 1906 | Punxsutawney Policemen | Interstate League | , | |||
| Harry Hoch | hoch--001har | 1906 | Kane? | , | |||
| Carson Hodge | hodge-001car | 1906 | 4/27-5/17 | Lancaster Red Roses | Tri-State League | , | |
| Carson Hodge | hodge-001car | 1906 | 5/26-9/6 | Holyoke Paperweights | Connecticut State League | , | |
| George Hodson | hodson002geo | 1906 | +9/16+ | Umpire | Pacific Coast League | , | |
| Ray? Hodson | 1906 | 5/3 | Freeport Pretzels | Wisconsin State League | , | ||
| Ray? Hodson | 1906 | 6/8 | La Crosse Pinks | Wisconsin State League | , | ||
| Art Hoelskoetter | hoelsk001art | 1906 | 94 g. | St. Louis | National League | St. Louis, MO | |
| Jack Hoey | hoey--001joh | 1906 | 24 g. | Holy Cross Col. | College | , | |
| Jack Hoey | hoey--001joh | 1906 | 6/27- | 94 g. | Boston | American League | Boston, MA |
| Augie Hoff | hoff--001aug | 1906 | 4/16-9/3 | Savannah Indians | South Atlantic League | , | |
| Bill Hoffer | hoffer003wil | 1906 | 5/7-6/5 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Bill Hoffer | hoffer003wil | 1906 | Umpire | Illinois-Indiana-Iowa League | , | ||
| Hoffman | 1906 | +8/14-8/27+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Hoffman | 1906 | 35 g. | Mobile Sea Gulls | Cotton States League | , | ||
| Hoffman | hoffma062--- | 1906 | Niles | Ohio-Pennsylvania League | , | ||
| Charles Hoffman | 1906 | +8/6+ | Hope KS | Independent | , | ||
| Fred Hoffman | hoffma001fre | 1906 | +4/23-5/16 | Jacksonville Jays | South Atlantic League | , | |
| Fred Hoffman | hoffma001fre | 1906 | 93 g. | Mobile Sea Gulls | Cotton States League | , | |
| Izzy Hoffman | hoffma004har | 1906 | 4/26-9/8 | Holyoke Paperweights | Connecticut State League | , | |
| Jack Hoffman | 1906 | Alliance OH | Independent | , | |||
| Larry Hoffman | hoffma001law | 1906 | 4/11-5/26 | Atlanta Crackers | Southern Association | , | |
| Larry Hoffman | hoffma001law | 1906 | 5/28-8/2 | Savannah Indians | South Atlantic League | , | |
| Larry Hoffman | hoffma001law | 1906 | 8/7-9/15 | Atlanta Crackers | Southern Association | , | |
| Richard Hoffman | 1906 | 4/25-6/27+ | Waco Navigators | Texas League | , | ||
| Thomas Hoffman | hoffma002tho | 1906 | +7/12+ | Umpire | Texas League | , | |
| Walter Hoffman | 1906 | Kalamazoo White Sox | Southern Michigan League | , | |||
| Jesse Hoffmeister | hoffme002jes | 1906 | 74 g. | Ottumwa Champs | Iowa League | , | |
| Jesse Hoffmeister | hoffme002jes | 1906 | Oskaloosa Quakers | Iowa League | , | ||
| William Hoffner | 1906 | 4/26-7/6 | Umpire | Virginia League | , | ||
| Hoffstetter | 1906 | Adrian College | College | , | |||
| Hoffstetter | 1906 | no g. | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Hoffstetter | 1906 | 6/11 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| Solly Hofman | hofman001art | 1906 | 64 g. | Chicago | National League | Chicago, IL | |
| Marty Hogan | hogan-002mar | 1906 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | ||
| Wallace Hogan | hogan-002wal | 1906 | 154 g. | Fresno Raisin Eaters | Pacific Coast League | , | |
| Edward Hogerty | 1906 | 11 g. | Holy Cross Univ. | College | , | ||
| Edward Hogerty | 1906 | -7/18 | Rutland | Northern Independent League | , | ||
| Edward Hogerty | 1906 | 7/21-9/5 | Waterbury Authors | Connecticut State League | , | ||
| Bill Hogg | hogg--002wil | 1906 | 28 g. | New York | American League | New York, NY | |
| John Hoggatt | 1906 | McPherson KS | Independent | , | |||
| George Hogreiver | hogrie001geo | 1906 | 5/2-9/29 | Des Moines Champs | Western League | , | |
| Bradley Hogue | hogue-001b-- | 1906 | 5/24-6/27 | Portsmouth Truckers | Virginia League | , | |
| Bradley Hogue | hogue-001b-- | 1906 | 6/29 | Norfolk Tars | Virginia League | , | |
| Bradley Hogue | hogue-001b-- | 1906 | 7/3-7/28 | Camden | South Carolina League | , | |
| John Hole | 1906 | no g. | Youngstown Ohio Works | Ohio-Pennsylvania League | , | ||
| Holland | 1906 | Broo.-Royal Giants | Independent | , | |||
| Holland | 1906 | Manchester CT | Independent | , | |||
| Howard Holland | hollan001how | 1906 | Newberry Col | College | , | ||
| Howard Holland | hollan001how | 1906 | 6/11-8/18 | Sumter Game Cocks | South Carolina League | , | |
| Jack Holland | hollan004joh | 1906 | 5/4-9/23 | Wichita Jobbers | Western Association | , | |
| Joseph Holland | hollan001jos | 1906 | 73 g. | Gulfport Crabs | Cotton States League | , | |
| Joseph Holland | hollan001jos | 1906 | 7/18-8/18 | Sumter Game Cocks | South Carolina League | , | |
| Michael Hollander | hollan003mic | 1906 | 21 g. | Beaumont Oilers | South Texas League | , | |
| Michael Hollander | hollan003mic | 1906 | Lake Charles Creoles | South Texas League | , | ||
| Michael Hollander | hollan003mic | 1906 | Amarillo Tx | Independent | , | ||
| Charles Hollingsworth | 1906 | 5/7-9/23 | Joplin Miners | Western Association | , | ||
| Wallace Hollingsworth | hollin001wal | 1906 | 4/26-6/4 | Baltimore Orioles | Eastern League | , | |
| Wallace Hollingsworth | hollin001wal | 1906 | 6/9-9/23 | Syracuse Stars | New York State League | , | |
| George Hollis | 1906 | +5/1+ | 12 g. | Vicksburg Hill Billies | Cotton States League | , | |
| Ed Holly | holly-002edw | 1906 | 121 g. | Johnstown Johnnies | Tri-State League | , | |
| Ed Holly | holly-002edw | 1906 | 7/18- | 10 g. | St. Louis | National League | St. Louis, MO |
| Holmes | 1906 | Bethany College | College | , | |||
| Holmes | 1906 | 6/21 | Chanute Browns | Kansas State League | , | ||
| Clarence Holmes | holmes001cla | 1906 | Univ. of Kansas | College | , | ||
| Clarence Holmes | holmes001cla | 1906 | 6/27-7/2+ | Shawnee Blues | South Central League | , | |
| David Holmes | 1906 | Coulterville IL | Independent | , | |||
| David Holmes | 1906 | 8/14-9/20 | Leavenworth Old Soldiers | Western Association | , | ||
| Ducky Holmes | holmes003jam | 1906 | 5/2-9/30 | Lincoln Ducklings | Western League | , | |
| Ducky Holmes | holmes001how | 1906 | 4/18-4/29 | St. Louis | National League | St. Louis, MO | |
| Ducky Holmes | holmes001how | 1906 | 5/15-9/16 | Indianapolis Indians | American Association | , | |
| Jim Holmes | holmes002jam | 1906 | Augusta Tourists | South Atlantic League | , | ||
| Jim Holmes | holmes002jam | 1906 | 9/8 | Philadelphia | American League | Philadelphia, PA | |
| Milan Holmes | holmes001mil | 1906 | Jersey City Skeeters | Eastern League | , | ||
| Milan Holmes | holmes001mil | 1906 | 103 g. | Wausau Lumberjacks | Wisconsin State League | , | |
| Milan Holmes | holmes001mil | 1906 | Green Bay Colts | Wisconsin State League | , | ||
| Holstein | 1906 | +6/5-6/8 | Grand Forks Forkers | Northern-Copper Country League | , | ||
| Chester Holstrom | 1906 | +5/13+ | Holtzermanns | Independent | , | ||
| Earl Holt | holt--001ear | 1906 | 5/17-9/8 | Lynchburg Shoemakers | Virginia League | , | |
| Harvey Holt | 1906 | 5/18-5/30 | Roanoke Tigers | Virginia League | , | ||
| Harvey Holt | 1906 | 6/11-7/7 | Georgetown | South Carolina League | , | ||
| Pearl Holycross | holycr001pea | 1906 | 53 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | |
| Buck Hooker | hooker001wil | 1906 | 120 g. | Vicksburg Hill Billies | Cotton States League | , | |
| Kirby Hoon | hoon--001kir | 1906 | 4/28-9/13 | Butte Miners | Northwestern League | , | |
| William Hoopes | hoopes000wil | 1906 | , | ||||
| Hoops | 1906 | 7/13 | Norfolk Tars | Virginia League | , | ||
| Regis Hoops | 1906 | Augu-Cherokees | Independent | , | |||
| Clifford Hoover | hoover001cli | 1906 | Piedmont WV | Independent | , | ||
| Clifford Hoover | hoover001cli | 1906 | 6/11-7/11 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| Clifford Hoover | hoover001cli | 1906 | 7/21-8/1 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Frederick Hoover | 1906 | Piedmont | Independent | , | |||
| Lloyd Hoover | hoover001llo | 1906 | Superior MI | Semi-professional | , | ||
| Lloyd Hoover | hoover001llo | 1906 | Umpire | Northern League | , | ||
| Hope | 1906 | 5/22 | Muskogee Indians | South Central League | , | ||
| Sam Hope | hope--001sam | 1906 | New Haven Blues | Connecticut State League | , | ||
| Sam Hope | hope--001sam | 1906 | 90ab | Paterson Intruders | Hudson River League | , | |
| Bill Hopke | hopke-001wil | 1906 | 4/27-9/25 | Canton Chinamen | Central League | , | |
| Buck Hopkins | hopkin004joh | 1906 | 4/26-9/8 | Norfolk Tars | Virginia League | , | |
| Lee Hopkins | hopkin001leo | 1906 | 75 g. | Oshkosh Indians | Wisconsin State League | , | |
| Lee Hopkins | hopkin001leo | 1906 | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Lee Hopkins | hopkin001leo | 1906 | Green Bay Colts | Wisconsin State League | , | ||
| Sis Hopkins | hopkin002a-- | 1906 | 5/17-7/26+ | Hancock Infants | Northern-Copper Country League | , | |
| Sis Hopkins | hopkin002a-- | 1906 | +8/5-8/14+ | Duluth White Sox | Northern-Copper Country League | , | |
| Sis Hopkins | hopkin002a-- | 1906 | 8/22-9/20+ | Tecumseh | Southern Michigan League | , | |
| Tony Horath | horath001ant | 1906 | Ottumwa Champs | Iowa League | , | ||
| Tony Horath | horath001ant | 1906 | Fort Dodge Gypsumites | Iowa League | , | ||
| Maurice Hord | hord--001mau | 1906 | , | ||||
| William Horn | horn--001cas | 1906 | no g. | Dayton Veterans | Central League | , | |
| William Horn | horn--001cas | 1906 | +5/18-6/5+ | Marion | Interstate Association | , | |
| William Horn | horn--001cas | 1906 | +7/23-9/18+ | Saginaw | Southern Michigan League | , | |
| William Horn | horn--001cas | 1906 | Kalamazoo MI | Independent | , | ||
| William Horn | horn--002wil | 1906 | 90 g. | Lake Charles Creoles | South Texas League | , | |
| Edward Hornsby | 1906 | 4/26 | Waco Navigators | Texas League | , | ||
| John Hornung | 1906 | 4/26-4/27 | Temple Boll Weevils | Texas League | , | ||
| William Horrell | 1906 | 4/19- | KS Weslyan Univ | College | , | ||
| William Horrell | 1906 | Abilene KS | Independent | , | |||
| Harry Horton | horton002har | 1906 | 5/7-7/10 | Springfield Midgets | Western Association | , | |
| Harry Horton | horton002har | 1906 | 7/16-7/21 | Topeka White Sox | Western Association | , | |
| Harry Horton | horton002har | 1906 | 7/27-9/23 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Walter Horton | 1906 | Roeblings | , | ||||
| James Hotton | hotton000jam | 1906 | +6/5-7/25+ | Hancock Infants | Northern-Copper Country League | , | |
| James Hotton | hotton000jam | 1906 | +8/7-8/17+ | Fargo | Northern-Copper Country League | , | |
| Houk | 1906 | 5/1 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| John House | house-001joh | 1906 | 127 g. | Burlington Pathfinders | Iowa League | , | |
| Lee House | 1906 | Auburn | Empire State League | , | |||
| Ed Householder | househ001edw | 1906 | 137 g. | Seattle Siwashes | Pacific Coast League | , | |
| Ed Householder | househ001edw | 1906 | San Francisco Seals | Pacific Coast League | , | ||
| William Householder | househ001wil | 1906 | 114 g. | Wausau Lumberjacks | Wisconsin State League | , | |
| Ben Houser | houser001ben | 1906 | 4/25-8/4 | Altoona Mountaineers | Tri-State League | , | |
| Ben Houser | houser001ben | 1906 | 8/6-9/15 | Lancaster Red Roses | Tri-State League | , | |
| Benjamin Houser | houser001ben | 1906 | 117 g. | Altoona Mountaineers | Tri-State League | , | |
| Benjamin Houser | houser001ben | 1906 | Lancaster Red Roses | Tri-State League | , | ||
| William Houser | houser001wil | 1906 | 5/30-9/15 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| William Houser | houser001wil | 1906 | 5/30-9/15 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| Robert Houston | housto001rob | 1906 | +6/5-9/3 | Macon Brigands | South Atlantic League | , | |
| Lefty Houtz | houtz-001fre | 1906 | 4/12-9/14 | Montgomery Senators | Southern Association | , | |
| Joe Hovlik | hovlik001jos | 1906 | 8/10-8/12 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Chick Howard | 1906 | 7/16-8/20 | Lynn Shoemakers | New England League | , | ||
| Clarence Howard | 1906 | Butte Miners | Northwestern League | , | |||
| Del Howard | howard001geo | 1906 | 147 g. | Boston | National League | Boston, MA | |
| E. S. Howard | 1906 | 6/28-9/15 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| Ernie Howard | howard002ern | 1906 | 4/16-9/3 | Savannah Indians | South Atlantic League | , | |
| Harry Howard | 1906 | Kearney NB | Independent | , | |||
| Harry Howard | 1906 | 10 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Ivan Howard | howard001ivo | 1906 | 5/2-10/1 | Omaha Rourkes | Western League | , | |
| Richard Howard | 1906 | 5/4 | New Bedford Whalers | New England League | , | ||
| Robert Howard | howard005rob | 1906 | 4/16-6/1 | Augusta Tourists | South Atlantic League | , | |
| Robert Howard | howard005rob | 1906 | 6/7-9/8 | Danville Red Sox | Virginia League | , | |
| Chauncey Howell | howell002cha | 1906 | +7/20-7/25+ | Hancock Infants | Northern-Copper Country League | , | |
| Chauncey Howell | howell002cha | 1906 | +8/9-9/3 | Houghton Giants | Northern-Copper Country League | , | |
| Chauncey Howell | howell002cha | 1906 | 9/17 | St. Paul Saints | American Association | , | |
| Harry Howell | howell001hen | 1906 | St. Louis | American League | St. Louis, MO | ||
| Robert Howell | howell001rob | 1906 | 5/3-6/2+ | Independence Coyotes | Kansas State League | , | |
| Robert Howell | howell001rob | 1906 | 6/7-9/9 | Parsons Preachers | Kansas State League | , | |
| William Howie | howie-001wil | 1906 | 5/4-7/14 | Topeka White Sox | Western Association | , | |
| Howland | 1906 | 5/12 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Harry Howlett | 1906 | 5/15-5/17+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Daniel Howley | howley001dan | 1906 | 5/2 | Indianapolis Indians | American Association | , | |
| Daniel Howley | howley001dan | 1906 | 9/25 | 75 g. | Grand Rapids Wolverines | Central League | , |
| Hoy | hoy---001--- | 1906 | Sacramento Cordovas | California League | , | ||
| Hoy | 1906 | 4/30 | Tacoma Tigers | Northwestern League | , | ||
| Vincent Hoye | 1906 | Brown Univ. | College | , | |||
| Vincent Hoye | 1906 | +7/2-7/19 | Plattsburgh | Northern Independent League | , | ||
| George Hoyt | 1906 | Cheboygan | Independent | , | |||
| George Hoyt | 1906 | Cadillac MI | Independent | , | |||
| George Hoyt | 1906 | +9/2+ | Saginaw | Southern Michigan League | , | ||
| Arthur Hubbard | hubbar001a-- | 1906 | 24 g. | San Antonio Bronchos | South Texas League | , | |
| Arthur Hubbard | hubbar001a-- | 1906 | Lake Charles Creoles | South Texas League | , | ||
| Leo Huber | huber-001leo | 1906 | 117 g. | Meridian Ribboners | Cotton States League | , | |
| Leo Huber | huber-001leo | 1906 | +9/16+ | NOrl-Eddy | Semi-professional | , | |
| Thomas Huddleston | huddle001tho | 1906 | 4/29-5/21 | Fort Worth Panthers | Texas League | , | |
| Thomas Huddleston | huddle001tho | 1906 | 5/29-6/28 | Greenville Hunters | Texas League | , | |
| J. M. Hudson | 1906 | 5/17-5/22 | Americus Pallbearers | Georgia State League | , | ||
| Frank Huelsman | huelsm001fra | 1906 | 4/26-9/15 | Montreal Royals | Eastern League | , | |
| George Huff | huff--002geo | 1906 | Chicago | National League | Chicago, IL | ||
| Tobe Huffman | hauffm001--- | 1906 | 5/3-5/16+ | Independence Coyotes | Kansas State League | , | |
| Tobe Huffman | hauffm001--- | 1906 | 5/22- | Umpire | Kansas State League | , | |
| Tobe Huffman | hauffm001--- | 1906 | 5/26-6/15 | Bartlesville Indians | Kansas State League | , | |
| Tobe Huffman | hauffm001--- | 1906 | 6/20-6/30 | Chanute Browns | Kansas State League | , | |
| Tobe Huffman | hauffm001--- | 1906 | 7/4-7/17 | Webb City Goldbugs | Western Association | , | |
| Tobe Huffman | hauffm001--- | 1906 | 7/27 | Springfield Midgets | Western Association | , | |
| Hughes | 1906 | 5/30 | Roanoke Tigers | Virginia League | , | ||
| Hughes | 1906 | 6/25-7/7 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Billie Hughes | hughes008wil | 1906 | Guthrie Senators | South Central League | , | ||
| Ed Hughes | hughes004edw | 1906 | -5/31 | 2 g. | Boston | American League | Boston, MA |
| Ed Hughes | hughes004edw | 1906 | 6/21-7/27 | Harrisburg Senators | Tri-State League | , | |
| Ed Hughes | hughes004edw | 1906 | Peoria Distillers | Illinois-Indiana-Iowa League | , | ||
| George Hughes | hughes003geo | 1906 | 112 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Grant Hughes | 1906 | 5/3-5/14+ | Bartlesville Indians | Kansas State League | , | ||
| Grant Hughes | 1906 | 8/14-8/16 | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| James Hughes | hughes004jam | 1906 | 124 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | |
| John Hughes | hughes001joh | 1906 | Poughkeepsie Colts | Hudson River League | , | ||
| Tom Hughes | hughes005tho | 1906 | 5/3-9/14 | Atlanta Crackers | Southern Association | , | |
| Tom Hughes | hughes005tho | 1906 | 9/18- | 3 g. | New York | American League | New York, NY |
| William Hughes | hughes008wil | 1906 | 5/11-5/18 | Guthrie Senators | South Central League | , | |
| William Hughes | hughes001wil | 1906 | Seneca Falls | Empire State League | , | ||
| Berne Hughey | 1906 | +5/27-7/13+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Berne Hughey | 1906 | +7/25-8/29+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| Billy Hulen | hulen-001bil | 1906 | , | ||||
| Thomas Huling | huling001tho | 1906 | 4/29-7/8 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| Thomas Huling | huling001tho | 1906 | 7/17-7/23 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Thomas Huling | huling001tho | 1906 | 7/30-9/29 | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Rudy Hulswitt | hulswi001rud | 1906 | 4/21-9/9 | Columbus Senators | American Association | , | |
| F. C. Hults | 1906 | Logan Square | Chicago City League | , | |||
| Elder Humbird | 1906 | 7/19 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| John Hummel | hummel001joh | 1906 | 97 g. | Brooklyn | National League | Brooklyn, NY | |
| Harley Humphreys | 1906 | 136 g. | Lancaster Lanks | Ohio-Pennsylvania League | , | ||
| W. Humphries | 1906 | +6/29+ | Pitt.-Columbia | Valley | , | ||
| W. Humphries | 1906 | 8/10 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Hunt | 1906 | 10 g. | Macon Brigands | South Atlantic League | , | ||
| Carl Hunt | hunt--001car | 1906 | Springfield Midgets | Western Association | , | ||
| Harry Hunt | hunt--001har | 1906 | 4/17-5/11 | Macon Brigands | South Atlantic League | , | |
| Harry Hunt | hunt--001har | 1906 | 46 g. | Mobile Sea Gulls | Cotton States League | , | |
| Harry Hunt | hunt--001har | 1906 | 12 g. | Galveston Sand Crabs | South Texas League | , | |
| Louis Hunt | hunt--001lou | 1906 | Evansville River Rats | Central League | , | ||
| Louis Hunt | hunt--001lou | 1906 | Fort Wayne | Interstate Association | , | ||
| Hunter | 1906 | 8/20-8/22 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Hunter | 1906 | 7/29 | Parsons Preachers | Kansas State League | , | ||
| Hunter | 1906 | 8/5 | Chanute Browns | Kansas State League | , | ||
| Hunter | 1906 | +9/3-9/6+ | Bartlesville Indians | Kansas State League | , | ||
| Hunter | 1906 | San Francisco Orphans | California League | , | |||
| Frederick Hunter | hunter002fre | 1906 | 4/26-9/22 | Baltimore Orioles | Eastern League | , | |
| Ralph Hunter | 1906 | 120 g. | Beaumont Oilers | South Texas League | , | ||
| Fred Huntington | huntin002fre | 1906 | 5/10-5/21 | Norfolk Tars | Virginia League | , | |
| Dan Hupp | hupp--002dan | 1906 | 117 g. | Fort Dodge Gypsumites | Iowa League | , | |
| Ed Hurlburt | hurlbu001edw | 1906 | 4/12-9/14 | Memphis Egyptians | Southern Association | , | |
| George Hurlburt | hurlbu001geo | 1906 | no g. | Toronto Maple Leafs | Eastern League | , | |
| George Hurlburt | hurlbu001geo | 1906 | 5/11-5/26 | Wilkes-Barre Barons | New York State League | , | |
| George Hurlburt | hurlbu001geo | 1906 | 6/3-9/22 | Topeka White Sox | Western Association | , | |
| Hurley | 1906 | +5/20+ | Elmira NY | Independent | , | ||
| Bill Hurley | hurley003wil | 1906 | 4/28-9/3 | Grays Harbor Lumbermen | Northwestern League | , | |
| Jerry Hurley | hurley001jer | 1906 | 5/11-9/23 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Timothy Hurley | 1906 | 4/27 | Lawrence Colts | New England League | , | ||
| Bert Husting | hustin001ber | 1906 | President | Fox River League | , | ||
| Harry Huston | huston001har | 1906 | 5/4-8/9 | Leavenworth Old Soldiers | Western Association | , | |
| Harry Huston | huston001har | 1906 | 9/3-9/19 | Philadelphia | National League | Philadelphia, PA | |
| Jack Huston | huston001jac | 1906 | 4/28-9/3 | Umpire | Northwestern League | , | |
| Edward Hutchcroft | hutchc001ed- | 1906 | 119 g. | Austin Senators | South Texas League | , | |
| W. A. Hutchins | 1906 | 5/3-6/19+ | Bartlesville Indians | Kansas State League | , | ||
| Ed Hutchinson | hutchi002ed- | 1906 | 4/28-5/30 | Spokane Indians | Northwestern League | , | |
| Ed Hutchinson | hutchi002ed- | 1906 | 6/3-9/3 | Tacoma Tigers | Northwestern League | , | |
| Fred Hutchinson | hutchi001fre | 1906 | 5/3-6/3 | Pittsburg/Vinita Champs | Kansas State League | , | |
| Fred Hutchinson | hutchi001fre | 1906 | 6/4-7/4 | Pittsburg/Vinita Champs | Kansas State League | , | |
| Fred Hutchinson | hutchi001fre | 1906 | 7/6-7/19 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Fred Hutchinson | hutchi001fre | 1906 | +7/29-9/9 | Bartlesville Indians | Kansas State League | , | |
| Thomas Hutchinson | 1906 | Holyoke Paperweights | Connecticut State League | , | |||
| Amos Hutter | hutter001amo | 1906 | 80 g. | Beaumont Oilers | South Texas League | , | |
| William Hycoop | hycoop000wil | 1906 | +6/28-8/28+ | Kalamazoo White Sox | Southern Michigan League | , | |
| Pat Hynes | hynes-001pat | 1906 | 4/18-9/16 | Milwaukee Brewers | American Association | , | |
| Hyniger | 1906 | Princeton Univ | College | , | |||
| Hyslop | 1906 | +5/17+ | U. North Dakota | College | , | ||
| H. B. Iba | 1906 | 5/3- | Umpire | Kansas State League | , | ||
| Albert Ike | ike---001alb | 1906 | 6/9-6/24 | Umpire | Virginia League | , | |
| Ned Ilger | ilger-001ned | 1906 | 115 g. | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Ned Ilger | ilger-001ned | 1906 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Ned Ilger | ilger-001ned | 1906 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Frank Ingalls | ingall001fra | 1906 | Stockton Millers | California League | , | ||
| William Ingerton | 1906 | 137 g. | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | ||
| Louis Ingraham | 1906 | 8/11-9/8 | New London Whalers | Connecticut State League | , | ||
| Happy Iott | iott--001fre | 1906 | Fitchburg MA | Independent | , | ||
| Happy Iott | iott--001fre | 1906 | New Bedford Whalers | New England League | , | ||
| Charles Irby | irby--001cha | 1906 | 4/28-9/3 | Butte Miners | Northwestern League | , | |
| Charles Irby | irby--001cha | 1906 | 9/16-9/23 | Joplin Miners | Western Association | , | |
| Paul Irmscher | irmsch001pau | 1906 | Mt. Carmel IN | Independent | , | ||
| Paul Irmscher | irmsch001pau | 1906 | +6/28+ | Tell City IN | Independent | , | |
| Irwin | 1906 | 6/21 | Greenville Hunters | Texas League | , | ||
| Irwin | 1906 | 6/12-6/28 | Manning | South Carolina League | , | ||
| Arthur Irwin | irwin-001art | 1906 | 4/25-9/17 | Altoona Mountaineers | Tri-State League | , | |
| Charlie Irwin | irwin-001cha | 1906 | San Francisco Seals | Pacific Coast League | , | ||
| John Irwin | irwin-001joh | 1906 | Bowdoin College | College | , | ||
| Thomas Irwin | irwin-002tho | 1906 | no g. | Philadelphia | National League | Philadelphia, PA | |
| William Irwin | irvin-001wil | 1906 | Kingston Colonials | Hudson River League | , | ||
| Harry Isbell | 1906 | 6/20 | Tacoma Tigers | Northwestern League | , | ||
| John Isbell | isbell001war | 1906 | 5/6-6/6 | Topeka White Sox | Western Association | , | |
| John Isbell | isbell001war | 1906 | 6/19-6/23 | Wichita Jobbers | Western Association | , | |
| John Isbell | isbell001war | 1906 | 7/12-7/15 | Joplin Miners | Western Association | , | |
| J. Iseman | 1906 | 8/10-8/18 | Manning | South Carolina League | , | ||
| James Ison | 1906 | +5/2+ | Georgia Tech | College | , | ||
| James Ison | 1906 | 5/19-5/22 | Macon Brigands | South Atlantic League | , | ||
| James Ison | 1906 | 6/14-9/4 | Gulfport Crabs | Cotton States League | , | ||
| Henry Iverson | iverso001hen | 1906 | Stockton Millers | California League | , | ||
| Ives | ives--001geo | 1906 | 106 g. | Freeport Pretzels | Wisconsin State League | , | |
| Fred Jacklitsch | jackli001fre | 1906 | Providence Grays | Eastern League | , | ||
| Fred Jacklitsch | jackli001fre | 1906 | 6/4-9/15 | York Penn Parks | Tri-State League | , | |
| Jackson | 1906 | 5/25 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Jackson | 1906 | 8/22-9/15 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | ||
| A. E. Jackson | 1906 | 8/15-9/1 | Houston Buffaloes | South Texas League | , | ||
| Andrew Jackson | 1906 | Emory & Henry | College | , | |||
| Andrew Jackson | 1906 | Dorchester VA | Independent | , | |||
| Charles Jackson | jackso005cha | 1906 | 5/4-9/29 | Sioux City Packers | Western League | , | |
| Early Jackson | 1906 | 31ab | Houston Buffaloes | South Texas League | , | ||
| George Jackson | 1906 | 5/7-5/17 | Jackson Senators | Cotton States League | , | ||
| Herbert Jackson | jackso001cha | 1906 | 29 g. | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Herbert Jackson | jackso001cha | 1906 | Akron Rubbernecks | Ohio-Pennsylvania League | , | ||
| Herbert Jackson | jackso001cha | 1906 | 8/11-9/15 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| James Jackson | jackso005jam | 1906 | 7/13-9/8 | Norfolk Tars | Virginia League | , | |
| Jim Jackson | jackso002jam | 1906 | -9/28 | 105 g. | Cleveland | American League | Cleveland, OH |
| Morris Jackson | 1906 | 5/30-9/8 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| N. Jackson | 1906 | Houston Buffaloes | South Texas League | , | |||
| Owen Jackson | jackso001owe | 1906 | 5/24-5/30 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | |
| William Jackson | jackso008wil | 1906 | 4/26-6/30 | Greenville Hunters | Texas League | , | |
| William Jackson | jackso008wil | 1906 | 7/6-9/3 | Waco Navigators | Texas League | , | |
| Mike Jacob | jacobs001mor | 1906 | 4/16-4/28 | Charleston Sea Gulls | South Atlantic League | , | |
| Mike Jacob | jacobs001mor | 1906 | 5/8-6/30 | Macon Brigands | South Atlantic League | , | |
| Mike Jacob | jacobs001mor | 1906 | 7/29-9/23 | Umpire | Western Association | , | |
| T. B. Jacobs | 1906 | 6/21-6/25 | Fort Scott Giants | Kansas State League | , | ||
| T. B. Jacobs | 1906 | 8/16-8/21+ | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| T. B. Jacobs | 1906 | 8/26+ | Parsons Preachers | Kansas State League | , | ||
| Beany Jacobson | jacobs001alb | 1906 | 24 g. | St. Louis | American League | St. Louis, MO | |
| Jacob Jacoby | jacoby001jac | 1906 | Hazleton | Atlantic League | , | ||
| Charlie Jaeger | jaeger001cha | 1906 | 24 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| James | 1906 | 7/14 | San Antonio Bronchos | South Texas League | , | ||
| James | 1906 | 6/11-7/6 | Orangeburg | South Carolina League | , | ||
| Bobby? James | 1906 | 7/4-7/18 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Richard James | james-002ric | 1906 | 5/19-9/23 | Troy Trojans | New York State League | , | |
| Robert James | james-002rob | 1906 | 4/18-6/25 | Indianapolis Indians | American Association | , | |
| William James | james-032--- | 1906 | Wash.&Jeff. Col. | College | , | ||
| William James | james-032--- | 1906 | 5/26-6/19 | Washington | Pennsylvania-Ohio-Maryland League | , | |
| William James | james-032--- | 1906 | Wash.&Jeff. Col. | College | , | ||
| F. O. Jamieson | 1906 | Boone/Clinton Miners | Iowa League | , | |||
| Frank Jansa | jansa-001fra | 1906 | 8 g. | Seattle Siwashes | Pacific Coast League | , | |
| Henry Jansing | jansin001hen | 1906 | 4/11-9/14 | Nashville Volunteers | Southern Association | , | |
| Ferd Jarrott | jarrot001fer | 1906 | 5/12-9/27 | Sioux City Packers | Western League | , | |
| Thomas Jarrott | jarrot001tho | 1906 | 5/19 | Troy Trojans | New York State League | , | |
| Thomas Jarrott | jarrot001tho | 1906 | Oil City-Jamestown Oseejays | Interstate League | , | ||
| Jack Jarvis | jarvis005wil | 1906 | 5/3-9/1 | Fort Worth Panthers | Texas League | , | |
| A. G. Jeffries | jeffri001a-- | 1906 | 57 g. | Austin Senators | South Texas League | , | |
| A. G. Jeffries | jeffri001a-- | 1906 | -9/9 | 21 g. | Parsons Preachers | Kansas State League | , |
| Jim Jeffries | jeffri001j-- | 1906 | 104 g. | Jackson Senators | Cotton States League | , | |
| J. E. Jegglin | jeggli001j-- | 1906 | 5/6-5/16 | Fort Scott Giants | Kansas State League | , | |
| J. E. Jegglin | jeggli001j-- | 1906 | 5/19- | Independence Coyotes | Kansas State League | , | |
| J. E. Jegglin | jeggli001j-- | 1906 | +6/27+ | Pittsburg/Vinita Champs | Kansas State League | , | |
| J. E. Jegglin | jeggli001j-- | 1906 | 7/7-7/25 | Muskogee Indians | South Central League | , | |
| J. E. Jegglin | jeggli001j-- | 1906 | +9/13+ | 16 g. | Parsons Preachers | Kansas State League | , |
| J. E. Jegglin | jeggli001j-- | 1906 | Scammon | Independent | , | ||
| Otto Jehl | 1906 | 7/28+ | 3 g. | Baton Rouge Cajuns | Cotton States League | , | |
| Sidney Jehl | 1906 | 5/21-5/23 | Galveston Sand Crabs | South Texas League | , | ||
| Sidney Jehl | 1906 | 5/26-6/17 | Austin Senators | South Texas League | , | ||
| Sidney Jehl | 1906 | 6/19-7/14 | San Antonio Bronchos | South Texas League | , | ||
| Sidney Jehl | 1906 | +7/20-8/12+ | 25 g. | Waco Navigators | Texas League | , | |
| Jennette | 1906 | 8/26-9/1 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | ||
| Jennings | 1906 | +7/20+ | Shawnee Blues | South Central League | , | ||
| Hughie Jennings | jennin001hug | 1906 | 5/1-9/22 | Baltimore Orioles | Eastern League | , | |
| Jacob Jennis | 1906 | 8/13-8/16 | Wilkes-Barre Barons | New York State League | , | ||
| Jensen | 1906 | 41 ab | Hudson Marines | Hudson River League | , | ||
| Si Jensen | jensen001erv | 1906 | no g. | New York | American League | New York, NY | |
| Si Jensen | jensen001erv | 1906 | Newburgh Hill Climbers | Hudson River League | , | ||
| Guy Jepson | 1906 | +7/29+ | Chanute-Buffalo | Independent | , | ||
| Guy Jepson | 1906 | 8/25 | Chanute Browns | Kansas State League | , | ||
| Joe Jerger | jerger001jos | 1906 | 4/27-9/6 | Fall River Indians | New England League | , | |
| Joe Jerger | jerger001jos | 1906 | 9/20-9/23 | Wheeling Stogies | Central League | , | |
| Clarence Jessup | jessup001cla | 1906 | 5/3-5/24+ | Marion | Interstate Association | , | |
| Clarence Jessup | jessup001cla | 1906 | +7/22-9/18+ | Saginaw | Interstate Association | , | |
| Jeter | 1906 | 4/27-5/7 | Roanoke Tigers | Virginia League | , | ||
| R. Jobeson | 1906 | 8/22-9/8 | Norfolk Tars | Virginia League | , | ||
| Harold Johns | johns-001har | 1906 | 28 g. | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Ollie Johns | johns-001oli | 1906 | 4/28-9/24 | Dayton Veterans | Central League | , | |
| Johnson | 1906 | 7/5-7/11 | Georgetown | South Carolina League | , | ||
| Johnson | 1906 | 7/9-8/11 | Manning | South Carolina League | , | ||
| Johnson | 1906 | +4/30-5/2 | Terre Haute Hottentots | Central League | , | ||
| Johnson | 1906 | 5/3-5/23 | Grand Rapids Wolverines | Central League | , | ||
| Johnson | 1906 | +6/11+ | Springfield Babes | Central League | , | ||
| Johnson | 1906 | 7/2 | Hornellsville | Southern Tier | , | ||
| A. E. Johnson | 1906 | +7/21-8/9+ | Coffeyville Bricks | Kansas State League | , | ||
| A. E. Johnson | 1906 | +8/20-8/31+ | Independence Coyotes | Kansas State League | , | ||
| Abbie Johnson | johnso002abb | 1906 | Elmira NY | Independent | , | ||
| Abbie Johnson | johnso002abb | 1906 | 7/11- | DuBois Miners | Interstate League | , | |
| Abbie Johnson | johnso002abb | 1906 | Elmira NY | Independent | , | ||
| Arthur Johnson | 1906 | 5/4-5/11 | Wichita Jobbers | Western Association | , | ||
| Carlos Johnson | 1906 | 6/3-7/23 | Leavenworth Old Soldiers | Western Association | , | ||
| Carlos Johnson | 1906 | 7/27-9/23 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| Charlie Johnson | johnso005cha | 1906 | Bradford Drillers | Interstate League | , | ||
| Daniel Johnson | 1906 | 6/27 | Fall River Indians | New England League | , | ||
| Eke Johnson | johnso216--- | 1906 | Lewiston ME | Independent | , | ||
| Eke Johnson | johnso216--- | 1906 | +8/2+ | Montpelier-Barre | Northern Independent | , | |
| Fred Johnson | 1906 | 66 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Harold Johnson | johnso004har | 1906 | 31 g. | Boone/Clinton Miners | Iowa League | , | |
| John Johnson | johnso001ral | 1906 | 4/26-9/23 | South Bend Greens | Central League | , | |
| John Johnson | 1906 | Anderson | Interstate Association | , | |||
| John Johnson | 1906 | 16 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | ||
| Otis Johnson | johnso001oti | 1906 | 4/12-9/15 | Little Rock Travelers | Southern Association | , | |
| Roger Johnson | 1906 | 5/26-5/30 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Wait Johnson | 1906 | 8/13-8/21 | San Antonio Bronchos | South Texas League | , | ||
| Wilbur Johnson | 1906 | Boone/Clinton Miners | Iowa League | , | |||
| Wilbur Johnson | 1906 | Marshalltown Brownies | Iowa League | , | |||
| George Johnston | 1906-09 | U. S. Army | , | ||||
| William Johnstone | 1906 | 74 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | ||
| Edward Jokerst | 1906 | Houston Buffaloes | South Texas League | , | |||
| Joseph Jokerst | 1906 | 30 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | ||
| Jones | 1906 | 6/18-6/20 | York Penn Parks | Tri-State League | , | ||
| A. S. Jones | 1906 | Magnolia MS | Independent | , | |||
| A. S. Jones | 1906 | 7/13-7/14 | Vicksburg Hill Billies | Cotton States League | , | ||
| Alex Jones | jones-002ale | 1906 | 6/6-6/27 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Alex Jones | jones-002ale | 1906 | 8/13-9/15 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Charles Jones | jones-003w-- | 1906 | 4/26 | Cleburne Railroaders | Texas League | , | |
| Charles Jones | jones-003w-- | 1906 | 6/6-6/27 | Temple Boll Weevils | Texas League | , | |
| Charlie Jones | jones-005cha | 1906 | 131 g. | Washington | American League | Washington, DC | |
| Clyde Jones | 1906 | preseason | Columbia Gamecocks | South Atlantic League | , | ||
| Clyde? Jones | 1906 | 4/26-5/5 | Danville Red Sox | Virginia League | , | ||
| Cowboy Jones | jones-003alb | 1906 | 2 g. | Portland Beavers | Pacific Coast League | , | |
| Cowboy Jones | jones-003alb | 1906 | 19 g. | Meridian Ribboners | Cotton States League | , | |
| Cowboy Jones | jones-003alb | 1906 | 1 g. | Lincoln Ducklings | Western League | , | |
| Davy Jones | jones-005dav | 1906 | Detroit | American League | Detroit, MI | ||
| Doc Jones | jones-003w-- | 1906 | Cleburne Railroaders | Texas League | , | ||
| Doc Jones | jones-003w-- | 1906 | Temple Boll Weevils | Texas League | , | ||
| Elijah Jones | jones-001eli | 1906 | 5/5-9/14 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Jim Jones | jones-022jam | 1906 | 4/26-9/21 | Newark Sailors | Eastern League | , | |
| John Jones | jones-002joh | 1906 | 37 g. | Lincoln Ducklings | Western League | , | |
| Jumbo Jones | 1906 | 5/26-9/14 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Leo Jones | 1906 | Baker University | College | , | |||
| Leo Jones | 1906 | 20 g. | Chanute Browns | Kansas State League | , | ||
| Ross Jones | jones-003ros | 1906 | La Crosse Pinks | Wisconsin State League | , | ||
| Tom Jones | 1906 | 87 g. | Wausau Lumberjacks | Wisconsin State League | , | ||
| Tom Jones | 1906 | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | |||
| W. J. Jones | 1906 | 6/19-6/30 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| William Jones | jones-021wil | 1906 | 5/31-6/18 | Wichita Jobbers | Western Association | , | |
| William Jones | jones-021wil | 1906 | 7/11 | Topeka White Sox | Western Association | , | |
| William Jones | jones-021wil | 1906 | 7/27-9/23 | Umpire | Western Association | , | |
| Harry Jope | jope--001hen | 1906 | 4/28-9/8 | New Haven Blues | Connecticut State League | , | |
| Charlie Jordan | jordan003cha | 1906 | 7/23-9/7 | Norfolk Tars | Virginia League | , | |
| Dutch Jordan | jordan001ado | 1906 | 4/11-9/15 | Atlanta Crackers | Southern Association | , | |
| Slats Jordan | jordan001cla | 1906 | 5/26-7/5 | Portsmouth Truckers | Virginia League | , | |
| Tim Jordan | jordan002tim | 1906 | 129 g. | Brooklyn | National League | Brooklyn, NY | |
| George Josslyn | jossly001geo | 1906 | 4/28-8/28 | Providence Grays | Eastern League | , | |
| Michael Joyce | joyce-002mic | 1906 | 5/14-9/23 | Montreal Royals | Eastern League | , | |
| Frank Jude | jude--001fra | 1906 | 4/26-7/8 | Toledo Mud Hens | American Association | , | |
| Frank Jude | jude--001fra | 1906 | 7/9-10/7 | Cincinnati | National League | Cincinnati, OH | |
| Edward Justice | justic001edw | 1906 | 5/5-9/8 | Hartford Senators | Connecticut State League | , | |
| Walt Justis | justis001wal | 1906 | 17 g. | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Justus | 1906 | 7/17-7/18 | Darlington | South Carolina League | , | ||
| Justus | 1906 | 7/25-8/18 | Camden | South Carolina League | , | ||
| Justus | 1906 | 7/7-7/13 | Manning | South Carolina League | , | ||
| Justus | 1906 | 8/17 | Sumter Game Cocks | South Carolina League | , | ||
| Justus | 1906 | 8/22-8/27 | Richmond Colts | Virginia League | , | ||
| G. Justus | 1906 | 6/12-7/13 | Georgetown | South Carolina League | , | ||
| W. Justus | 1906 | 6/11-6/30 | Georgetown | South Carolina League | , | ||
| Gustav Jutzi | jutzi-001joh | 1906 | 5/25-7/7 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Gustav Jutzi | jutzi-001joh | 1906 | +9/29+ | Oil City-Jamestown Oseejays | Interstate League | , | |
| Bob Kahl | kahl--001rob | 1906 | 5/4-9/23 | Leavenworth Old Soldiers | Western Association | , | |
| Nick Kahl | kahl--001nic | 1906 | 4/20 | Columbus Senators | American Association | , | |
| Nick Kahl | kahl--001nic | 1906 | 5/3-5/5 | Indianapolis Indians | American Association | , | |
| Nick Kahl | kahl--001nic | 1906 | 8/8-9/23 | Leavenworth Old Soldiers | Western Association | , | |
| Mike Kahoe | kahoe-001mic | 1906 | 4/18-9/16 | Indianapolis Indians | American Association | , | |
| Charles Kain | kain--001cha | 1906 | Terre Haute Hottentots | Central League | , | ||
| Charles Kain | kain--001cha | 1906 | 5/24-9/8 | Portsmouth Truckers | Virginia League | , | |
| Nicholas Kaiser | kaiser001nic | 1906 | 86 g. | Calumet Aristocrats | Northern-Copper Country League | , | |
| George Kalkhoff | kalkho002geo | 1906 | 4/16-6/8 | Nashville Volunteers | Southern Association | , | |
| George Kalkhoff | kalkho002geo | 1906 | 6/26-9/3 | Savannah Indians | South Atlantic League | , | |
| Kane | 1906 | Wilmington DE | Independent | , | |||
| Ambrose Kane | kane--001amb | 1906 | 4/27- | Worcester Busters | New England League | , | |
| Ambrose Kane | kane--001amb | 1906 | -9/8 | Manchester Textiles | New England League | , | |
| Harry Kane | kane--001har | 1906 | -5/5 | 6 g. | Philadelphia | National League | Philadelphia, PA |
| Harry Kane | kane--001har | 1906 | 5/21-9/1 | Savannah Indians | South Atlantic League | , | |
| Harry Kane | kane--001har | 1906 | 9/7-9/15 | Williamsport Millionaires | Tri-State League | , | |
| Jerry Kane | kane--001jer | 1906 | 4/28-5/14 | 106 g. | Galveston Sand Crabs | South Texas League | , |
| Jerry Kane | kane--001jer | 1906 | 5/16- | Beaumont Oilers | South Texas League | , | |
| John Kane | kane--002joh | 1906 | 9 g. | Seattle Siwashes | Pacific Coast League | , | |
| Patrick Kane | kane--002pat | 1906 | 290 ab | Poughkeepsie Colts | Hudson River League | , | |
| Stephen Kane | 1906 | 4/18-9/16 | Umpire | American Association | , | ||
| Jay Kanzler | kanzle001jay | 1906 | 4/11-4/19 | Nashville Volunteers | Southern Association | , | |
| Jay Kanzler | kanzle001jay | 1906 | 4/16,4/20-9/3 | Columbia Gamecocks | South Atlantic League | , | |
| Elias Kaphan | kaphan001eli | 1906 | 78 g. | San Antonio Bronchos | South Texas League | , | |
| Elias Kaphan | kaphan001eli | 1906 | Galveston Sand Crabs | South Texas League | , | ||
| Ed Karger | karger001edw | 1906 | 4/15- | 6 g. | Pittsburgh | National League | Pittsburgh, PA |
| Ed Karger | karger001edw | 1906 | 25 g. | St. Louis | National League | St. Louis, MO | |
| William/Mike? Karline | 1906 | +9/9+ | Roch.-MapleLeafs | Independent | , | ||
| Charles Karnell | karnel001cha | 1906 | 52 g. | Wausau Lumberjacks | Wisconsin State League | , | |
| Charles Karnell | karnel001cha | 1906 | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| William Karney | karney001wil | 1906 | 5/1-7/30+ | Muskogee Indians | South Central League | , | |
| L. R. Kaub | 1906 | Guthrie Senators | South Central League | , | |||
| Harrison Kauffman | 1906 | 6/26-7/26 | Portsmouth Truckers | Virginia League | , | ||
| Harrison Kauffman | 1906 | 8/7-9/8 | Roanoke Tigers | Virginia League | , | ||
| Kaufman | 1906 | 7 g. | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| Richard Kaufman | 1906 | Bolivar MO | Independent | , | |||
| Richard Kaufman | 1906 | 7/23-8/19 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| William Kavanaugh | kavana001wil | 1906 | 5/21-9/8 | New Bedford Whalers | New England League | , | |
| Bill Kay | kay---001wal | 1906 | Staunton VA | Independent | , | ||
| Bill Kay | kay---001wal | 1906 | Martinsburg WV | Independent | , | ||
| John Keady | keady-001j-- | 1906 | Plattsburgh | Northern Independent League | , | ||
| John Keady | keady-001j-- | 1906 | 8/24-8/25 | Lawrence Colts | New England League | , | |
| William Keane | keane-002wil | 1906 | 4/26-9/6 | New London Whalers | Connecticut State League | , | |
| William Keane | 1906 | 4/18-4/25 | Toledo Mud Hens | American Association | , | ||
| William Keane | 1906 | 5/10-5/12 | Norfolk Tars | Virginia League | , | ||
| William Keane | 1906 | 5/24-9/7 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Tommy Kearns | 1906 | 5/1-6/4+ | Guthrie Senators | South Central League | , | ||
| Bobby Keefe | keefe-001rob | 1906 | 4/28-6/30 | Montreal Royals | Eastern League | , | |
| John Keefe | 1906 | 5/2-8/1 | Umpire | Western League | , | ||
| Thomas Keeler | keeler002--- | 1906 | +4/29+ | Evan.-Sterlings | Independent | , | |
| William Keeliher | kellih001wil | 1906 | +6/2+ | Auburn | Empire State League | , | |
| Joe Keenan | keenan001jos | 1906 | +7/2 | Montpelier-Barre | Northern Independent | , | |
| Joe Keenan | keenan001jos | 1906 | 7/4-9/8 | Springfield Ponies | Connecticut State League | , | |
| Roy Keener | 1906 | 6/10-7/15 | South Bend Greens | Central League | , | ||
| Kehoe | kehoe-000--- | 1906 | Shelburn | Independent | , | ||
| Kehoe | kehoe-000--- | 1906 | 7/26 | Terre Haute Hottentots | Central League | , | |
| John Kehoe | kehoe-001joh | 1906 | 4/28-9/8 | New Bedford Whalers | New England League | , | |
| Bill Keister | keiste001wil | 1906 | 4/26-9/23 | Jersey City Skeeters | Eastern League | , | |
| Charles Keith | 1906 | U. of Arkansas | College | , | |||
| Charles Keith | 1906 | 6/21-9/15 | Little Rock Travelers | Southern Association | , | ||
| George Kelb | kelb--002geo | 1906 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Kelch | 1906 | Penn Yan | Empire State League | , | |||
| Charles Kelcher | 1906 | Wildwood | , | ||||
| Charles Kelcher | 1906 | Milton | , | ||||
| Hugh Kellackey | kellac001hug | 1906 | 5/3-6/5 | Dayton Veterans | Central League | , | |
| Kellar | 1906 | 4/26-4/27 | Roanoke Tigers | Virginia League | , | ||
| Harry Keller | keller004har | 1906 | no g. | Nashville Volunteers | Southern Association | , | |
| Harry Keller | keller004har | 1906 | 4/28-6/2 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Harry Keller | keller004har | 1906 | 6/8-9/15 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Kelley | 1906 | +6/18+ | Ottawa | Northern Independent League | , | ||
| Kelley | 1906 | Hutc.-Diamond | Independent | , | |||
| Kelley | 1906 | 6/22-6/29 | Joplin Miners | Western Association | , | ||
| A. M. Kelley | 1906 | 47 g. | Burlington Pathfinders | Iowa League | , | ||
| Bill Kelley | kelley006wil | 1906 | 5/1-5/29 | Indianapolis Indians | American Association | , | |
| Bill Kelley | kelley006wil | 1906 | 6/1-7/27 | Grand Rapids Wolverines | Central League | , | |
| Edward Kelley | kelley002e-- | 1906 | Read.-Scholastic | Independent | , | ||
| J. Kelley | 1906 | Auburn | Empire State League | , | |||
| Joe Kelley | kelley002jos | 1906 | Cincinnati | National League | Cincinnati, OH | ||
| John Kelley | kelley004joh | 1906 | 5/30-6/1 | Lynn Shoemakers | New England League | , | |
| Leo Kelley | kelley002leo | 1906 | 5/1-5/24 | New Haven Blues | Connecticut State League | , | |
| M. Kelley | kelley003m-- | 1906 | 5/31-6/16 | York Penn Parks | Tri-State League | , | |
| M. Kelley | kelley003m-- | 1906 | 6/23-6/25 | Harrisburg Senators | Tri-State League | , | |
| M. Kelley | kelley003m-- | 1906 | 7/19 | York Penn Parks | Tri-State League | , | |
| Matthew Kelley | kelley001mat | 1906 | 5/1-5/17 | Haverhill Hustlers | New England League | , | |
| Mike Kelley | kelley002mic | 1906 | 4/19-9/17 | Minneapolis Millers | American Association | , | |
| Willis Kelley | kelley007wil | 1906 | 2 g. | Portland Beavers | Pacific Coast League | , | |
| William Kelliher | 1906 | Amherst Col. | College | , | |||
| William Kelliher | 1906 | Auburn | Empire State League | , | |||
| Kellogg | 1906 | 7/9 | Cleburne Railroaders | Texas League | , | ||
| Al Kellogg | kellog001alb | 1906 | +8/6+ | Newburgh Hill Climbers | Hudson River League | , | |
| Bill Kellogg | kellog001wil | 1906 | no g. | New London Whalers | Connecticut State League | , | |
| Bill Kellogg | kellog001wil | 1906 | 7/9 | Cleburne Railroaders | Texas League | , | |
| W. D.? Kellogg | 1906 | 8/25 | Baltimore Orioles | Eastern League | , | ||
| Win Kellum | kellum001win | 1906 | 4/18-9/16 | Indianapolis Indians | American Association | , | |
| Kelly | 1906 | 5/1-5/17 | Fall River Indians | New England League | , | ||
| Kelly | 1906 | 5/19-5/23+ | Grand Forks Forkers | Northern-Copper Country League | , | ||
| Kelly | 1906 | 4/29 | Houston Buffaloes | South Texas League | , | ||
| Billy Kelly | kelly-006wil | 1906 | 4/27- | 110 g. | Springfield Babes | Central League | , |
| Frank Kelly | 1906 | g. ? | Hancock Infants | Northern-Copper Country League | , | ||
| George Kelly | kelly-005geo | 1906 | 4/26-7/4 | Roanoke Tigers | Virginia League | , | |
| George Kelly | kelly-005geo | 1906 | 7/6-8/25 | Portsmouth Truckers | Virginia League | , | |
| James Kelly | kelly-002jam | 1906 | 5/10-5/22 | Wilkes-Barre Barons | New York State League | , | |
| James Kelly | kelly-002jam | 1906 | 205 ab | Newburgh Hill Climbers | Hudson River League | , | |
| John Kelly | kelly-003joh | 1906 | 4/26-9/22 | Baltimore Orioles | Eastern League | , | |
| John Kelly | 1906 | +5/20+ | 9 g. | Vicksburg Hill Billies | Cotton States League | , | |
| John Kelly | 1906 | 6/21-6/22 | Lowell Tigers | New England League | , | ||
| Thomas Kelly | 1906 | 4/27-9/22 | Umpire | Eastern League | , | ||
| William Kelly | kelly-006wil | 1906 | 4/27-9/25 | Canton Chinamen | Central League | , | |
| Billy Kelsey | kelsey002geo | 1906 | 4/25-6/11 | Temple Boll Weevils | Texas League | , | |
| Billy Kelsey | kelsey002geo | 1906 | 7/6-7/24 | St. Paul Saints | American Association | , | |
| Billy Kelsey | kelsey002geo | 1906 | 30 g. | Waterloo Microbes | Iowa League | , | |
| Bill Kemmer | kemmer001wil | 1906 | 5/4-6/14 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Bill Kemmer | kemmer001wil | 1906 | 39 g. | Lake Charles Creoles | South Texas League | , | |
| John Kemmerling | 1906 | Anderson | Interstate Association | , | |||
| John Kemmerling | 1906 | 24 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| John Kemmerling | 1906 | 8/4-9/15 | Little Rock Travelers | Southern Association | , | ||
| Kendall | 1906 | Northern-Copper Country League | , | ||||
| Kendall | 1906 | 9/3 | Indianapolis Indians | American Association | , | ||
| Ed Kenna | kenna-004edw | 1906 | 4/18-9/16 | Louisville Colonels | American Association | , | |
| Kennedy | 1906 | Oakland Commuters | California League | , | |||
| Albert Kennedy | kenned002alb | 1906 | 5/3-6/? | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Albert Kennedy | kenned002alb | 1906 | 97 g. | Ottumwa Champs | Iowa League | , | |
| Albert Kennedy | kenned002alb | 1906 | Boone/Clinton Miners | Iowa League | , | ||
| Brickyard Kennedy | kenned005wil | 1906 | 5/21- | 39 g. | Dayton Veterans | Central League | , |
| Charles Kennedy | kenned001cha | 1906 | 4/11-7/16 | Umpire | Southern Association | , | |
| Doc Kennedy | kenned001doc | 1906 | Olean Refiners | Interstate League | , | ||
| James Kennedy | kenned006jam | 1906 | 5/8-7/7 | Haverhill Hustlers | New England League | , | |
| James Kennedy | kenned006jam | 1906 | +7/25-8/25 | Ottawa | Northern Independent League | , | |
| James Kennedy | kenned006jam | 1906 | 9/1-9/22 | Baltimore Orioles | Eastern League | , | |
| James Kennedy | kenned001jam | 1906 | Keokuk Indians | Iowa League | , | ||
| John Kennedy | kenned009joh | 1906 | Olean Refiners | Interstate League | , | ||
| John Kennedy | kenned009joh | 1906 | 5/4- | 13 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , |
| John Kennedy | kenned001jac | 1906 | 4/30-9/28 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| John Kennedy | 1906 | 6/28-9/9 | Umpire | Connecticut State League | , | ||
| Louis Kennedy | kenned001lou | 1906 | Oakland Oaks | Pacific Coast League | , | ||
| Robert Kennedy | kenned004rob | 1906 | 4/16-4/17 | Columbia Gamecocks | South Atlantic League | , | |
| Robert Kennedy | kenned004rob | 1906 | 6/4-6/14 | Augusta Tourists | South Atlantic League | , | |
| Robert Kennedy | kenned004rob | 1906 | 6/23-6/25 | Sumter Game Cocks | South Carolina League | , | |
| Robert Kennedy | kenned004rob | 1906 | 6/26-8/18 | Darlington | South Carolina League | , | |
| Sam Kennedy | kenned001sam | 1906 | 4/26-9/7 | New London Whalers | Connecticut State League | , | |
| Sherman Kennedy | kenned001she | 1906 | 7/11-9/15 | Shreveport Pirates | Southern Association | , | |
| Henry Kenner(Kehner) | 1906 | 8/21 | Wilkes-Barre Barons | New York State League | , | ||
| William Kennoy | kennoy001wil | 1906 | 4/28-5/22 | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| William Kennoy | kennoy001wil | 1906 | 8/10-9/15 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Kenny | 1906 | +4/24+ | 3 g. | Baton Rouge Cajuns | Cotton States League | , | |
| Taylor Kensel | kensel001tay | 1906 | 130 g. | Oskaloosa Quakers | Iowa League | , | |
| John Kerin | kerin-001joh | 1906 | 4/26-9/22 | Umpire | Eastern League | , | |
| Henry Kern | 1906 | 5/5-5/18 | Leavenworth Old Soldiers | Western Association | , | ||
| Kerns | 1906 | 7/5 | Roanoke Tigers | Virginia League | , | ||
| Kerr | 1906 | +6/10+ | Moline IL | Independent | , | ||
| Kerr | 1906 | 7/29-9/14 | Oshkosh Indians | Wisconsin State League | , | ||
| Aaron F. Kerr | kerr--001aar | 1906 | -9/29 | 139 g. | Sharon Steels | Ohio-Pennsylvania League | , |
| Otto Kersten | kerste000ott | 1906 | Holtzgermanns | Independent | , | ||
| Dan Kerwin | kerwin001dan | 1906 | 4/18-9/16 | Louisville Colonels | American Association | , | |
| James Kerwin | 1906 | 56 g. | Green Bay Colts | Wisconsin State League | , | ||
| Fred Ketchum | ketchu001fre | 1906 | 5/2-9/30 | Lincoln Ducklings | Western League | , | |
| Louis Ketchum | ketchu001lou | 1906 | +5/16-6/25+ | Fort Scott Giants | Kansas State League | , | |
| Louis Ketchum | ketchu001lou | 1906 | 7/10-8/10 | Webb City Goldbugs | Western Association | , | |
| Walter Ketchum | 1906 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |||
| Philip Ketter | ketter001phi | 1906 | 4/16-5/12 | Columbia Gamecocks | South Atlantic League | , | |
| James Kettler | 1906 | Akron Rubbernecks | Ohio-Pennsylvania League | , | |||
| Michael Keveney | 1906 | +7/9-7/22+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Michael Keveney | 1906 | +8/9+ | Saginaw | Southern Michigan League | , | ||
| Michael Keveney | 1906 | +8/29-9/7+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| John Keyes | 1906 | 336 ab | Paterson Intruders | Hudson River League | , | ||
| Kibbe | 1906 | 5/26- | New London Whalers | Connecticut State League | , | ||
| Daniel Kick | 1906 | Charlotte MI | Independent | , | |||
| John Kiel | 1906 | Charlotte MI | Independent | , | |||
| John? Kiel | 1906 | +5/21-6/30+ | Lake Linden Sandy Cities | Northern-Copper Country League | , | ||
| John Kiernan | kierna001joh | 1906 | 4/27-9/8 | Fall River Indians | New England League | , | |
| George Kihm | kihm--001geo | 1906 | 4/18-9/16 | Columbus Senators | American Association | , | |
| B. Kiker | 1906 | Americus Pallbearers | Georgia State League | , | |||
| Edward Kilcoyne | kilcoy001edw | 1906 | Pittston-Brothers | Independent | , | ||
| Felix Kilduff | 1906 | +5/10-6/3 | Pittsburg/Vinita Champs | Kansas State League | , | ||
| Felix Kilduff | 1906 | +7/18-9/9 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| John Kilgore | 1906 | +7/24-10/8 | Kala.-Clarks | Independent | , | ||
| James Kilkenny | 1906 | 5/5-5/18 | Independence Coyotes | Kansas State League | , | ||
| James Kilkenny | 1906 | 5/5-5/18 | Independence Coyotes | Kansas State League | , | ||
| Henry Killeen | killee002hen | 1906 | Belle Vernon | MononVal | , | ||
| Bill Killefer | killef001wil | 1906-09 | St. Edward’s TX | College | , | ||
| Bill Killefer | killef001wil | 1906 | Paw Paw MI | Independent | , | ||
| Bill Killefer | killef001wil | 1906 | 9/23 | Kalamazoo White Sox | Southern Michigan League | , | |
| Red Killefer | killef001wad | 1906 | 5/15-9/23 | Kalamazoo White Sox | Southern Michigan League | , | |
| Frank Killen | killen002fra | 1906 | Umpire | Pennsylvania-Ohio-Maryland League | , | ||
| Frank Killen | killen002fra | 1906 | Umpire | Central League | , | ||
| Frank Killen | 1906 | 4/20-4/21 | Memphis Egyptians | Southern Association | , | ||
| Allen Killheffer | killhe000all | 1906 | Columbia College | College | , | ||
| Allen Killheffer | killhe000all | 1906 | 5/24-7/7 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Allen Killheffer | killhe000all | 1906 | 7/14-7/24 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| Allen Killheffer | killhe000all | 1906 | Summit PA | Independent | , | ||
| Allen Killheffer | killhe000all | 1906 | 9/3-9/15 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| Ed Killian | killia001edw | 1906 | 21 g. | Detroit | American League | Detroit, MI | |
| Ed Killian | killia001edw | 1906 | Chic.-Gunthers | Independent | , | ||
| John Killian | killia001joh | 1906 | 45 g. | Burlington Pathfinders | Iowa League | , | |
| Joseph Killian | killia001jos | 1906 | 116 g. | La Crosse Pinks | Wisconsin State League | , | |
| Killilay | 1906 | +4/16+ pre-s | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Harry Killilay | 1906 | 13 g. | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Harry Killilay | 1906 | +8/28-9/3+ | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| John Killilay | killil001joh | 1906 | 6/23-6/25 | Joplin Miners | Western Association | , | |
| John Killilay | killil001joh | 1906 | +7/27-9/9 | Iola Grays/Cherryvale Boosters | Kansas State League | , | |
| John Killilay | killil001joh | 1906 | 9/13-9/17 | Leavenworth Old Soldiers | Western Association | , | |
| John Killilay | killil001joh | 1906 | 27 g. | Iola Grays/Cherryvale Boosters | Kansas State League | , | |
| Charlie Kilpatrick | kilpat001cha | 1906 | Wausau Lumberjacks | Wisconsin State League | , | ||
| Charlie Kilpatrick | kilpat001cha | 1906 | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Kilroy | 1906 | 4/23 | Nashville Volunteers | Southern Association | , | ||
| Peter Kilroy | kilroy001orv | 1906 | 5/2-9/15 | Minneapolis Millers | American Association | , | |
| King | 1906 | 7/19+ | Jackson Convicts | Southern Michigan League | , | ||
| King | 1906 | 7/10-8/9 | Manning | South Carolina League | , | ||
| King | 1906 | 7/19-7/28 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Bert King | king--001ber | 1906 | 5/3-5/ | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Bert King | king--001ber | 1906 | 116 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | |
| Frank King | king--004fra | 1906 | 4/16-9/3 | Savannah Indians | South Atlantic League | , | |
| Howard King | king--003how | 1906 | 5/31-6/21+ | Jackson Convicts | Southern Michigan League | , | |
| Husky King | king--002h-- | 1906 | 4/12-9/15 | Shreveport Pirates | Southern Association | , | |
| Joe King | 1906 | +5/22+ | Indiana PA Normal | College | , | ||
| Joe King | 1906 | 6/27 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Ernest Kinkead | kinkea001--- | 1906 | 6/16 | Johnstown Johnnies | Tri-State League | , | |
| Ernest Kinkead | kinkea001--- | 1906 | 9/1-9/12 | Johnstown Johnnies | Tri-State League | , | |
| Billy Kinloch | kinloc001bil | 1906 | 15 g. | Jackson Senators | Cotton States League | , | |
| Buck Kinnoy | 1906 | Akron Rubbernecks | Ohio-Pennsylvania League | , | |||
| Buck Kinnoy | 1906 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |||
| Ed Kinsella | kinsel001edw | 1906 | 4/19-6/7 | Toledo Mud Hens | American Association | , | |
| Ed Kinsella | kinsel001edw | 1906 | 6/21-9/12 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Joseph Kipp | kipp--001jos | 1906 | +5/31-7/4 | Valdosta Stars | Georgia State League | , | |
| Joseph Kipp | kipp--001jos | 1906 | 7/9-8/18 | Orangeburg | South Carolina League | , | |
| Joseph Kipp | kipp--001jos | 1906 | 8/20-9/3 | Charleston Sea Gulls | South Atlantic League | , | |
| Joseph Kipp | kipp--001jos | 1906 | 32 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | |
| Ed Kippert | kipper002edw | 1906 | 61 g. | Calumet Aristocrats | Northern-Copper Country League | , | |
| Kirchner | 1906 | 6/27- | Fort Scott Giants | Kansas State League | , | ||
| Kirchner | 1906 | 6/26-6/29+ | Fort Scott Giants | Kansas State League | , | ||
| Judson Kirke | 1906 | 22 g. | Kingston Colonials | Hudson River League | , | ||
| Kirkland | 1906 | 5/7-5/14 | Parsons Preachers | Kansas State League | , | ||
| Kirkland | 1906 | 9/13-9/22 | Ottumwa Champs | Iowa League | , | ||
| Kirkland | 1906 | 5/7-5/14 | Parsons Preachers | Kansas State League | , | ||
| Kirkland | 1906 | +9/13-9/22+ | Ottumwa Champs | Iowa League | , | ||
| Kirkman | 1906 | +6/15-6/18+ | Albany | Georgia State League | , | ||
| William Kirwan | kirwan001wil | 1906 | +9/1+ | Bradford Drillers | Interstate League | , | |
| Rube Kisinger | kising001cha | 1906 | 4/26-9/22 | Buffalo Bisons | Eastern League | , | |
| Gary Kitchens | 1906 | Austin Senators | South Texas League | , | |||
| William Kitchens | kitche002wil | 1906 | Amarillo TX | Independent | , | ||
| William Kitchens | kitche002wil | 1906 | 8/3-8/12 | Dallas Giants | Texas League | , | |
| William Kitchens | kitche002wil | 1906 | 8/14-8/17 | Waco Navigators | Texas League | , | |
| William Kitchens | kitche002wil | 1906 | 8/23-9/1 | Fort Worth Panthers | Texas League | , | |
| Albert Kite | kite--001alb | 1906 | 8/28-9/9 | New London Whalers | Connecticut State League | , | |
| Frank Kitson | kitson001fra | 1906 | 33 g. | Washington | American League | Washington, DC | |
| Kitterman | 1906 | 4/27-5/9 | Roanoke Tigers | Virginia League | , | ||
| Malachi Kittridge | kittri001mal | 1906 | No. Carolina St. | College | , | ||
| Malachi Kittridge | kittri001mal | 1906 | 71 g. | Washington | American League | Washington, DC | |
| Malachi Kittridge | kittri001mal | 1906 | -8/8 | 10 g. | Cleveland | American League | Cleveland, OH |
| Malachi Kittridge | kittri001mal | 1906 | 8/17-9/23 | Montreal Royals | Eastern League | , | |
| Soldier Klaus | 1906 | Seattle Siwashes | Pacific Coast League | , | |||
| Butsey Kleeman | kleema001e-- | 1906 | 8/25 | San Antonio Bronchos | South Texas League | , | |
| Butsey Kleeman | kleema001e-- | 1906 | Umpire | South Texas League | , | ||
| Kline | 1906 | +6/2+ | Parsons Preachers | Kansas State League | , | ||
| George J.? Kline | 1906 | 5/28- | Bartlesville Indians | Kansas State League | , | ||
| John Kline | kline-001joh | 1906 | 4/30-6/5 | Canton Chinamen | Central League | , | |
| John Kline | kline-001joh | 1906 | 6/12-7/5 | South Bend Greens | Central League | , | |
| John Kline | kline-001joh | 1906 | 7/23-7/26 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Rudy Kling | kling-001rud | 1906 | 5/4-6/14 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Rudy Kling | kling-001rud | 1906 | 6/27-7/7 | Wichita Jobbers | Western Association | , | |
| Frank Klinkhammer | klinkh001fra | 1906 | 5/5-8/21 | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Fred Klobedanz | klobed001fre | 1906 | 5/8-9/8 | New Bedford Whalers | New England League | , | |
| George Klock | klock-001geo | 1906 | 104 g. | La Crosse Pinks | Wisconsin State League | , | |
| William Klock | klock-001wil | 1906 | Seneca Falls | Empire State League | , | ||
| Otto Knabe | knabe-001fra | 1906 | 4/18-9/16 | Toledo Mud Hens | American Association | , | |
| Cliff Knapp | 1906 | Norfolk Tars | Virginia League | , | |||
| Jack Knarr | knarr-001--- | 1906 | 10 g. | Seattle Siwashes | Pacific Coast League | , | |
| Jack Knarr | knarr-001--- | 1906 | 11 g. | Jackson Senators | Cotton States League | , | |
| Adolph Knaupp | 1906 | 8/26-8/27 | San Antonio Bronchos | South Texas League | , | ||
| Phil Knell | knell-001phi | 1906 | Sacramento Cordovas | California League | , | ||
| Punch Knoll | knoll-001cha | 1906 | 4/12-9/13 | New Orleans Pelicans | Southern Association | , | |
| Punch Knoll | knoll-001cha | 1906 | 9/16-9/25 | Evansville River Rats | Central League | , | |
| Hub Knolls | knolls001osc | 1906 | 5/1-5/6 | Brooklyn | National League | Brooklyn, NY | |
| Joe Knotts | knotts002jos | 1906 | 4/27-9/7 | Worcester Busters | New England League | , | |
| E. R. Knowlton | 1906 | 7/19-8/4 | Umpire | Connecticut State League | , | ||
| Dick Knox | knox--002ric | 1906 | Sacramento Cordovas | California League | , | ||
| Dick Knox | knox--002ric | 1906 | Stockton Millers | California League | , | ||
| George Kockill | 1906 | Albany Senators | New York State League | , | |||
| Ben Koehler | koehle001ber | 1906 | - 10/7 | 66 g. | St. Louis | American League | St. Louis, MO |
| Henry Kohler | 1906 | St.L.-WhiteSeals | Independent | , | |||
| Henry Kohler | 1906 | +6/27-9/9 | Coffeyville Bricks | Kansas State League | , | ||
| Eddie Kolb | kolb--001edd | 1906 | 16 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | |
| William Kommer | kommer000bil | 1906 | 4/29- | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| William Kommer | kommer000bil | 1906 | Wheeling Stogies | Central League | , | ||
| Ed Konetchy | konetc001edw | 1906 | 116 g. | La Crosse Pinks | Wisconsin State League | , | |
| Charles Koopman | koopma001cha | 1906 | 4/28-7/4 | Providence Grays | Eastern League | , | |
| Charles Koopman | koopma001cha | 1906 | 7/9-9/15 | Johnstown Johnnies | Tri-State League | , | |
| Kosler | 1906 | 5/17-5/18+ | Tecumseh | Southern Michigan League | , | ||
| Fred Kossuch | kossuc001fre | 1906 | +5/19+ | Detr.-Burroughs | Independent | , | |
| Joe Kostal | kostal001jos | 1906 | 24 g. | Fort Dodge Gypsumites | Iowa League | , | |
| Josef Koukalik | koukal001jos | 1906 | 5/5-6/29 | Omaha Rourkes | Western League | , | |
| Kovlesky | 1906 | 11 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| David Kraft | kraft-001dav | 1906 | 5/2-8/4 | Muskogee Indians | South Central League | , | |
| David Kraft | kraft-001dav | 1906 | 8/12 | Webb City Goldbugs | Western Association | , | |
| David Kraft | kraft-001dav | 1906 | 9/12-9/16 | Kansas City Blues | American Association | , | |
| Kramer | 1906 | 15 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | ||
| Kramer | 1906 | Saginaw | Southern Michigan League | , | |||
| Kramer | 1906 | Jackson Convicts | Southern Michigan League | , | |||
| Warren Kraner | kraner001w-- | 1906 | 5/2-5/8 | Lincoln Ducklings | Western League | , | |
| Warren Kraner | kraner001w-- | 1906 | 28 g. | Green Bay Colts | Wisconsin State League | , | |
| Warren Kraner | kraner001w-- | 1906 | 6/25-7/12 | Topeka White Sox | Western Association | , | |
| Warren Kraner | kraner001w-- | 1906 | 7/16-8/5 | Joplin Miners | Western Association | , | |
| Eugene Krapp | 1906 | +5/18-9/7+ | Tecumseh | Southern Michigan League | , | ||
| Bernard Kratzberg | 1906 | 5/7-6/14 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Bernard Kratzberg | 1906 | 7/2 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Bernard Kratzberg | 1906 | 7/ | Greeley KS | Independent | , | ||
| Charles Krebs | 1906 | VMI | College | , | |||
| Charles Krebs | 1906 | 5/1-5/21 | New Haven Blues | Connecticut State League | , | ||
| Charles Krebs | 1906 | 5/25-6/11 | Holyoke Paperweights | Connecticut State League | , | ||
| Charles Krebs | 1906 | 6/20-6/26 | Springfield Ponies | Connecticut State League | , | ||
| Ed Krebs | krebs-001edw | 1906 | 67 g. | Burlington Pathfinders | Iowa League | , | |
| Raymond Krebs | 1906 | 4/19-9/4 | Gulfport Crabs | Cotton States League | , | ||
| Charles Kremer | 1906 | +5/27-7/10 | Saginaw | Interstate Association | , | ||
| Charles Kremer | 1906 | 7/21-9/4+ | Jackson Convicts | Southern Michigan League | , | ||
| Guy Kretzer | 1906 | 5/4-6/14 | Coffeyville Bricks | Kansas State League | , | ||
| Paul Krichell | kriche001pau | 1906 | 85 g. | Hartford Senators | Connecticut State League | , | |
| Paul Krichell | kriche001pau | 1906 | 5/8-9/8 | Hartford Senators | Connecticut State League | , | |
| George Krick | krick-001geo | 1906 | 5/19-9/2 | Duluth White Sox | Northern-Copper Country League | , | |
| George Krick | krick-001geo | 1906 | 9/12-9/16 | St. Paul Saints | American Association | , | |
| George Krick | krick-001geo | 1906 | 5/19-9/2 | Duluth White Sox | Northern-Copper Country League | , | |
| George Krick | krick-001geo | 1906 | 9/4-9/6 | St. Paul Saints | American Association | , | |
| John Kroell | kroell001joh | 1906 | 5/4-5/27 | Denver Grizzlies | Western League | , | |
| Rube Kroh | kroh--001aug | 1906 | Albany Senators | New York State League | , | ||
| Rube Kroh | kroh--001aug | 1906 | 9/30 | Boston | American League | Boston, MA | |
| George Kromer | 1906 | Kaukauna WI | Independent | , | |||
| Charles Kroy | kroy--001cha | 1906 | 114 g. | Wausau Lumberjacks | Wisconsin State League | , | |
| Hugo Krueger | kreuge000p-- | 1906 | 4/26-5/23 | Providence Grays | Eastern League | , | |
| Hugo Krueger | kreuge000p-- | 1906 | 6/7-6/30 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Hugo Krueger | kreuge000p-- | 1906 | 7/23-9/6 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Otto Krueger | kruege002art | 1906 | 4/18-9/16 | Toledo Mud Hens | American Association | , | |
| William Krueger | kruege002wil | 1906 | 118 g. | Marshalltown Brownies | Iowa League | , | |
| Henry Krug | krug--001hen | 1906 | 5/10-9/22 | Scranton Miners | New York State League | , | |
| Abe Kruger | kruger001abr | 1906 | 7/23-9/15 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| Art Kruger | kruger001art | 1906 | 180 g./161 g. | Oakland Oaks | Pacific Coast League | , | |
| Art Kruger | kruger001art | 1906 | Stockton Millers | California League | , | ||
| John Krymer | 1906 | Univ. Kansas | College | , | |||
| John Krymer | 1906 | 7/13 | Leavenworth Old Soldiers | Western Association | , | ||
| Harry Kubitz | kubitz001har | 1906 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| Harry Kubitz | kubitz001har | 1906 | +7/6+ | Bay City | Interstate Association | , | |
| Louis Kuehn | 1906 | +4/30-5/19+ | South Bend Greens | Central League | , | ||
| Louis Kuehn | 1906 | +5/22-5/23+ | Dayton Veterans | Central League | , | ||
| Louis Kuehn | 1906 | Springfield Babes | Central League | , | |||
| Louis Kuehn | 1906 | +5/30-7/10 | South Bend Greens | Central League | , | ||
| Albert Kuhn | kuhn--001alb | 1906 | +6/11-9/16 | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Jimmy Kuhn | kuhn--001jam | 1906 | Lima | Interstate Association | , | ||
| Jimmy Kuhn | kuhn--001jam | 1906 | 12 g. | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| Jimmy Kuhn | kuhn--001jam | 1906 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | ||
| Charles? Kuhns | 1906 | 8/10-8/13 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| Charlie Kuhns | kuhns-001cha | 1906 | 5/30-7/14 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Arthur Kulms | 1906 | +6/10+ | Musk.-Greulichs | Independent | , | ||
| Adam Kummer | 1906 | +6/14+ | Pittsburgh College | College | , | ||
| Adam Kummer | 1906 | Monongheny PA | Independent | , | |||
| Adam Kummer | 1906 | 8/10 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Harry Kunkel | kunkel003har | 1906 | 66 g. | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Harry Kuran | kuran-001har | 1906 | , | ||||
| Frank Kurke | kurke-001fra | 1906 | 5/19-9/3 | Lake Linden Sandy Cities | Northern-Copper Country League | , | |
| Ed Kusel | kusel-001edw | 1906 | 5/1-5/2 | Sharon Steels | Ohio-Pennsylvania League | , | |
| Ed Kusel | kusel-001edw | 1906 | +8/14+ | Conneaut OH | Independent | , | |
| Joseph Kusta | 1906 | 7/4-7/20 | Wausau Lumberjacks | Wisconsin State League | , | ||
| Joseph Kustus | kustus001jos | 1906 | 4/16-9/3 | Augusta Tourists | South Atlantic League | , | |
| George LaBelle | labell001geo | 1906 | 5/17-6/ | Kalamazoo White Sox | Southern Michigan League | , | |
| George LaBelle | labell001geo | 1906 | LaPorte IN | Independent | , | ||
| George LaBelle | labell001geo | 1906 | +7/11+ | South Bend Greens | Central League | , | |
| Hank Labelle | labell001hen | 1906 | 4/27-9/6 | Lynn Shoemakers | New England League | , | |
| George LaChance | lachan001geo | 1906 | 4/26-9/20 | Providence Grays | Eastern League | , | |
| Charles Lacy | 1906 | 28 g. | Beaumont Oilers | South Texas League | , | ||
| Charles Lacy | 1906 | Lake Charles Creoles | South Texas League | , | |||
| Hi Ladd | ladd--001art | 1906 | Bridgeport Orators | Connecticut State League | , | ||
| Edward Lafitte | 1906-07 | +4/6-5/2+ | Georgia Tech | College | , | ||
| James Lafitte | 1906 | 6/12-6/22 | Darlington | South Carolina League | , | ||
| James Lafitte | 1906 | +7/25-9/5+ | Macon Brigands | South Atlantic League | , | ||
| Joe LaFrappe | 1906 | 5/6 | Independence Coyotes | Kansas State League | , | ||
| Joe LaFrappe | 1906 | 5/14-6/3 | Pittsburg/Vinita Champs | Kansas State League | , | ||
| Joe LaFrappe | 1906 | 6/4-7/4 | Pittsburg/Vinita Champs | Kansas State League | , | ||
| Joe LaFrappe | 1906 | 7/16-7/23 | Muskogee Indians | South Central League | , | ||
| Joe LaFrappe | 1906 | +7/29-8/9+ | Parsons Preachers | Kansas State League | , | ||
| Datus Lagoe | 1906 | Bay City MI | Independent | , | |||
| James Laird | laird-001jam | 1906 | 4/19-8/30 | Baton Rouge Cajuns | Cotton States League | , | |
| James Laird | laird-001jam | 1906 | 9/5 | Memphis Egyptians | Southern Association | , | |
| Frank Lakaff | lakaff001fra | 1906 | 5/3-9/14 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Fred Lake | lake--001fre | 1906 | 4/28-7/22 | Lowell Tigers | New England League | , | |
| Fred Lake | lake--001fre | 1906 | 7/23-9/8 | Lawrence Colts | New England League | , | |
| Joe Lake | lake--002jos | 1906 | Newburgh Hill Climbers | Hudson River League | , | ||
| Lally | 1906 | 20 g. | Bartlesville Indians | Kansas State League | , | ||
| Dan Lally | lally-001dan | 1906 | 4/28-6/26+ | South McAlester Miners | South Central League | , | |
| Dan Lally | lally-001dan | 1906 | 8/11-9/8 | Umpire | Virginia League | , | |
| Harry Lally | lally-001har | 1906 | 4/16-9/3 | Columbia Gamecocks | South Atlantic League | , | |
| Hugh Lally | lally-001hug | 1906 | 120 g. | Boone/Clinton Miners | Iowa League | , | |
| John Lally | 1906 | Umpire | Cotton States League | , | |||
| Lewis LaLonge | kommer000bil | 1906 | -9/29 | 39 g. | Akron Rubbernecks | Ohio-Pennsylvania League | , |
| Nick Lamar | 1906 | 6/6-7/7 | Americus Pallbearers | Georgia State League | , | ||
| Pete Lamer | lamer-001pie | 1906 | Hoboken NJ | Independent | , | ||
| Pete Lamer | lamer-001pie | 1906 | Eliz.-Invaders | Independent | , | ||
| Lamotte | 1906 | 5/3-6/2+ | Valdosta Stars | Georgia State League | , | ||
| Grover Land | land--001gro | 1906 | 4/23-9/16 | Toledo Mud Hens | American Association | , | |
| Ernest Landgraf | landgr001ern | 1906 | Portsmouth Truckers | Virginia League | , | ||
| Albert Landgraff | landgr002alb | 1906 | Meridian Ribboners | Cotton States League | , | ||
| Albert Landgraff | landgr002alb | 1906 | 16 g. | Mobile Sea Gulls | Cotton States League | , | |
| Albert Landgraff | landgr002alb | 1906 | Vicksburg Hill Billies | Cotton States League | , | ||
| Albert Landgraff | landgr002alb | 1906 | Jackson TN | Independent | , | ||
| Landis | 1906 | 8/26-9/21 | Kensington KS | Independent | , | ||
| Landis | 1906 | 8/26 | Topeka White Sox | Western Association | , | ||
| George Landreth | 1906 | 9/20-9/23 | Topeka White Sox | Western Association | , | ||
| John Landry | 1906 | 5/15-5/28+ | Jackson Convicts | Southern Michigan League | , | ||
| John Landry | 1906 | +6/21-9/23 | Battle Creek Crickets | Southern Michigan League | , | ||
| Clifford Lane | lane--001cli | 1906 | 25 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | |
| Ed Lane | lane--001ed- | 1906 | 5/8-5/9+ | Americus Pallbearers | Georgia State League | , | |
| Frank Lanen | 1906 | 9/8 | Haverhill Hustlers | New England League | , | ||
| Peter Laney | 1906 | Newark Cotton Tops | Ohio-Pennsylvania League | , | |||
| Peter Laney | 1906 | Sharon Steels | Ohio-Pennsylvania League | , | |||
| John Lang | 1906 | +8/20+ | Clev.-Hoffmans | Independent | , | ||
| Joe Langdon | 1906 | 7/15-7/20 | Umpire | New York State League | , | ||
| Joe Langdon | 1906 | 8/9-8/25 | Umpire | New England League | , | ||
| Nig Langdon | langdo001fra | 1906 | 72 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | |
| Frank Lange | lange-001fra | 1906 | 35 g. | Wausau Lumberjacks | Wisconsin State League | , | |
| John Lanham | lanham001j-- | 1906 | 4/26-8/25 | Roanoke Tigers | Virginia League | , | |
| John Lannon | 1906 | 81 g. | Green Bay Colts | Wisconsin State League | , | ||
| Tommy Lannon | 1906 | Brid.-Nationals | Independent | , | |||
| Tommy Lannon | 1906 | 7/18-8/28 | Bridgeport Orators | Connecticut State League | , | ||
| Frank LaPorte | laport002fra | 1906 | 123 g. | New York | American League | New York, NY | |
| Edward Larkin | larkin001edw | 1906 | DuBois Miners | Interstate League | , | ||
| Patrick Larkin | larkin001p-- | 1906 | Georgetown U. | College | , | ||
| Patrick Larkin | larkin001p-- | 1906 | DuBois Miners | Interstate League | , | ||
| Patrick Larkin | larkin001p-- | 1906 | Ithaca NY | Independent | , | ||
| Patrick Larkin | larkin001p-- | 1906 | Cornell Univ | College | , | ||
| Teddy Larkin | larkin001pie | 1906 | 4/26-6/21 | Holyoke Paperweights | Connecticut State League | , | |
| Sam LaRocque | larocq001sam | 1906 | 121 g. | Beaumont Oilers | South Texas League | , | |
| Benjamin Larrabee | larrab001ben | 1906 | 4/27-9/6 | Lynn Shoemakers | New England League | , | |
| Andrew Larsen | larsen004and | 1906 | 16 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| Purl LaRue | 1906 | 85 g. | Wausau Lumberjacks | Wisconsin State League | , | ||
| Arlie Latham | latham002wal | 1906 | 4/16-5/19 | Jacksonville Jays | South Atlantic League | , | |
| Arlie Latham | latham002wal | 1906 | 5/25- | Umpire | South Atlantic League | , | |
| Dick Latham | latham001ric | 1906 | 122 g. | Lake Charles Creoles | South Texas League | , | |
| Tacks Latimer | latime001cli | 1906 | 5/1-5/7 | Montreal Royals | Eastern League | , | |
| Tacks Latimer | latime001cli | 1906 | 5/21-6/4 | York Penn Parks | Tri-State League | , | |
| Tacks Latimer | latime001cli | 1906 | 6/6-7/3 | Harrisburg Senators | Tri-State League | , | |
| Tacks Latimer | latime001cli | 1906 | 7/4-7/30 | Lancaster Red Roses | Tri-State League | , | |
| Tacks Latimer | latime001cli | 1906 | 8/21-9/15 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | |
| Bill Lattimore | lattim001wil | 1906 | 4/28-8/3 | South McAlester Miners | South Central League | , | |
| Bill Lattimore | lattim001wil | 1906 | 8/14-9/23 | Webb City Goldbugs | Western Association | , | |
| Ralph Lattimore | 1906 | 31 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Michael Lattin | 1906 | +7/30+ | Balt.-B. H. & Co. | Independent | , | ||
| Jack Lauder | 1906 | 50 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | ||
| Laughlin | laughl001--- | 1906 | 5/29-7/17 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | |
| Laughlin | laughl001--- | 1906 | Martinsburg WV | Independent | , | ||
| Laughlin | 1906 | 6/2 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Eddie Laughlin | laughl000edd | 1906 | Beverly MA | Independent | , | ||
| Eddie Laughlin | laughl000edd | 1906 | +8/8-8/23+ | Montpelier-Barre | Northern Independent | , | |
| John Laughlin | laughl001joh | 1906 | 5/19-9/3 | Calumet Aristocrats | Northern-Copper Country League | , | |
| Joseph Laughlin | laughl002jos | 1906 | 5/3-6/3 | Pittsburg/Vinita Champs | Kansas State League | , | |
| Joseph Laughlin | laughl002jos | 1906 | 6/4-6/5+ | Pittsburg/Vinita Champs | Kansas State League | , | |
| Joseph Laughlin | laughl002jos | 1906 | 6/8-6/30 | Webb City Goldbugs | Western Association | , | |
| Joseph Laughlin | laughl002jos | 1906 | 7/2-9/23 | Wichita Jobbers | Western Association | , | |
| Bill Lauterborn | lauter001wil | 1906 | 5/11-9/23 | Binghamton Bingoes | New York State League | , | |
| Ed Lauzon | lauzon001edw | 1906 | 5/6- | 117 g. | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , |
| William Laval | laval-001wil | 1906 | Lynchburg Shoemakers | Virginia League | , | ||
| William Laval | laval-001wil | 1906 | 5/3-6/15 | Richmond Colts | Virginia League | , | |
| William Laval | laval-001wil | 1906 | 6/18-8/9 | Camden | South Carolina League | , | |
| William Laval | laval-001wil | 1906 | 8/13-8/18 | Charleston Sea Gulls | South Atlantic League | , | |
| Martin Lavelle | 1906 | 4/28-9/8 | Umpire | Ohio-Pennsylvania League | , | ||
| William Lavelle | 1906 | Paterson Intruders | Hudson River League | , | |||
| James Lavender | 1906 | 5/3-6/27 | Cordele | Georgia State League | , | ||
| James Lavender | 1906 | 7/6-7/12 | Camden | South Carolina League | , | ||
| James Lavender | 1906 | 7/17-8/2 | Darlington | South Carolina League | , | ||
| James Lavender | 1906 | 8/8-8/30 | Augusta Tourists | South Atlantic League | , | ||
| Frank Law | law---001fra | 1906 | 4/28-8/12 | Grays Harbor Lumbermen | Northwestern League | , | |
| Jack Law | law---001joh | 1906 | 5/18-5/20 | Nashville Volunteers | Southern Association | , | |
| Jack Law | law---001joh | 1906 | 5/22-7/20 | Gulfport Crabs | Cotton States League | , | |
| Lawler | 1906 | 5/26 | Pueblo Indians | Western League | , | ||
| Ed Lawler | lawler001ed- | 1906 | 7/23-8/5 | Omaha Rourkes | Western League | , | |
| Jack Lawler | lawler003joh | 1906 | 4/27-6/24 | Canton Chinamen | Central League | , | |
| Jack Lawler | lawler003joh | 1906 | +6/30+ | Sharon Steels | Ohio-Pennsylvania League | , | |
| Jack Lawler | lawler003joh | 1906 | 7/9-7/13 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Jack Lawler | lawler003joh | 1906 | +7/18+ | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| John Lawler | lawler001joh | 1906 | +5/31+ | Huntsville Elks | Independent | , | |
| Jack Lawlor | lawlor001joh | 1906 | 5/11-9/6 | Utica Pent-Ups | New York State League | , | |
| Andy Lawrence | lawren001and | 1906 | 4/26-8/9 | Holyoke Paperweights | Connecticut State League | , | |
| Mike Lawrence | lawren001mic | 1906 | 5/3-5/9+ | Umpire | Illinois-Indiana-Iowa League | , | |
| Mike Lawrence | lawren001mic | 1906 | +6/1-6/3+ | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Mike Lawrence | lawren001mic | 1906 | Umpire | Illinois-Indiana-Iowa League | , | ||
| Mike Lawrence | lawren001mic | 1906 | Galina IL | Independent | , | ||
| Al Lawson | lawson001al- | 1906 | Oil City-Jamestown Oseejays | Interstate League | , | ||
| Bob Lawson | lawson003rob | 1906 | 1 g.? | Richmond Colts | Virginia League | , | |
| Bob Lawson | lawson003rob | 1906 | +6/16+ | Stroudsburg | Blue Mountain League | , | |
| Jack Lawson | 1906 | NHav-Westville | Independent | , | |||
| Jack Lawson | 1906 | 7/27-9/1 | New Haven Blues | Connecticut State League | , | ||
| Joe Lawtner | lawtne001jos | 1906 | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| Leach | 1906 | +6/1-6/2+ | Valdosta Stars | Georgia State League | , | ||
| Benjamin Leach | 1906 | +7/3+ | Stevensville MT | Independent | , | ||
| Hugh Leach | leach-001hug | 1906 | 5/19-9/3 | Winnipeg Maroons | Northern-Copper Country League | , | |
| Samuel Leach | leach-000sam | 1906 | +7/3+ | Stevensville MT | Independent | , | |
| Thomas Leahy | leahy-005tho | 1906 | 5/19-8/2 | Calumet Aristocrats | Northern-Copper Country League | , | |
| Tom Leahy | leahy-002tho | 1906 | 4/24-9/16 | Kansas City Blues | American Association | , | |
| Joe Leake | leake-000joe | 1906 | Univ. Col. of Medicine | College | , | ||
| William Leard | 1906 | Glens Falls-Saratoga Springs | Hudson River League | , | |||
| William Leard | 1906 | 348 ab | Hudson Marines | Hudson River League | , | ||
| Frank Leary | leary-001fra | 1906 | 4/25-9/15 | Harrisburg Senators | Tri-State League | , | |
| Austin LeBrand | lebran001aus | 1906 | Globe AZ | Independent | , | ||
| George Ledue | 1906 | 5/21-5/25+ | Umpire | New England League | , | ||
| Allen Lee | lee---003all | 1906 | Olean Refiners | Interstate League | , | ||
| Carl Lee | lee---001car | 1906 | 5/1-6/4 | Fall River Indians | New England League | , | |
| Carl Lee | lee---001car | 1906 | Fitchburg MA | Independent | , | ||
| Eddie Lee | 1906 | 5/24-7/2 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| George Lee | lee---001geo | 1906 | 4/30-9/7 | Lawrence Colts | New England League | , | |
| Jack Lee | lee---003joh | 1906 | 4/18-9/15 | Shreveport Pirates | Southern Association | , | |
| Wyatt Lee | lee---001wya | 1906 | 4/25-8/23 | Altoona Mountaineers | Tri-State League | , | |
| Wyatt Lee | lee---001wya | 1906 | 8/24-9/13 | Williamsport Millionaires | Tri-State League | , | |
| Leftwich | leftwi001--- | 1906 | 5/1-5/15 | Guthrie Senators | South Central League | , | |
| Leftwich | leftwi001--- | 1906 | 6/2- | Fort Scott Giants | Kansas State League | , | |
| Bill LeGrande | legran001w-- | 1906 | +3/17+ | Bingham School | Academy | , | |
| Bill LeGrande | legran001w-- | 1906 | no g. | Augusta Tourists | South Atlantic League | , | |
| Bill LeGrande | legran001w-- | 1906 | +6/16-8/18+ | Stroudsburg | Blue Mountain League | , | |
| Bill LeGrande | legran001w-- | 1906 | 9/7-9/8 | Lynchburg Shoemakers | Virginia League | , | |
| George Lehr | 1906 | 5/3-6/1 | Chanute Browns | Kansas State League | , | ||
| George Lehr | 1906 | +8/6+ | Pitt.-Frontenac | Independent | , | ||
| Clarence Leicht | 1906 | 9 g. | Waco Navigators | Texas League | , | ||
| George Leidy | leidy-002geo | 1906 | 109 g. | Mobile Sea Gulls | Cotton States League | , | |
| Lefty Leifield | leifie001alb | 1906 | 37 g. | Pittsburgh | National League | Pittsburgh, PA | |
| Jim Leighton | leight001jam | 1906 | +6/11-6/28+ | Vicksburg Hill Billies | Cotton States League | , | |
| James Leighty | leight002jam | 1906 | 5/19-7/28 | Grand Forks Forkers | Northern-Copper Country League | , | |
| James Leighty | leight002jam | 1906 | +8/5-9/3 | Duluth White Sox | Northern-Copper Country League | , | |
| Bill Leith | leith-001bil | 1906 | 4/28-9/6 | Lawrence Colts | New England League | , | |
| Harry Leitman | leitma001har | 1906 | 8/9 | Oshkosh Indians | Wisconsin State League | , | |
| George Leitner | leitne001geo | 1906 | 4/20-6/5 | Baton Rouge Cajuns | Cotton States League | , | |
| George Leitner | leitne001geo | 1906 | 6/6 | Jackson Senators | Cotton States League | , | |
| Sheldon Lejeune | lejeun001she | 1906 | +6/24+ | Chic.-Artesians | Independent | , | |
| Sheldon Lejeune | lejeun001she | 1906 | +10/20+ | Chic.-Gunthers | Independent | , | |
| Bill Lelivelt | lelive001wil | 1906 | 5/4-9/15 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| John Lelivelt | 1906 | 5/19-9/3 | Lake Linden Sandy Cities | Northern-Copper Country League | , | ||
| H. W. LeLorme | 1906 | Austin Senators | South Texas League | , | |||
| Lee Lemon | lemon-001lee | 1906 | 5/4-7/5 | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Lee Lemon | lemon-001lee | 1906 | 7/25-8/11 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Carl Lempke | lempke001car | 1906 | 22 g. | Fresno Raisin Eaters | Pacific Coast League | , | |
| Patrick Lennon | lennon001pat | 1906 | 5/19-5/25 | Albany Senators | New York State League | , | |
| Ed Lennox | lennox001jam | 1906 | 4/25-8/6 | Lancaster Red Roses | Tri-State League | , | |
| Ed Lennox | lennox001jam | 1906 | 8/8- | 6 g. | Philadelphia | American League | Philadelphia, PA |
| Ed Lennox | lennox001jam | 1906 | 8/22-9/19 | Rochester Bronchos | Eastern League | , | |
| Walter Lent | lent--002--- | 1906 | at Harrisburg | Army | , | ||
| Leonard | 1906 | 6/26-6/28 | Fall River Indians | New England League | , | ||
| Leonard | 1906 | Hudson River League | , | ||||
| Charles Leonard | leonar006cha | 1906 | Milwaukee Brewers | American Association | , | ||
| Charles Leonard | leonar006cha | 1906 | Hibbling MN | Independent | , | ||
| Frank Leonard | leonar001fra | 1906 | 4/27-9/8 | Lynn Shoemakers | New England League | , | |
| John Leonard | leonar001joh | 1906 | 4/26-8/17 | Norfolk Tars | Virginia League | , | |
| William Leonard | leonar011--- | 1906 | no g. | Toronto Maple Leafs | Eastern League | , | |
| William Leonard | 1906 | Dartmouth Col | College | , | |||
| William Leonard | 1906 | 6/30-7/3 | Syracuse Stars | New York State League | , | ||
| Pete LePine | lepine002lou | 1906 | 4/27-5/2 | Lancaster Red Roses | Tri-State League | , | |
| Pete LePine | lepine002lou | 1906 | 5/11-9/8 | Holyoke Paperweights | Connecticut State League | , | |
| Frederick Lepper | lepper001fre | 1906 | 6/2-7/13 | Lawrence Colts | New England League | , | |
| Charles LeRoi | leroi-001cha | 1906 | 5/4-5/18 | Leavenworth Old Soldiers | Western Association | , | |
| Louis LeRoy | leroy-001lou | 1906 | 11 g. | New York | American League | New York, NY | |
| Louis LeRoy | leroy-001lou | 1906 | 6/23-9/19 | Montreal Royals | Eastern League | , | |
| Tom Letcher | letche001tom | 1906 | 4/27-9/1 | Evansville River Rats | Central League | , | |
| Tom Letcher | letche001tom | 1906 | +9/18-9/20 | Terre Haute Hottentots | Central League | , | |
| Albert Leverich | 1906 | +4/29-7/1+ | RockIsl-Indep | Independent | , | ||
| Albert Leverich | 1906 | +8/14+ | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| William Leverich | 1906 | +8/27+ | RockIsl-Indep | Independent | , | ||
| Walter Levings | 1906 | 18 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | ||
| Levy | 1906 | 7/4-8/10 | Bridgeport Orators | Connecticut State League | , | ||
| Ed Lewee | lewee-001edw | 1906 | 5/3-9/16 | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Mort Lewinson | 1906 | 5/4-7/12 | Umpire | Western Association | , | ||
| Lewis | 1906 | New Castle Outlaws | Ohio-Pennsylvania League | , | |||
| A. Lewis | 1906 | 5/10-6/15 | Grays Harbor Lumbermen | Northwestern League | , | ||
| Cal Lewis | lewis-001cal | 1906 | 5/29 | Cleburne Railroaders | Texas League | , | |
| Cal Lewis | lewis-001cal | 1906 | Amarillo TX | Independent | , | ||
| Carl Lewis | lewis-001car | 1906 | 5/4-9/23 | Oklahoma City Mets | Western Association | , | |
| Dan Lewis | 1906 | Oil City-Jamestown Oseejays | Interstate League | , | |||
| Dudley Lewis | 1906 | 5/5-6/18+ | Columbus/Brunswick River Snipes | Georgia State League | , | ||
| Dudley Lewis | 1906 | 7/17-8/11 | Manning | South Carolina League | , | ||
| Dudley Lewis | 1906 | 8/13-8/18 | Darlington | South Carolina League | , | ||
| Earl Lewis | lewis-001ear | 1906 | 4/16-5/5 | Charleston Sea Gulls | South Atlantic League | , | |
| Earl Lewis | lewis-001ear | 1906 | 5/28-9/3 | Savannah Indians | South Atlantic League | , | |
| Frank Lewis | 1906 | 4/30-5/31 | Manchester Textiles | New England League | , | ||
| Gordon Lewis | lewis-001gor | 1906 | 47 g. | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Gordon Lewis | lewis-001gor | 1906 | Decatur Commodores | Illinois-Indiana-Iowa League | , | ||
| Gordon Lewis | lewis-001gor | 1906 | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| Joseph Lewis | 1906 | Kane Mountaineers | Interstate League | , | |||
| Phil Lewis | lewis-001phi | 1906 | 136 g. | Brooklyn | National League | Brooklyn, NY | |
| Walter Lewis | 1906 | Baker University | College | , | |||
| Walter Lewis | 1906 | 47 g. | Chanute Browns | Kansas State League | , | ||
| Glenn Liebhardt | liebha002gle | 1906 | 4/14-9/15 | Memphis Egyptians | Southern Association | , | |
| Glenn Liebhardt | liebha002gle | 1906 | 2 g. | Cleveland | American League | Cleveland, OH | |
| Amos Liebole | 1906 | 2 g. | Sharon Steels | Ohio-Pennsylvania League | , | ||
| William Lillis | lillis001wil | 1906 | +5/11+ | 8 g. | Newark Cotton Tops | Ohio-Pennsylvania League | , |
| William Lillis | lillis001wil | 1906 | +5/27-9/23 | Mount Clemens Bathers | Southern Michigan League | , | |
| James Limric | limric001jam | 1906 | 4/30-7/9 | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| James Limric | limric001jam | 1906 | 7/14-9/28 | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Vive Lindaman | lindam001viv | 1906 | 4/14- | 39 g. | Boston | National League | Boston, MA |
| Robert Lindamann | 1906 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |||
| Bob Lindemann | lindem002joh | 1906 | 4/28-6/25 | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Bob Lindemann | lindem002joh | 1906 | 7/27-9/15 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Albert Linderbeck | linder001alb | 1906 | 5/3-7/1+ | Lima | Interstate Association | , | |
| Albert Linderbeck | linder001alb | 1906 | South Bend Greens | Central League | , | ||
| Albert Linderbeck | linder001alb | 1906 | +6/21-6/23+ | South Bend Greens | Central League | , | |
| Howard Lindley | lindle001how | 1906 | 5/3-6/ | Independence Coyotes | Kansas State League | , | |
| Howard Lindley | lindle001how | 1906 | +9/26+ | Weir City Browns | Independent | , | |
| Lindsay | 1906 | 8/2 | Montreal Royals | Eastern League | , | ||
| Charles Lindsay | 1906 | Beaver Falls | Western Pennsylvania | , | |||
| Chris Lindsay | lindsa001chr | 1906 | -10/7 | 141 g. | Detroit | American League | Detroit, MI |
| Dave Lindsay | 1906 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |||
| Frank Lindsay | 1906 | New Castle Outlaws | Ohio-Pennsylvania League | , | |||
| Harry Lindsay | lindsa001ira | 1906 | 5/3-5/13 | Pueblo Indians | Western League | , | |
| Harry Lindsay | lindsa001ira | 1906 | 5/23-6/14 | Sioux City Packers | Western League | , | |
| Harry Lindsay | lindsa001ira | 1906 | 7/2-8/14 | Sharon Steels | Ohio-Pennsylvania League | , | |
| Harry Lindsay | lindsa001ira | 1906 | 8/19-9/28 | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| John Lindsay | lindsa002joh | 1906 | 4/27-9/25 | Canton Chinamen | Central League | , | |
| William Lindsay | 1906 | Greensboro | , | ||||
| Harry Lindsey | lindsa001ira | 1906 | 5/3-5/13 | Pueblo Indians | Western League | , | |
| Harry Lindsey | lindsa001ira | 1906 | 5/23-6/14 | Sioux City Packers | Western League | , | |
| Harry Lindsey | lindsa001ira | 1906 | Sharon Steels | Ohio-Pennsylvania League | , | ||
| William Ling | 1906 | Booneville IN | Independent | , | |||
| William Ling | 1906 | Owensboro | Kentucky-Illinois-Tennessee League | , | |||
| William Ling | 1906 | 9/20 | Evansville River Rats | Central League | , | ||
| Frederick Link | 1906 | 39 g. | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Roy Linn | linn--000roy | 1906 | 5/21 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| John Linstedt | 1906 | 6/12-8/6 | Camden | South Carolina League | , | ||
| John Linstedt | 1906 | 7/21 | Charleston Sea Gulls | South Atlantic League | , | ||
| Perry Lipe | lipe--001per | 1906 | 4/16-9/3 | Macon Brigands | South Atlantic League | , | |
| Tom Lipp | lipp--001tom | 1906 | 4/17-5/14 | Savannah Indians | South Atlantic League | , | |
| Louis Lippert | lipper001lou | 1906 | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| Louis Lippert | lipper001lou | 1906 | Chic.-Logan Squares | Chicago City League | , | ||
| William List | 1906 | 7/14-9/28 | Umpire | Ohio-Pennsylvania League | , | ||
| Pete Lister | lister001mor | 1906 | Portland Beavers | Pacific Coast League | , | ||
| Louis Litschi | 1906 | no g. | Holyoke Paperweights | Connecticut State League | , | ||
| Louis Litschi | 1906 | Kane Mountaineers | Interstate League | , | |||
| Daniel Littlepage | 1906 | Birm.-Southern | College | , | |||
| Henry Lively | lively001hen | 1906 | 4/21-5/16 | Gulfport Crabs | Cotton States League | , | |
| Henry Lively | lively001hen | 1906 | 7/21-9/4 | Gulfport Crabs | Cotton States League | , | |
| Charles Livingston | 1906 | Wausau Lumberjacks | Wisconsin State League | , | |||
| Ed Livingston | 1906 | 78 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| Lowell Livingston | living002l-- | 1906 | 5/19-7/29+ | Duluth White Sox | Northern-Copper Country League | , | |
| Lowell Livingston | living002l-- | 1906 | Lake Linden Sandy Cities | Northern-Copper Country League | , | ||
| Paddy Livingston | living001pat | 1906 | 50 g. | Cincinnati | National League | Cincinnati, OH | |
| Abel Lizotte | lizott001abe | 1906 | 5/10-5/21 | Albany Senators | New York State League | , | |
| Abel Lizotte | lizott001abe | 1906 | 5/29-6/8 | Syracuse Stars | New York State League | , | |
| Abel Lizotte | lizott001abe | 1906 | 71 g. | Mansfield Giants | Ohio-Pennsylvania League | , | |
| Arthur Lizzette | lizzet001art | 1906 | +5/19-8/22+ | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Lloyd | lloyd-001dav | 1906 | 5/6 | Evansville River Rats | Central League | , | |
| David LLoyd | lloyd-001dav | 1906 | 5/24-9/15 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| Harry Lloyd | lloyd-002har | 1906 | 108 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| Horace Loats | loats-001hor | 1906 | Erie Sailors | Interstate League | , | ||
| Lobert | 1906 | 8/6 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Hans Lobert | lobert001joh | 1906 | 79 g. | Cincinnati | National League | Cincinnati, OH | |
| Lochray | 1906 | 6/15 | Spokane Indians | Northwestern League | , | ||
| Frank Locke | locke-001fra | 1906 | no g. | Wheeling Stogies | Central League | , | |
| Frank Locke | locke-001fra | 1906 | 64 g. | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Joseph Locke | 1906 | 5/1 | Lancaster Lanks | Ohio-Pennsylvania League | , | ||
| Joseph Locke | 1906 | 6/2-8/24 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Jacob Loebs | 1906 | 10 g. | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Frank Loehner | loehne000fra | 1906 | Bonner MT | Independent | , | ||
| Loftin | 1906 | 2 g. | Jackson Senators | Cotton States League | , | ||
| Frank Lofton | lofton001fra | 1906 | 5/4-9/23 | Oklahoma City Mets | Western Association | , | |
| Frank Logan | logan-001f-- | 1906 | 19 g. | Lake Charles Creoles | South Texas League | , | |
| Tom Logan | logan-001tho | 1906 | 4/16-9/3 | Savannah Indians | South Atlantic League | , | |
| Pete Lohman | lohman001geo | 1906 | Fresno Raisin Eaters | Pacific Coast League | , | ||
| Frank Lohr | lohr--001fra | 1906 | 4/18-9/3 | Charleston Sea Gulls | South Atlantic League | , | |
| Joseph Lohr | 1906 | 64 g. | Portsmouth Truckers | Virginia League | , | ||
| Roy Loman | loman-001roy | 1906 | Atchinson Ks | Independent | , | ||
| Roy Loman | loman-001roy | 1906 | Wichita Jobbers | Western Association | , | ||
| Long | 1906 | Parsons Preachers | Kansas State League | , | |||
| Charles Long | 1906 | 4/27-9/5 | Richmond Colts | Virginia League | , | ||
| Ed Long | 1906 | New Castle Outlaws | Ohio-Pennsylvania League | , | |||
| Frank Long | long--002fra | 1906 | 134 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| Harry Long | long--003har | 1906 | 4/26-9/8 | New London Whalers | Connecticut State League | , | |
| Herman Long | long--001her | 1906 | 4/26-5/25 | Toronto Maple Leafs | Eastern League | , | |
| Herman Long | long--001her | 1906 | 6/4-9/22 | Omaha Rourkes | Western League | , | |
| James Long | long--001art | 1906 | 4/16-5/31+ | Macon Brigands | South Atlantic League | , | |
| James Long | long--001art | 1906 | +6/8-9/3 | Jacksonville Jays | South Atlantic League | , | |
| James Long | long--006jam | 1906 | 4/28-5/3 | San Antonio Bronchos | South Texas League | , | |
| James Long | long--006jam | 1906 | 5/11-8/7+ | Parsons Preachers | Kansas State League | , | |
| Red Long | long--001nel | 1906 | 5/17-6/24 | Evansville River Rats | Central League | , | |
| Red Long | long--001nel | 1906 | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| Red Long | long--001nel | 1906 | Franklin PA | Independent | , | ||
| Red Long | long--001nel | 1906 | Umpire | Ohio-Pennsylvania League | , | ||
| George Longley | 1906 | Sub Umpire | American Association | , | |||
| George Longley | 1906 | Umpire | Ohio-Pennsylvania League | , | |||
| Harry Longley | longle001har | 1906 | 126 g. | Galveston Sand Crabs | South Texas League | , | |
| Sam Longley | 1906 | 7/3-7/19 | Umpire | American Association | , | ||
| Sam? Longley | 1906 | 5/25-6/10 | Umpire | Western Association | , | ||
| Pete Loos | loos--001iva | 1906 | 4/16-4/25 | Jacksonville Jays | South Atlantic League | , | |
| Pete Loos | loos--001iva | 1906 | 4/28-5/17+ | Savannah Indians | South Atlantic League | , | |
| Bris Lord | lord--001bri | 1906 | Philadelphia | American League | Philadelphia, PA | ||
| Harry Lord | lord--001har | 1906 | 5/4-9/7 | Worcester Busters | New England League | , | |
| William Lord | lord--001wil | 1906 | 4/26-9/8 | Norwich Reds | Connecticut State League | , | |
| Manfred Lothrop | 1906 | 5/3-5/10 | Holyoke Paperweights | Connecticut State League | , | ||
| Andrew Lotshaw | 1906 | 127 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| Sylvester Loucks | loucks001syl | 1906 | 2 g. | Seattle Siwashes | Pacific Coast League | , | |
| Sylvester Loucks | loucks001syl | 1906 | 5/8-6/7 | Atlanta Crackers | Southern Association | , | |
| Sylvester Loucks | loucks001syl | 1906 | 6/16-9/13 | Memphis Egyptians | Southern Association | , | |
| William Louden | louden001wil | 1906 | 4/25-6/30 | Greenville Hunters | Texas League | , | |
| William Louden | louden001wil | 1906 | 7/1-9/3 | Dallas Giants | Texas League | , | |
| William Louden | louden001wil | 1906 | 9/11-9/15 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | |
| Charlie Loudenslager | louden001cha | 1906 | 4/26-9/22 | Rochester Bronchos | Eastern League | , | |
| Jackson Love | love--001jac | 1906 | Hot Springs ARK | Independent | , | ||
| James Love | love--002jam | 1906 | Bellevernon PA | Independent | , | ||
| William Love | love--001bil | 1906 | 6/20 | U. Roch. Alumni | Independent | , | |
| William Love | love--001bil | 1906 | +7/4+ | All Rochesters | Independent | , | |
| W. W. Lovelace | 1906 | 5/3+ | Albany | Georgia State League | , | ||
| Clarence Lovell | lovell001cla | 1906 | 4/27-9/8 | Lynn Shoemakers | New England League | , | |
| Bobby Lovely | lovely001rob | 1906 | Oswego | Empire State League | , | ||
| Raymond Lovett | 1906 | Chic.- | Amateur | , | |||
| Thomas Lovett | lovett001tho | 1906 | 5/19-7/17 | Duluth White Sox | Northern-Copper Country League | , | |
| Thomas Lovett | lovett001tho | 1906 | +8/5+ | Lake Linden Sandy Cities | Northern-Copper Country League | , | |
| George Lowell | lowell001geo | 1906 | 6/3-7/21+ | Muskogee Indians | South Central League | , | |
| John Lower | lower-001joh | 1906 | 5/7-5/31+ | Dallas Giants | Texas League | , | |
| John Lower | lower-001joh | 1906 | +6/12-6/27 | Waco Navigators | Texas League | , | |
| John Lower | lower-001joh | 1906 | Wichita Falls | Independent | , | ||
| John Lower | lower-001joh | 1906 | +8/6+ | Gainesville TX | Independent | , | |
| John Lower | lower-001joh | 1906 | 9/12 | Lancaster Red Roses | Tri-State League | , | |
| Robert Loxson | noxon-001--- | 1906 | +6/-7/14+ | Pawtucket RI | Independent | , | |
| Robert Loxson | noxon-001--- | 1906 | 8/7-8/21 | Bridgeport Orators | Connecticut State League | , | |
| Bill Luby | luby--001wil | 1906 | 5/1-9/8 | Springfield Ponies | Connecticut State League | , | |
| James Lucas | lucas-001jam | 1906 | 61 g. | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| William Lucas | lucas-005wil | 1906 | President | Northwestern League | , | ||
| Fred Luchia | lucia-001fre | 1906 | 4/30-6/7 | Lancaster Red Roses | Tri-State League | , | |
| Fred Luchia | lucia-001fre | 1906 | 6/8-7/7 | Johnstown Johnnies | Tri-State League | , | |
| Fred Luchia | lucia-001fre | 1906 | 7/9-8/20 | Harrisburg Senators | Tri-State League | , | |
| Fred Luchia | lucia-001fre | 1906 | 8/24-9/15 | Lancaster Red Roses | Tri-State League | , | |
| Con Lucid | lucid-001con | 1906 | 5/1-5/19 | Temple Boll Weevils | Texas League | , | |
| Con Lucid | lucid-001con | 1906 | 5/29 | Waco Navigators | Texas League | , | |
| Frederick Luderus | luderu001fre | 1906 | 5/19-7/28 | Grand Forks Forkers | Northern-Copper Country League | , | |
| Frederick Luderus | luderu001fre | 1906 | 7/30-9/3 | Winnipeg Maroons | Northern-Copper Country League | , | |
| Bernard Ludes | 1906 | KS Weslehan | College | , | |||
| Bernard Ludes | 1906 | Salina-Bankers | Independent | , | |||
| Arthur Ludwig | ludwig001art | 1906 | 5/19-6/2 | Calumet Aristocrats | Northern-Copper Country League | , | |
| Arthur Ludwig | ludwig001art | 1906 | 6/4-7/9+ | Grand Forks Forkers | Northern-Copper Country League | , | |
| Bill Ludwig | ludwig002wil | 1906 | 5/3-9/16 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| William Ludwig | 1906 | 4 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| William Ludwig | 1906 | Cinc.-Eagles | Independent | , | |||
| Herman Luettke | luettk001her | 1906 | 5/25- | Independence Coyotes | Kansas State League | , | |
| Jack Lundbom | lundbo001joh | 1906 | 4/30-8/3 | Evansville River Rats | Central League | , | |
| Billy Lush | lush--001wil | 1906 | Yale Univ. | College | , | ||
| Billy Lush | lush--001wil | 1906 | 6/23-7/ | Plattsburgh | Northern Independent League | , | |
| Billy Lush | lush--001wil | 1906 | Rockville CT | Independent | , | ||
| Johnny Lush | lush--001joh | 1906 | 76 g. | Philadelphia | National League | Philadelphia, PA | |
| Charlie Luskey | luskey001cha | 1906 | 5/10-8/24 | Scranton Miners | New York State League | , | |
| William Luyster | luyste001wil | 1906 | 4/26-8/18 | Hartford Senators | Connecticut State League | , | |
| Frank Lyman | lyman-000fra | 1906 | +7/4+ | Kent OH | Independent | , | |
| Frank Lyman | lyman-000fra | 1906 | 8/19 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Lynch | 1906 | Montreal Royals | Eastern League | , | |||
| Bobby Lynch | lynch-006rob | 1906 | Chic.-Logan Square | Independent | , | ||
| Edward Lynch | lynch-004edw | 1906 | Niagara Univ. | College | , | ||
| Edward Lynch | lynch-004edw | 1906 | Poughkeepsie Colts | Hudson River League | , | ||
| Edward Lynch | lynch-004edw | 1906 | 6/15 | Montreal Royals | Eastern League | , | |
| Joseph Lynch | lynch-001jos | 1906 | 5/19-6/29+ | Lake Linden Sandy Cities | Northern-Copper Country League | , | |
| Joseph Lynch | lynch-001jos | 1906 | +7/10-8/26 | Duluth White Sox | Northern-Copper Country League | , | |
| Michael Lynch | lynch-002mik | 1906 | 5/24-9/11 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | |
| Mike Lynch | lynch-003mic | 1906 | 4/28-9/3 | Tacoma Tigers | Northwestern League | , | |
| Mike Lynch | lynch-004mic | 1906 | 18 g. | Pittsburgh | National League | Pittsburgh, PA | |
| Patrick Lynch | lynch-002pat | 1906 | 8/8-8/31 | Umpire | Western League | , | |
| Robert Lynch | 1906 | bef 7/30 | Terre Haute Hottentots | Central League | , | ||
| W. H. Lynch | 1906 | Iola Grays/Cherryvale Boosters | Kansas State League | , | |||
| W. H. Lynch | 1906 | 5/3-6/27 | Coffeyville Bricks | Kansas State League | , | ||
| W. H. Lynch | 1906 | 7/3- | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Teddy Lynn | 1906 | +5/24+ | Guthrie Senators | South Central League | , | ||
| Lyons | 1906 | 5/21-8/1 | Tulsa Oilers | South Central League | , | ||
| Lyons | 1906 | 57 g. | Parsons Preachers | Kansas State League | , | ||
| Lyons | 1906 | Holyoke Paperweights | Connecticut State League | , | |||
| Denny Lyons | lyons-002den | 1906 | Lake Charles Creoles | South Texas League | , | ||
| Peter Lyons | 1906 | 20 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Peter Lyons | 1906 | Gulfport Crabs | Cotton States League | , | |||
| Sullivan Lyons | lyons-001sul | 1906 | Kansas U. Med | College | , | ||
| Sullivan Lyons | lyons-001sul | 1906 | 5/6-5/30 | Wichita Jobbers | Western Association | , | |
| Sullivan Lyons | lyons-001sul | 1906 | 6/10+ | Parsons Preachers | Kansas State League | , | |
| Theodore Lyons | 1906 | preseason | Wichita Jobbers | Western Association | , | ||
| Theodore Lyons | 1906 | 5/4-5/14 | Springfield Midgets | Western Association | , | ||
| Blake Lytle | 1906 | 5/31-6/16 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Charles Maag | maag--001c-- | 1906 | 4/25-6/30 | Greenville Hunters | Texas League | , | |
| Charles Maag | maag--001c-- | 1906 | 7/1-9/3 | Dallas Giants | Texas League | , | |
| Charles Maag | maag--001c-- | 1906 | -9/29 | Mansfield Giants | Ohio-Pennsylvania League | , | |
| George Mabry | 1906 | 6/11-8/11 | Camden | South Carolina League | , | ||
| Harry Mace | mace--002har | 1906 | 4/16-9/3 | Umpire | South Atlantic League | , | |
| Ed MacGamwell | mcgamw002edw | 1906 | 5/19-9/23 | Utica Pent-Ups | New York State League | , | |
| Arthur MacGregor | 1906 | 43 g. | Fresno Raisin Eaters | Pacific Coast League | , | ||
| Frank MacHale | mchale001fra | 1906 | Wash. & Jeff. | College | , | ||
| Frank MacHale | mchale001fra | 1906 | 5/30-9/15 | Washington | Pennsylvania-Ohio-Maryland League | , | |
| Walter Macholz | 1906 | 8/16-9/3 | Spokane Indians | Northwestern League | , | ||
| Thomas MacIntyre | 1906 | 83 ab | Hudson Marines | Hudson River League | , | ||
| Mack | 1906 | 5/30 | York Penn Parks | Tri-State League | , | ||
| Archie Mack | 1906 | 4/9- | KS Weslyan Univ | College | , | ||
| Archie Mack | 1906 | Salina-Lee | Independent | , | |||
| Roy Mack | 1906 | 4/9- | KS Weslyan Univ | College | , | ||
| Roy Mack | 1906 | Salina-Lee | Independent | , | |||
| William Mack | mack--003wil | 1906 | Elmira NY | Independent | , | ||
| MacKenzie | 1906 | Umpire | Western Association | , | |||
| Mackey | 1906 | Yale Univ | College | , | |||
| Mackey | 1906 | Plattsburgh | Northern Independent League | , | |||
| Billy Mackey | mackey003wil | 1906 | Umpire | Hudson River League | , | ||
| Ed Mackey | mackey001a-- | 1906 | Umpire | South Texas League | , | ||
| Ed Mackey | mackey001a-- | 1906 | 5/17-6/10 | Umpire | Cotton States League | , | |
| Robert Mackey | mackey001rob | 1906 | 87 g. | Fort Dodge Gypsumites | Iowa League | , | |
| William Mackey | 1906 | Oswego | Empire State League | , | |||
| Robert MacLatchie | mclatc001rob | 1906 | 37 g. | Mansfield Giants | Ohio-Pennsylvania League | , | |
| Robert MacLatchie | mclatc001rob | 1906 | Pottstown PA | Independent | , | ||
| Henry MacMurdo | 1906 | 5 g. | Seattle Siwashes | Pacific Coast League | , | ||
| Bunny Madden | madden001tho | 1906 | 5/26-9/7 | Lynn Shoemakers | New England League | , | |
| Tommy Madden | madden003tho | 1906 | 4/27-9/8 | Haverhill Hustlers | New England League | , | |
| Tommy Madden | madden003tho | 1906 | 9/10- | 4 g. | Boston | National League | Boston, MA |
| Nick Maddox | maddox001nic | 1906 | 4/28-5/3 | Providence Grays | Eastern League | , | |
| Nick Maddox | maddox001nic | 1906 | 5/25-9/15 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | |
| William Maddox | 1906 | Texarkana Shine-Oners | Arkansas-Texas League | , | |||
| William Maddox | 1906 | 9/5-9/29 | Lincoln Ducklings | Western League | , | ||
| Michael Madigan | 1906 | Kane Mountaineers | Interstate League | , | |||
| Art Madison | madiso002art | 1906 | 5/10-6/22 | Utica Pent-Ups | New York State League | , | |
| Oscar Madson/Madi | 1906 | 8 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Magee | 1906 | +6/24+ | 8 g. | Meridian Ribboners | Cotton States League | , | |
| Bill Magee | magee-001wil | 1906 | 5/17-8/19 | Wilkes-Barre Barons | New York State League | , | |
| James Magee | 1906 | 5/10-9/22 | Wilkes-Barre Barons | New York State League | , | ||
| Leo Magee | 1906 | Meridian Ribboners | Cotton States League | , | |||
| Harl Maggert | magger001har | 1906 | 11 g. | Sharon Steels | Ohio-Pennsylvania League | , | |
| Harl Maggert | magger001har | 1906 | Fort Wayne | Interstate Association | , | ||
| Jake Magie | magie-001jac | 1906 | 4/25-5/19 | Johnstown Johnnies | Tri-State League | , | |
| Jake Magie | magie-001jac | 1906 | 5/29-9/23 | Wilkes-Barre Barons | New York State League | , | |
| George Magoon | magoon001geo | 1906 | 5/2-9/30 | Des Moines Champs | Western League | , | |
| A. A. Mahaffey | 1906 | no g. | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Jack Mahaffey | mahaff001joh | 1906 | 5/19-6/13 | Binghamton Bingoes | New York State League | , | |
| Jack Mahaffey | mahaff001joh | 1906 | 6/29 | Columbus Senators | American Association | , | |
| Jack Mahaffey | mahaff001joh | 1906 | Marion | Interstate Association | , | ||
| Jack Mahaffey | mahaff001joh | 1906 | 7/24-7/30 | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Tom Maher | maher-001tho | 1906 | 4/27-9/7 | Worcester Busters | New England League | , | |
| Edward Mahley | 1906 | 5/78-5/25 | Coffeyville Bricks | Kansas State League | , | ||
| William Mahling | mahlin001wil | 1906 | 5/7-9/21 | Newark Sailors | Eastern League | , | |
| Eugene Mahon | mahon-001eug | 1906 | 7/18-9/3 | Grays Harbor Lumbermen | Northwestern League | , | |
| Ed Mahoney | mahone001edw | 1906 | Fort Dodge Gypsumites | Iowa League | , | ||
| Willard Mains | mains-001wil | 1906 | 5/15-6/25 | Syracuse Stars | New York State League | , | |
| Willard Mains | mains-001wil | 1906 | 6/29 | Binghamton Bingoes | New York State League | , | |
| Louis Maire | maire-001lou | 1906 | +5/15-5/27+ | Lima | Interstate Association | , | |
| Louis Maire | maire-001lou | 1906 | +7/21-9/23 | Saginaw | Southern Michigan League | , | |
| Edgar Maitland | maitla001edg | 1906 | 6/21-6/23 | Williamsport Millionaires | Tri-State League | , | |
| Edgar Maitland | maitla001edg | 1906 | 9/3-9/6 | Williamsport Millionaires | Tri-State League | , | |
| Major | 1906 | Evan.-Seal Backs | Independent | , | |||
| Major | 1906 | 7/29+ | Terre Haute Hottentots | Central League | , | ||
| Burton Major | major-000bur | 1906 | Auburn | Empire State League | , | ||
| John Malarkey | malark001joh | 1906 | 4/12-9/15 | Montgomery Senators | Southern Association | , | |
| Charlie Malay | malay-001cha | 1906 | 4/26-6/30 | Newark Sailors | Eastern League | , | |
| Charlie Malay | malay-001cha | 1906 | 7/26-9/12 | Rochester Bronchos | Eastern League | , | |
| Carl Mallon | 1906-07 | Kansas State U. | College | , | |||
| Mallory | 1906 | Temple Boll Weevils | Texas League | , | |||
| Chief Mallory | 1906 | 9/4 | Lincoln Ducklings | Western League | , | ||
| Malloy | 1906 | Massillion OH | Independent | , | |||
| Herm Malloy | malloy001her | 1906 | 5/14-9/8 | 30 g. | Evansville River Rats | Central League | , |
| Malone | 1906 | 5/30-6/22 | Umpire | Connecticut State League | , | ||
| Maloney | 1906 | 8/11-8/17 | Lowell Tigers | New England League | , | ||
| Billy Maloney | malone003wil | 1906 | Brooklyn | National League | Brooklyn, NY | ||
| Curley Maloney | malone005jam | 1906 | 4/25-9/3 | Dallas Giants | Texas League | , | |
| William Maloney | malone005wil | 1906 | -9/29 | 132 g. | Youngstown Ohio Works | Ohio-Pennsylvania League | , |
| Nicholas Malvern | malver001nic | 1906 | 41 g. | Wausau Lumberjacks | Wisconsin State League | , | |
| Nicholas Malvern | malver001nic | 1906 | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Frank Manion | 1906 | Geneva | Empire State League | , | |||
| George Manion | manion001geo | 1906 | Penn Yan | Empire State League | , | ||
| George Manion | manion001geo | 1906 | 7/17-9/3 | Haverhill Hustlers | New England League | , | |
| Harry Manner | manner001har | 1906 | 4/27-7/7+ | Terre Haute Hottentots | Central League | , | |
| Manning | 1906 | Utica Pent-Ups | New York State League | , | |||
| Edward Manning | 1906 | 5/21-6/9 | Utica Pent-Ups | New York State League | , | ||
| Edward Manning | 1906 | Glens Falls-Saratoga Springs | Hudson River League | , | |||
| Edward Manning | 1906 | 9/3-9/23 | Utica Pent-Ups | New York State League | , | ||
| John Manning | mannin001joh | 1906 | 4/26 | Rochester Bronchos | Eastern League | , | |
| John Manning | mannin001joh | 1906 | 5/10-9/23 | Utica Pent-Ups | New York State League | , | |
| Rube Manning | mannin001wal | 1906 | 4/27-9/15 | Williamsport Millionaires | Tri-State League | , | |
| Jim Mansfield | 1906 | Holy Cross Col. | College | , | |||
| Jim Mansfield | 1906 | Pawtucket RI | Independent | , | |||
| Lou Manske | manske001lou | 1906 | 30 g. | Des Moines Champs | Western League | , | |
| Lou Manske | manske001lou | 1906 | 8/31-9/7 | Pittsburgh | National League | Pittsburgh, PA | |
| Bobby Mantel | 1906 | Cornell Univ. | College | , | |||
| Bobby Mantel | 1906 | Ithaca NY | Independent | , | |||
| Moxie Manuel | manuel001mar | 1906 | 4/22-9/9 | New Orleans Pelicans | Southern Association | , | |
| George Manush | 1906 | 5/16-6/23 | Memphis Egyptians | Southern Association | , | ||
| Art Marcan | marcan002art | 1906 | 4/18-5/20 | St. Paul Saints | American Association | , | |
| Art Marcan | marcan002art | 1906 | 5/30-9/16 | Indianapolis Indians | American Association | , | |
| George Markley | markle001geo | 1906 | 39 g. | Oakland Oaks | Pacific Coast League | , | |
| William Marnin | mornin001--- | 1906 | Bradford Drillers | Interstate League | , | ||
| William Marohn | 1906 | 9 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| Rube Marquard | marqua001ric | 1906 | 5/1 | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Rube Marquard | marqua001ric | 1906 | Waterloo Microbes | Iowa League | , | ||
| Marquette | 1906 | +5/17+ | U. Minnesota | College | , | ||
| Marquette | 1906 | +5/28-6/2+ | Grand Forks Forkers | Northern-Copper Country League | , | ||
| Marquette | 1906 | Church’s Ferry ND | Independent | , | |||
| Michael Marre | marre-001ang | 1906 | preseason | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| Marshall | 1906 | 5/9+ | Americus Pallbearers | Georgia State League | , | ||
| Archie Marshall | marsha001arc | 1906 | 4/26-5/14 | Altoona Mountaineers | Tri-State League | , | |
| Archie Marshall | marsha001arc | 1906 | 5/16-9/15 | Johnstown Johnnies | Tri-State League | , | |
| Doc Marshall | marsha005wil | 1906 | 38 g. | New York | National League | New York, NY | |
| Doc Marshall | marsha005wil | 1906 | 39 g. | St. Louis | National League | St. Louis, MO | |
| Joe Marshall | marsha001jos | 1906 | - 8/17 | 33 g. | St. Louis | National League | St. Louis, MO |
| Doc Martell | martel001leo | 1906 | Georgetown | College | , | ||
| Doc Martell | martel001leo | 1906 | +7/10+ | Burlington | Northern Independent League | , | |
| Doc Martell | martel001leo | 1906 | +7/25-8/25 | Ottawa | Northern Independent League | , | |
| Doc Martell | martel001leo | 1906 | +9/1-9/3+ | DuBois Miners | Interstate League | , | |
| Martin | 1906 | 7/19-7/25 | Darlington | South Carolina League | , | ||
| Martin | 1906 | 7/24-7/28 | Manning | South Carolina League | , | ||
| Martin | 1906 | 43 g. | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| Dave Martin | martin001dav | 1906 | 4/18-4/22 | Indianapolis Indians | American Association | , | |
| Dave Martin | martin001dav | 1906 | 5/3-9/23 | Terre Haute Hottentots | Central League | , | |
| Doc Martin | martin006har | 1906-08 | Tufts University | College | , | ||
| Frank Martin | 1906 | Chic.-Athletics | Chicago City League | , | |||
| Frank Martin | 1906 | 7/30-9/16 | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| Harry Martin | martin007har | 1906 | +5/27-9/23 | Mount Clemens Bathers | Southern Michigan League | , | |
| Joe Martin | martin006jos | 1906 | 4/25-5/15 | Johnstown Johnnies | Tri-State League | , | |
| Joe Martin | martin006jos | 1906 | 5/22-9/15 | Harrisburg Senators | Tri-State League | , | |
| Merritt Martin | 1906 | Ashtabula OH | Independent | , | |||
| Merritt Martin | 1906 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |||
| Merritt Martin | 1906 | Erie Sailors | Interstate League | , | |||
| Prescott Martin | 1906 | Wofford College | College | , | |||
| Prescott Martin | 1906 | 6/11-8/18 | Sumter Game Cocks | South Carolina League | , | ||
| Felix Martinke | martin003fel | 1906 | 4/28-7/8 | Spokane Indians | Northwestern League | , | |
| Ed Marvin | 1906 | 6/9-7/5 | Webb City Goldbugs | Western Association | , | ||
| Marx | 1906 | 7/21-7/22 | Grays Harbor Lumbermen | Northwestern League | , | ||
| Claudius Mason | mason-001cla | 1906 | 21 g. | Chanute Browns | Kansas State League | , | |
| Del Mason | mason-001ade | 1906 | 4/27-9/19 | Baltimore Orioles | Eastern League | , | |
| Del Mason | mason-001ade | 1906 | 9/25-9/29 | Cincinnati | National League | Cincinnati, OH | |
| Del Mason | mason-001ade | 1906 | Rollins College | College | , | ||
| Ferdinand Mason | mason-001f-- | 1906 | 5/3- | Fort Scott Giants | Kansas State League | , | |
| Ferdinand Mason | mason-001f-- | 1906 | 31 g. | Independence Coyotes | Kansas State League | , | |
| Harry Mason | mason-002har | 1906 | 5/11-9/23 | Troy Trojans | New York State League | , | |
| Harry Mason | 1906 | PA State Univ. | College | , | |||
| Nel Mason | mason-001nel | 1906 | Muncie Fruit Jars | Interstate Association | , | ||
| Nel Mason | mason-001nel | 1906 | +6/3+ | Marion | Interstate Association | , | |
| Nel Mason | mason-001nel | 1906 | +7/22-9/23 | Saginaw | Southern Michigan League | , | |
| Bill Massey | massey001bil | 1906 | 4/27-6/28 | Montreal Royals | Eastern League | , | |
| Bill Massey | massey001bil | 1906 | 7/3-9/8 | Holyoke Paperweights | Connecticut State League | , | |
| John Massing | massin001joh | 1906 | 104 g. | Houston Buffaloes | South Texas League | , | |
| Thomas Masterson | master001tho | 1906 | 209 ab | Paterson Intruders | Hudson River League | , | |
| George Mathay | 1906 | 4/28-9/29 | Akron Rubbernecks | Ohio-Pennsylvania League | , | ||
| Mathers | 1906 | Connellsville PA | Independent | , | |||
| Mathers | 1906 | 7/28-7/31 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Mathers | 1906 | 9/10 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Christy Mathewson | mathew001chr | 1906 | 38 g. | New York | National League | New York, NY | |
| Henry Mathewson | mathew001hen | 1906 | 9/28 - | 2 g. | New York | National League | New York, NY |
| Mathis | 1906 | 8/3-8/11 | Manning | South Carolina League | , | ||
| William Mathis | 1906 | Chanute-Elks | Independent | , | |||
| William Mathis | 1906 | 5/8 | Chanute Browns | Kansas State League | , | ||
| William Mathis | 1906 | 7/23 | Chanute Browns | Kansas State League | , | ||
| William Mathis | 1906 | +7/30+ | Chanute-Eagles | Independent | , | ||
| Grover Matney | matney001gro | 1906 | 5/3-5/19 | Pueblo Indians | Western League | , | |
| Grover Matney | matney001gro | 1906 | 9/2+ | Trinidad CO | Independent | , | |
| Al Mattern | matter001alo | 1906 | 5/8-7/20 | Montreal Royals | Eastern League | , | |
| Matthews | 1906 | 6/12-8/11 | Georgetown | South Carolina League | , | ||
| Matthews | 1906 | 8/8 | Manning | South Carolina League | , | ||
| Harry Matthews | matthe001har | 1906 | 4/11-9/15 | Birmingham Barons | Southern Association | , | |
| William Matthews | matthe002wil | 1906 | 4/27-9/15 | York Penn Parks | Tri-State League | , | |
| William Matthews | matthe002wil | 1906 | 9/3 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| Wilson Matthews | matthe004wil | 1906 | 4/16-5/19 | Umpire | South Atlantic League | , | |
| Wilson Matthews | matthe004wil | 1906 | 5/22 | Savannah Indians | South Atlantic League | , | |
| Walter Mattick | 1906 | 55 g. | Oskaloosa Quakers | Iowa League | , | ||
| Mattie Mattison | 1906 | 129 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | ||
| Mattie Mattison | 1906 | 9/14-9/25 | Evansville River Rats | Central League | , | ||
| Hugo? Matzner | 1906 | 1 g. | Meridian Ribboners | Cotton States League | , | ||
| Al Mauch | mauch-001alb | 1906 | 4/27-9/8 | Manchester Textiles | New England League | , | |
| Bernard Maurer | maurer001ber | 1906 | 5/14-9/23 | Syracuse Stars | New York State League | , | |
| John Maury | maury-003--- | 1906 | +7/24+ | Alle.-Athletics | Independent | , | |
| Maxwell | 1906 | 8/12 | Galveston Sand Crabs | South Texas League | , | ||
| Bert Maxwell | maxwel001jam | 1906 | 4/19-9/1 | Montgomery Senators | Southern Association | , | |
| Bert Maxwell | maxwel001jam | 1906 | 9/12 | Pittsburgh | National League | Pittsburgh, PA | |
| Elwood Maxwell | maxwel001c-- | 1906 | 5/24-7/30 | Washington | Pennsylvania-Ohio-Maryland League | , | |
| Elwood Maxwell | maxwel001c-- | 1906 | 8/10-8/25 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Elwood Maxwell | maxwel001c-- | 1906 | 8/31-9/11 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| William May | may---002wil | 1906 | 4/14-4/21 | Montgomery Senators | Southern Association | , | |
| William May | may---002wil | 1906 | 5/11-5/18 | Savannah Indians | South Atlantic League | , | |
| William May | may---002wil | 1906 | 40 g. | Gulfport Crabs | Cotton States League | , | |
| Jesse Mays | mays--001pik | 1906 | 5/1-7/22+ | Tulsa Oilers | South Central League | , | |
| Dan McAleese | mcalee001dan | 1906 | 4/13-8/16 | Montgomery Senators | Southern Association | , | |
| Jack McAleese | mcalee001joh | 1906 | 5/7-5/9 | Baltimore Orioles | Eastern League | , | |
| Jack McAleese | mcalee001joh | 1906 | 5/18-8/4 | Johnstown Johnnies | Tri-State League | , | |
| Jack McAleese | mcalee001joh | 1906 | 8/10-9/15 | Harrisburg Senators | Tri-State League | , | |
| James McAlester | 1906 | President | South Central League | , | |||
| James McAlester | 1906 | 5/29-8/5 | South McAlester Miners | South Central League | , | ||
| L. B. McAlester | 1906 | South McAlester Miners | South Central League | , | |||
| L. B. McAlester | 1906 | 8/12-8/23 | Dallas Giants | Texas League | , | ||
| L. B. McAlester | 1906 | Amarillo TX | Independent | , | |||
| Sport McAllister | mcalli001lew | 1906 | 6/2-9/22 | Buffalo Bisons | Eastern League | , | |
| Tom McAndrew | mcandr002tho | 1906 | 5/10-6/4 | Utica Pent-Ups | New York State League | , | |
| Tom McAndrew | mcandr002tho | 1906 | 6/8-9/23 | Troy Trojans | New York State League | , | |
| Mike McAndrews | mcandr001mic | 1906 | 4/26-8/1 | Waterbury Authors | Connecticut State League | , | |
| Mike McAndrews | mcandr001mic | 1906 | 8/4-8/20 | Holyoke Paperweights | Connecticut State League | , | |
| Patrick McAndrews | mcandr001pat | 1906 | 108 g. | Keokuk Indians | Iowa League | , | |
| Harry McArdle | mcardl001har | 1906 | 363 ab | Paterson Intruders | Hudson River League | , | |
| Robert McAuley | mcaule001rob | 1906 | 111 g. | Green Bay Colts | Wisconsin State League | , | |
| Robert McAuley | mcaule001rob | 1906 | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| George McAvoy | 1906 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |||
| Walter McBirney | mcbirn001--- | 1906 | Syracuse Univ | College | , | ||
| Walter McBirney | mcbirn001--- | 1906 | 6/13-8/7 | Utica Pent-Ups | New York State League | , | |
| Walter McBirney | mcbirn001--- | 1906 | Norwich CT | Independent | , | ||
| George McBride | mcbrid001geo | 1906 | 90 g. | St. Louis | National League | St. Louis, MO | |
| George McBride | mcbrid001geo | 1906 | 7/26-9/16 | Kansas City Blues | American Association | , | |
| Bill McCabe | mccabe005wil | 1906 | Poughkeepsie Colts | Hudson River League | , | ||
| Francis McCabe | mccabe002fra | 1906 | +7/2-7/19 | Plattsburgh | Northern Independent League | , | |
| Francis McCabe | mccabe002fra | 1906 | 7/26-9/7 | Manchester Textiles | New England League | , | |
| Hugh McCabe | 1906 | 122 g. | Kingston Colonials | Hudson River League | , | ||
| Swat McCabe | mccabe002jam | 1906 | 4/26-9/8 | Waterbury Authors | Connecticut State League | , | |
| Thomas McCabe | 1906 | +10/1+ | Scra.-Athletics | Independent | , | ||
| William McCabe | mccabe008wil | 1906 | Elkton MD | Independent | , | ||
| William McCabe | mccabe001wil | 1906 | 5/11-5/19 | Sioux City Packers | Western League | , | |
| William McCabe | mccabe001wil | 1906 | 6/25-9/15 | Lancaster Red Roses | Tri-State League | , | |
| Charles McCafferty | mccaff002cha | 1906 | 4/26-9/19 | Toronto Maple Leafs | Eastern League | , | |
| McCain | 1906 | 5/26-9/15 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Harry McCain | 1906 | +6/18+ | Fort Wayne | Interstate Association | , | ||
| Harry McCain | 1906 | +7/22-9/23 | Battle Creek Crickets | Southern Michigan League | , | ||
| John McCall | mccall001joh | 1906 | 36 g. | Austin Senators | South Texas League | , | |
| Jack McCallister | mccall001jac | 1906 | 5/10-9/23 | Binghamton Bingoes | New York State League | , | |
| Michael McCallum | 1906 | Geneva | Empire State League | , | |||
| Gene McCann | mccann001hen | 1906 | 6/8-9/20 | Jersey City Skeeters | Eastern League | , | |
| Mike McCann | mccann001mic | 1906 | 4/12-5/17 | Little Rock Travelers | Southern Association | , | |
| Mike McCann | mccann001mic | 1906 | 5/20-8/22 | Montgomery Senators | Southern Association | , | |
| McCarthy | 1906 | 76 ab | Hudson Marines | Hudson River League | , | ||
| McCarthy | 1906 | Oswego | Empire State League | , | |||
| Arch McCarthy | mccart001arc | 1906 | 26 g. | Toronto Maple Leafs | Eastern League | , | |
| Daniel McCarthy | mccart004dan | 1906 | 5/3-8/6 | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| Jack McCarthy | mccart003joh | 1906 | 91 g. | Brooklyn | National League | Brooklyn, NY | |
| Jack McCarthy | mccart003joh | 1906 | 5/24-6/2 | Providence Grays | Eastern League | , | |
| Jack McCarthy | mccart003joh | 1906 | Chic.-Logan Sq | Independent | , | ||
| Jack McCarthy | mccart003joh | 1906 | 7/-9/9 | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | |
| Jack McCarthy | mccart004jac | 1906 | U. of California | College | , | ||
| Jack McCarthy | mccart004jac | 1906 | 6/16-8/6 | Umpire | Western League | , | |
| Jack McCarthy | mccart004jac | 1906 | Umpire | Pacific Coast League | , | ||
| Joe McCarthy | mccart004jos | 1906 | Sacramento Cordovas | California League | , | ||
| Joe McCarthy | mccart003jos | 1906 | -7/8 | 15 g. | St. Louis | National League | St. Louis, MO |
| Joe McCarthy | mccart003jos | 1906 | 7/19-8/4 | Altoona Mountaineers | Tri-State League | , | |
| Joe McCarthy | mccart003jos | 1906 | 8/31-9/23 | Syracuse Stars | New York State League | , | |
| Joseph McCarthy | 1906 | Phil.-Germantown | Independent | , | |||
| Patrick McCarthy | 1906 | 99 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | ||
| Teddy McCarthy | 1906 | Wash.-Dept. | , | ||||
| Tom McCarthy | mccart005tho | 1906 | +6/2-9/23 | Mount Clemens Bathers | Southern Michigan League | , | |
| Tommy McCarthy | mccart001tom | 1906 | Dartmouth Col. | College | , | ||
| William McCarthy | mccart008wil | 1906 | 4/21 | Boston | National League | Boston, MA | |
| J. T. McCarty | 1906 | San Francisco | , | ||||
| Pat McCauley | mccaul001pat | 1906 | 4/27-8/6 | Newark Sailors | Eastern League | , | |
| William McCauley | 1906 | 5/15-6/2+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Bernard McCay | mccay-001ber | 1906 | 4/19-9/4 | Baton Rouge Cajuns | Cotton States League | , | |
| Bernard McCay | mccay-001ber | 1906 | 9/6-9/15 | Little Rock Travelers | Southern Association | , | |
| Harry McChesney | mcches001har | 1906 | 4/18-9/16 | Milwaukee Brewers | American Association | , | |
| James McClain | mcclai001jam | 1906 | 115 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| James McClain | mcclai001jam | 1906 | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | ||
| James McClain | mcclai001jam | 1906 | 9/14-9/21 | Evansville River Rats | Central League | , | |
| Edward McCleary | 1906 | 8/6-8/30 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Jack McClellan | 1906 | 105 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | ||
| Walter McClelland | 1906 | Pawt.-LHA-IOOF | Independent | , | |||
| Walter McClelland | 1906 | Los Angeles Angels | Pacific Coast League | , | |||
| Albert McClintock | mcclin001a-- | 1906 | -9/29 | 110 g. | Youngstown Ohio Works | Ohio-Pennsylvania League | , |
| James McClintock | 1906 | 5/7-9/9 | Chanute Browns | Kansas State League | , | ||
| Charles McCloskey | mcclos002cha | 1906 | -9/29 | 123 g. | Youngstown Ohio Works | Ohio-Pennsylvania League | , |
| John McCloskey | mcclos001joh | 1906 | St. Louis | National League | St. Louis, MO | ||
| John McCloskey | mcclos002jam | 1906 | 5/3- | 9 g. | Philadelphia | National League | Philadelphia, PA |
| John McCloskey | mcclos002jam | 1906 | 7/9-9/22 | Providence Grays | Eastern League | , | |
| Harry McCloud | mcclou002har | 1906 | Umpire | Vermont League | , | ||
| Joseph McCollum | 1906 | 8/13-8/27 | Webb City Goldbugs | Western Association | , | ||
| William McCombs | mccomb001wil | 1906 | 4/27-9/25 | Wheeling Stogies | Central League | , | |
| Amby McConnell | mcconn001amb | 1906 | 5/10-9/23 | Utica Pent-Ups | New York State League | , | |
| George McConnell | mcconn001geo | 1906 | 4/26-9/22 | Buffalo Bisons | Eastern League | , | |
| Jack McConnell | mcconn002joh | 1906 | 5/3-9/16 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Lanty McConnell | mcconn002lan | 1906 | 5/24-9/15 | Washington | Pennsylvania-Ohio-Maryland League | , | |
| John McCord | mccord001joh | 1906 | 4/23-4/24 | Louisville Colonels | American Association | , | |
| John McCord | mccord001joh | 1906 | 5/9-5/18 | Columbia Gamecocks | South Atlantic League | , | |
| McCormack | 1906 | 5/3-6/7 | Albany | Georgia State League | , | ||
| McCormack | 1906 | +7/7 | Waycross Machinists | Georgia State League | , | ||
| Mike McCormack | mccorm003mic | 1906 | 4/26-8/1 | Holyoke Paperweights | Connecticut State League | , | |
| Mike McCormack | mccorm003mic | 1906 | +8/9+ | Rutland | Northern Independent League | , | |
| McCormick | 1906 | Lincoln Ducklings | Western League | , | |||
| McCormick | 1906 | Boone/Clinton Miners | Iowa League | , | |||
| Barry McCormick | mccorm002wil | 1906 | 4/18-9/16 | Milwaukee Brewers | American Association | , | |
| Frank McCormick | mccorm002fra | 1906 | 5/7-5/18 | Rochester Bronchos | Eastern League | , | |
| Frank McCormick | mccorm002fra | 1906 | Hudson Marines | Hudson River League | , | ||
| Frank McCormick | mccorm002fra | 1906 | 9/9-9/23 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Harry McCormick | mccorm004har | 1906 | 5/30 | York Penn Parks | Tri-State League | , | |
| James McCormick | 1906 | 24 g. | Portsmouth Truckers | Virginia League | , | ||
| Louis McCormick | mccorm001l-- | 1906 | +7/8-7/12+ | Parsons Preachers | Kansas State League | , | |
| Louis McCormick | mccorm001l-- | 1906 | 7/16 | Tulsa Oilers | South Central League | , | |
| Louis McCormick | mccorm001l-- | 1906 | 7/18-7/20 | Guthrie Senators | South Central League | , | |
| Louis McCormick | mccorm001l-- | 1906 | 34 g. | San Antonio Bronchos | South Texas League | , | |
| William McCormick | 1906 | 95 g. | Duluth White Sox | Northern-Copper Country League | , | ||
| Bill McCorry | mccorr001wil | 1906 | Plattsburgh | Northern Independent League | , | ||
| Alexander McCracken | 1906 | Pitt.-Collegians | Independent | , | |||
| Alexander McCracken | 1906 | 8/10-8/25 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | ||
| Arthur McCracken | mccrac001art | 1906 | Canton Chinamen | Central League | , | ||
| John McCrane | mccran001joh | 1906 | 4/11-5/3 | Montgomery Senators | Southern Association | , | |
| John McCrane | mccran001joh | 1906 | 5/14-6/17 | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| John McCrane | mccran001joh | 1906 | 7/7-9/15 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Mater McCrea | 1906 | Charleroi | Valley | , | |||
| Mater McCrea | 1906 | 5/29 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Mater McCrea | 1906 | 6/25-7/7 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Mater McCrea | 1906 | 7/14-7/18 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Mater McCrea | 1906 | 7/20-7/23 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Hugh McCredie | 1906 | U. Oklahoma | College | , | |||
| Hugh McCredie | 1906 | 7/8 | Shawnee Blues | South Central League | , | ||
| Hugh McCredie | 1906 | 7/13 | Coffeyville Bricks | Kansas State League | , | ||
| Judge McCredie | mccred001wal | 1906 | 153 g. | Portland Beavers | Pacific Coast League | , | |
| Tom McCreery | mccree001tho | 1906 | no g. | Indianapolis Indians | American Association | , | |
| McCreight | 1906 | 22 g. | Lake Charles Creoles | South Texas League | , | ||
| Wallace McCrory | 1906 | +6/23+ | Chanute-Eagles | Independent | , | ||
| Wallace McCrory | 1906 | 5/25 | Chanute Browns | Kansas State League | , | ||
| Thomas McCrossin | 1906 | Hornell/Patton Pigmies | Interstate League | , | |||
| Hugh McCulley | 1906 | 4/25-6/30 | Temple Boll Weevils | Texas League | , | ||
| Hugh McCulley | 1906 | 59 g. | Austin Senators | South Texas League | , | ||
| McCullough | 1906 | 6/16-6/20 | Darlington | South Carolina League | , | ||
| Hugh McCullum | mccull003hug | 1906 | 4/28-8/7 | South McAlester Miners | South Central League | , | |
| Hugh McCune | 1906 | Tren.-Roeblings | Independent | , | |||
| William McCutcheon | mccutc000bil | 1906 | +7/29+ | SSM-Brimley | Independent | , | |
| Arch McDaniels | mcdani001arc | 1906 | 5/1-8/10 | Manchester Textiles | New England League | , | |
| McDermott | 1906 | 4/20 | Savannah Indians | South Atlantic League | , | ||
| Tom McDermott | mcderm005tho | 1906 | 4/27-9/8 | Fall River Indians | New England League | , | |
| Harry McDevitt | 1906 | 9/1-9/8 | Lowell Tigers | New England League | , | ||
| Will McDevitt | mcdevi001wil | 1906 | 112 g. | Mobile Sea Gulls | Cotton States League | , | |
| Will McDevitt | mcdevi001wil | 1906 | Vicksburg Hill Billies | Cotton States League | , | ||
| Eddie McDill | mcdill001edw | 1906 | 5/4-8/10 | Webb City Goldbugs | Western Association | , | |
| Eddie McDill | mcdill001edw | 1906 | 8/11-9/20 | Joplin Miners | Western Association | , | |
| McDonald | 1906 | 5/25-7/5 | Dayton Veterans | Central League | , | ||
| McDonald | 1906 | 4/26-6/12 | Danville Red Sox | Virginia League | , | ||
| McDonald | 1906 | 7/7-7/12 | Wichita Jobbers | Western Association | , | ||
| Edward McDonald | mcdona002edw | 1906 | 4/28- | New Bedford Whalers | New England League | , | |
| Edward McDonald | mcdona002edw | 1906 | 6/24-9/23 | Utica Pent-Ups | New York State League | , | |
| Edward McDonald | mcdona002edw | 1906 | -9/8 | New Bedford Whalers | New England League | , | |
| Harry McDonald | 1906 | 7 g. | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| Harry McDonald | 1906 | Sharon Steels | Ohio-Pennsylvania League | , | |||
| Harry McDonald | 1906 | 5/7 | Chanute Browns | Kansas State League | , | ||
| Harry McDonald | 1906 | 5/11 | Coffeyville Bricks | Kansas State League | , | ||
| Harry McDonald | 1906 | 5/14-6/3 | Pittsburg/Vinita Champs | Kansas State League | , | ||
| Harry McDonald | 1906 | 6/4-6/22 | Pittsburg/Vinita Champs | Kansas State League | , | ||
| John McDonald | mcdona008joh | 1906 | Punxsutawney Policemen | Interstate League | , | ||
| John McDonald | 1906 | Erie Sailors | Interstate League | , | |||
| Joseph McDonald | mcdona003jos | 1906 | 4/27-7/28 | Haverhill Hustlers | New England League | , | |
| Patrick McDonald | 1906 | Johns Hopkins | College | , | |||
| Patrick McDonald | 1906 | 51 g. | Baltimore Orioles | Eastern League | , | ||
| Simon McDonald | 1906 | Waterbury Authors | Connecticut State League | , | |||
| Edgar McDonnell | 1906 | +6/28-8/27+ | Jackson Convicts | Southern Michigan League | , | ||
| Harry McDonnell | 1906 | 6/23-7/11+ | Battle Creek Crickets | Southern Michigan League | , | ||
| P. J. McDonnell | 1906 | no g. | Utica Pent-Ups | New York State League | , | ||
| P. J. McDonnell | 1906 | 6/5-9/5 | Baltimore Orioles | Eastern League | , | ||
| P. J. McDonnell | 1906 | John Hopkins | College | , | |||
| John McDonough | 1906 | 39 g. | Portsmouth Truckers | Virginia League | , | ||
| Sandy McDougal | mcdoug002joh | 1906 | 4/27 | Johnstown Johnnies | Tri-State League | , | |
| Sandy McDougal | mcdoug002joh | 1906 | 5/11-9/21 | Scranton Miners | New York State League | , | |
| James McDowell | mcdowe002jam | 1906 | 5/4 | Leavenworth Old Soldiers | Western Association | , | |
| Joseph McDowell | 1906 | New Bedford Whalers | New England League | , | |||
| Mickey McDowell | 1906 | 5/3-6/28+ | Coffeyville Bricks | Kansas State League | , | ||
| Roy McDowell | 1906 | Runnells IA | Independent | , | |||
| Pryor McElveen | mcelve001pry | 1906 | 4/16-9/3 | Jacksonville Jays | South Atlantic League | , | |
| Charles McEnroe | 1906 | 8/13-9/8 | Waterbury Authors | Connecticut State League | , | ||
| John McEvoy | 1906 | 121 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| John McFall | 1906 | 6/20-6/28 | Manning | South Carolina League | , | ||
| Chappie McFarland | mcfarl002cha | 1906 | 6 g. | St. Louis | National League | St. Louis, MO | |
| Chappie McFarland | mcfarl002cha | 1906 | 6 g. | Pittsburgh | National League | Pittsburgh, PA | |
| Chappie McFarland | mcfarl002cha | 1906 | 8/7 | Brooklyn | National League | Brooklyn, NY | |
| Herm McFarland | mcfarl001her | 1906 | 5/1-6/16 | Providence Grays | Eastern League | , | |
| Herm McFarland | mcfarl001her | 1906 | 6/21-9/15 | York Penn Parks | Tri-State League | , | |
| Monte McFarland | mcfarl001mon | 1906 | 5/3-9/16 | Dubuque Dubs | Illinois-Indiana-Iowa League | , | |
| Roy McFarland | mcfarl001roy | 1906 | 29 g. | San Antonio Bronchos | South Texas League | , | |
| John McFarlin | mcfarl001j-- | 1906 | 3 g. | Meridian Ribboners | Cotton States League | , | |
| Jack McFetridge | mcfetr001joh | 1906 | Atlantic City NJ | Independent | , | ||
| Jack McFetridge | mcfetr001joh | 1906 | +9/28+ | Phil.- P&P | Independent | , | |
| McGee | 1906 | 6/11 | Darlington | South Carolina League | , | ||
| Connie McGeehan | mcgeeh001cor | 1906 | , | ||||
| Bill McGill | mcgill004wil | 1906 | 38 g. | Austin Senators | South Texas League | , | |
| Charles McGill | mcgill002cha | 1906 | 46 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | |
| Willie McGill | mcgill005wil | 1906 | Chic.-Indep | Independent | , | ||
| McGilligan | 1906 | 7/13-7/21 | Sumter Game Cocks | South Carolina League | , | ||
| Bill McGilvray | mcgilv001wil | 1906 | 5/13-9/30 | Pueblo Indians | Western League | , | |
| Bill McGilvray | mcgilv001wil | 1906 | 15 g. | Seattle Siwashes | Pacific Coast League | , | |
| McGilvy | 1906 | Grand Haven MI | Independent | , | |||
| McGilvy | 1906 | 9/4 | South Bend Greens | Central League | , | ||
| McGinley | 1906 | 5/3-5/9 | Chanute Browns | Kansas State League | , | ||
| Jim McGinley | mcginl001jam | 1906 | 4/27-9/21 | Toronto Maple Leafs | Eastern League | , | |
| William McGinley | 1906 | Fulton | Empire State League | , | |||
| William McGinley | 1906 | 6/16-7/1 | Utica Pent-Ups | New York State League | , | ||
| James McGinty | 1906 | 8/7-9/14 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Stoney McGlynn | mcglyn001uly | 1906 | 4/26-8/11 | York Penn Parks | Tri-State League | , | |
| Stoney McGlynn | mcglyn001uly | 1906 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| Stoney McGlynn | mcglyn001uly | 1906 | 9/3-9/15 | York Penn Parks | Tri-State League | , | |
| Stoney McGlynn | mcglyn001uly | 1906 | 9/20- | 6 g. | St. Louis | National League | St. Louis, MO |
| McGovern | 1906 | 7/23- | Burlington | Northern Independent League | , | ||
| Art McGovern | mcgove001art | 1906 | 5/3-6/20 | Toronto Maple Leafs | Eastern League | , | |
| Art McGovern | mcgove001art | 1906 | 8/11-9/8 | Manchester Textiles | New England League | , | |
| James McGrady | 1906 | 4/28 | Lawrence Colts | New England League | , | ||
| James McGrady | 1906 | 8/22 | Haverhill Hustlers | New England League | , | ||
| McGrath | 1906 | 11 g. | Lowell Tigers | New England League | , | ||
| Jack McGrath | 1906 | Umpire | Georgia State League | , | |||
| Jack McGrath | 1906 | 7/11-8/15 | Umpire | South Atlantic League | , | ||
| Bernard McGraw | mcgraw009--- | 1906 | 4/28-5/11 | Lowell Tigers | New England League | , | |
| John McGraw | mcgraw003joh | 1906 | New York | National League | New York, NY | ||
| Samuel McGraw | 1906 | Seneca Falls | Empire State League | , | |||
| Ted McGrew | mcgrew001har | 1906 | 4/27-9/20 | Canton Chinamen | Central League | , | |
| Deacon McGuire | mcguir006jam | 1906 | New York | American League | New York, NY | ||
| Eddie McGuire | 1906 | Seneca Falls | Empire State League | , | |||
| L. McGuire | 1906 | Seneca Falls | Empire State League | , | |||
| McGulland | 1906 | 7/16 | South McAlester Miners | South Central League | , | ||
| Bob McHale | mchale001bob | 1906 | 5/4-9/30 | Denver Grizzlies | Western League | , | |
| James McHale | 1906 | San Francisco Orphans | California League | , | |||
| Jim McHale | mchale001jam | 1906 | 171 g. | Portland Beavers | Pacific Coast League | , | |
| John McIlvaine | 1906 | 7/23-8/1 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| John McIlvaine | 1906 | 8/8-9/14 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Irish McIlveen | mcilve001hen | 1906 | 7/4- | 5 g. | Pittsburgh | National League | Pittsburgh, PA |
| Irish McIlveen | mcilve001hen | 1906 | 7/30-9/8 | Washington | Pennsylvania-Ohio-Maryland League | , | |
| Hector McInnes | mcinni001joh | 1906 | 5/4-9/23 | Topeka White Sox | Western Association | , | |
| Harry McIntire | mcinti001joh | 1906 | 45 g. | Brooklyn | National League | Brooklyn, NY | |
| Thomas McIntire | 1906-12 | , | |||||
| Butch McIntyre | mcinty001cha | 1906 | 4/28-9/3 | Butte Miners | Northwestern League | , | |
| Edward McIvor | mcivor001edw | 1906 | 4/25-6/30 | Greenville Hunters | Texas League | , | |
| Edward McIvor | mcivor001edw | 1906 | 7/1-9/3 | Dallas Giants | Texas League | , | |
| Edward McIvor | mcivor001edw | 1906 | 9/7-9/17 | St. Paul Saints | American Association | , | |
| McKay | 1906 | 5/2-5/11 | Waterbury Authors | Connecticut State League | , | ||
| Bernard McKay | mccay-001ber | 1906 | Furman | College | , | ||
| Bernard McKay | mccay-001ber | 1906 | Baton Rouge Cajuns | Cotton States League | , | ||
| Bernard McKay | mccay-001ber | 1906 | Little Rock Travelers | Southern Association | , | ||
| Bernard McKay | mccay-001ber | 1906 | Mobile Sea Gulls | Cotton States League | , | ||
| Daniel Mckay | mckay-001spa | 1906 | 6/7-6/20 | Lake Charles Creoles | South Texas League | , | |
| Reeve McKay | mckay-001ree | 1906 | 5/4-6/27 | Des Moines Champs | Western League | , | |
| Reeve McKay | mckay-001ree | 1906 | 7/2-9/30 | Lincoln Ducklings | Western League | , | |
| Ed McKean | mckean001edw | 1906 | 4/12-5/28 | Little Rock Travelers | Southern Association | , | |
| Ed McKean | mckean001edw | 1906 | 6/3-7/18 | Evansville River Rats | Central League | , | |
| Ed McKean | mckean001edw | 1906 | 7/29-9/20+ | Dayton Veterans | Central League | , | |
| Bill McKechnie | mckech001wil | 1906 | +5/13+ | Butler PA | Independent | , | |
| Bill McKechnie | mckech001wil | 1906 | 5/24-9/15 | Washington | Pennsylvania-Ohio-Maryland League | , | |
| McKellar | 1906 | 5/14 | Springfield Babes | Central League | , | ||
| Frank McKelvey | 1906 | 5/12-5/27 | Bartlesville Indians | Kansas State League | , | ||
| James McKenna | mckenn001jam | 1906 | Boone/Clinton Miners | Iowa League | , | ||
| James McKenna | 1906 | 5/24-5/25 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | ||
| James McKenna | 1906 | 9/4-9/15 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| McKenny | 1906 | 4/26-5/19 | Hartford Senators | Connecticut State League | , | ||
| Edwin McKenzie | 1906 | +8/19+ | Elyria OH | Trolley League | , | ||
| John McKenzie | mckenz001joh | 1906 | +6/14+ | Umpire | Interstate League | , | |
| John McKenzie | mckenz001joh | 1906 | 7/25-9/4 | Umpire | Cotton States League | , | |
| John McKenzie | mckenz001joh | 1906 | 9/5-9/23 | Umpire | Western Association | , | |
| William McKenzie | 1906 | 4/26-9/8 | Danville Red Sox | Virginia League | , | ||
| Francis McKeon | mckeon001fra | 1906 | 5/10-5/31 | Utica Pent-Ups | New York State League | , | |
| Francis McKeon | mckeon001fra | 1906 | 7/9-7/19 | Utica Pent-Ups | New York State League | , | |
| James McKeon | 1906 | South Atlantic League | , | ||||
| Ed McKernan | mckern001edw | 1906 | 4/18-8/29 | Augusta Tourists | South Atlantic League | , | |
| James McKevitt | mckevi001jam | 1906 | 4/26-9/8 | Lynchburg Shoemakers | Virginia League | , | |
| Donald McKim | mckim-001don | 1906 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | ||
| Thomas McKinley | mckinl001tho | 1906 | 6/5-8/8 | Dayton Veterans | Central League | , | |
| McKnight | 1906 | U. Pittsburgh | College | , | |||
| McKnight | 1906 | 6/25- | Monongahela C. | MononVal | , | ||
| R. A. McKnight | 1906 | 5/8-6/7 | Americus Pallbearers | Georgia State League | , | ||
| R. A. McKnight | 1906 | +6/13+ | Columbus/Brunswick River Snipes | Georgia State League | , | ||
| R. A. McKnight | 1906 | 6/25-6/28 | Manning | South Carolina League | , | ||
| R. A. McKnight | 1906 | 7/3-7/26 | Danville Red Sox | Virginia League | , | ||
| R. A. McKnight | 1906 | +8/11-17+ | 14 g. | Roanoke Tigers | Virginia League | , | |
| R. A. McKnight | 1906 | 8/20 | Lynchburg Shoemakers | Virginia League | , | ||
| R. A. McKnight | 1906 | 8/27-9/1+ | Farmville VA | Independent | , | ||
| McKown | 1906 | +4/30+ | Pittsburgh Univ | College | , | ||
| McKown | 1906 | +7/14-7/30+ | Punxsutawney Policemen | Interstate League | , | ||
| William McKune | mckune001wil | 1906 | 4/28-9/3 | Spokane Indians | Northwestern League | , | |
| William McKune | mckune001wil | 1906 | Seattle Siwashes | Pacific Coast League | , | ||
| Marcus McLafferty | 1906 | Butler PA | Independent | , | |||
| Marcus McLafferty | 1906 | 5/29 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| Marcus McLafferty | 1906 | -9/29 | 11 g. | Sharon Steels | Ohio-Pennsylvania League | , | |
| Ed McLane | mclane001edw | 1906 | 6/27-7/6 | Springfield Ponies | Connecticut State League | , | |
| McLaughlin | 1906 | 6/2-6/20+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Barney McLaughlin | mclaug003ber | 1906 | 4/27- | Manchester Textiles | New England League | , | |
| Barney McLaughlin | mclaug003ber | 1906 | -7/20 | Lowell Tigers | New England League | , | |
| George McLaughlin | mclaug003geo | 1906 | 185 g. | Fresno Raisin Eaters | Pacific Coast League | , | |
| Michael McLaughlin | 1906 | Umpire | Cotton States League | , | |||
| Michael McLaughlin | 1906 | +8/1+ | Umpire | Southern Association | , | ||
| Michael McLaughlin | 1906 | 8/6-9/3 | Umpire | South Atlantic League | , | ||
| Michael McLaughlin | 1906 | Umpire | Southern Association | , | |||
| Warren McLaughlin | mclaug001war | 1906 | 4/26-8/17 | New London Whalers | Connecticut State League | , | |
| Warren McLaughlin | mclaug001war | 1906 | 8/18-9/8 | Springfield Ponies | Connecticut State League | , | |
| Ralph McLaurin | mclaur001ral | 1906 | 6/11-8/18 | Camden | South Carolina League | , | |
| McLean | 1906 | 6/27-6/29 | Toronto Maple Leafs | Eastern League | , | ||
| Edward McLean | 1906 | Georgetown U. | College | , | |||
| Edward McLean | 1906 | no g. | Newark Sailors | Eastern League | , | ||
| Edward McLean | 1906 | 6/13-6/19 | Holyoke Paperweights | Connecticut State League | , | ||
| J. McLean | 1906 | 7/13 | Decatur Commodores | Illinois-Indiana-Iowa League | , | ||
| Larry McLean | mclean001joh | 1906 | 82 g. | Portland Beavers | Pacific Coast League | , | |
| Larry McLean | mclean001joh | 1906 | Cincinnati | National League | Cincinnati, OH | ||
| Sam McLean | mclean001fra | 1906 | 4/27-9/20 | Rochester Bronchos | Eastern League | , | |
| Harry McLear | mclear001har | 1906 | 5/4-6/20 | Springfield Midgets | Western Association | , | |
| Harry McLear | mclear001har | 1906 | 7/10-9/23 | Wichita Jobbers | Western Association | , | |
| McLeavy | mcleav000--- | 1906 | Rich.-Brownies | , | |||
| Charles McLin | mclin-001cha | 1906 | 5/3-6/12 | Independence Coyotes | Kansas State League | , | |
| Charles McLin | mclin-001cha | 1906 | 6/24 | Muskogee Indians | South Central League | , | |
| Edward McLuckie | 1906 | 5/3-6/3 | Pittsburg/Vinita Champs | Kansas State League | , | ||
| Edward McLuckie | 1906 | 6/4-7/1 | Pittsburg/Vinita Champs | Kansas State League | , | ||
| Edward McLuckie | 1906 | 7/2-7/25 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| Dan McMahon | mcmaho002dan | 1906 | Vermont Academy | School | , | ||
| Dan McMahon | mcmaho002dan | 1906 | +7/2+ | Plattsburgh | Northern Independent League | , | |
| Dan McMahon | mcmaho002dan | 1906 | +7/25-8/9+ | Montpelier-Barre | Northern Independent | , | |
| Doc McMahon | mcmaho001hen | 1906-08 | Holy Cross Col. | College | , | ||
| Morrison McMahon | mcmaho001m-- | 1906 | 4/26-9/8 | Roanoke Tigers | Virginia League | , | |
| W. McMahon | 1906 | Roanoke Tigers | Virginia League | , | |||
| William McMahon | mcmaho001wil | 1906 | 4/26-9/7 | Norfolk Tars | Virginia League | , | |
| William McMahon | mcmaho001wil | 1906 | 9/15-9/23 | Montreal Royals | Eastern League | , | |
| John McMakin | mcmaki001joh | 1906 | Clemson Univ. | College | , | ||
| John McMakin | mcmaki001joh | 1906 | 5/10 | Montgomery Senators | Southern Association | , | |
| McManus | 1906 | 8/1-8/3 | Spokane Indians | Northwestern League | , | ||
| Frank McManus | mcmanu001fra | 1906 | 4/26-9/15 | Buffalo Bisons | Eastern League | , | |
| Frank McManus | mcmanu001fra | 1906 | Seattle Siwashes | Pacific Coast League | , | ||
| McMichael | 1906 | LancCo | , | ||||
| McMichael | 1906 | 9/8-9/13 | Johnstown Johnnies | Tri-State League | , | ||
| George McMillan | 1906 | Jersey City Skeeters | Eastern League | , | |||
| Tommy McMillan | mcmill004tho | 1906 | Georgia Tech | College | , | ||
| Tommy McMillan | mcmill004tho | 1906 | 91 g. | Baton Rouge Cajuns | Cotton States League | , | |
| Wilfred McMillan | mcmill001wil | 1906 | +6/16-8/10+ | Fargo | Northern-Copper Country League | , | |
| Hugh McMurray | mcmurr002hug | 1906 | 110 g. | Beaumont Oilers | South Texas League | , | |
| John McNally | mcnall002joh | 1906 | 6/21-6/30 | Sharon Steels | Ohio-Pennsylvania League | , | |
| John McNally | mcnall002joh | 1906 | 8/9-8/26 | Sharon Steels | Ohio-Pennsylvania League | , | |
| Bill McNamara | mcnama001wil | 1906 | 5/10-6/9 | Utica Pent-Ups | New York State League | , | |
| Bill McNamara | mcnama001wil | 1906 | 6/11-9/23 | Albany Senators | New York State League | , | |
| Thomas McNamara | 1906 | 5/4-5/7 | Umpire | Western Association | , | ||
| Thomas McNamara | 1906 | 6/1- | Umpire | Ohio-Pennsylvania League | , | ||
| Harry McNeal | mcneal001joh | 1906 | 5/16-9/18 | Baltimore Orioles | Eastern League | , | |
| Hugh McNeeley | mcneel001har | 1906 | 5/2-10/1 | Omaha Rourkes | Western League | , | |
| Bernard McNeil | mcneil001ber | 1906 | 5/14-9/23 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Will McNeil | mcneil003wil | 1906 | 5/19-7/11 | Fargo | Northern-Copper Country League | , | |
| Clyde McNutt | mcnutt001cly | 1906 | Saginaw | Interstate Association | , | ||
| Clyde McNutt | mcnutt001cly | 1906 | Lima | Interstate Association | , | ||
| Frank McPartlin | mcpart002fra | 1906 | 5/3-9/8 | Haverhill Hustlers | New England League | , | |
| John McPherson | mcpher002joh | 1906 | 5/11-6/13 | Troy Trojans | New York State League | , | |
| Matthew McPhilllips | mcphil001--- | 1906 | 5/6-6/1 | Newark Sailors | Eastern League | , | |
| Matthew McPhilllips | mcphil001--- | 1906 | 6/21-9/14 | Johnstown Johnnies | Tri-State League | , | |
| Mart McQuaid | mcquai001mor | 1906 | Alameda Grays | California League | , | ||
| George McQuillan | mcquil002geo | 1906 | 4/29-9/23 | Jersey City Skeeters | Eastern League | , | |
| Frank McShane | 1906 | Hudson Marines | Hudson River League | , | |||
| James McShane | 1906 | +5/7-5/10+ | Bay City | Interstate Association | , | ||
| James McShane | 1906 | +6/1-6/7+ | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Michael McShane | mcshan001mic | 1906 | 7/26-9/8 | Roanoke Tigers | Virginia League | , | |
| Daniel McSurdy | mcsurd001dan | 1906 | 5/14-9/22 | Binghamton Bingoes | New York State League | , | |
| Thomas McTighe | 1906 | 2 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Carl McVey | mcvey-001car | 1906 | 4/28-9/29 | Mansfield Giants | Ohio-Pennsylvania League | , | |
| McWhorter | 1906 | , | |||||
| Wayne McWhorter | 1906 | 7/18-8/6 | Roanoke Tigers | Virginia League | , | ||
| Edward Meade | meade-000pec | 1906 | Freeport Pretzels | Wisconsin State League | , | ||
| John Meade | 1906 | 5/3-6/3 | Pittsburg/Vinita Champs | Kansas State League | , | ||
| John Meade | 1906 | 6/4-7/4 | Pittsburg/Vinita Champs | Kansas State League | , | ||
| John Meade | 1906 | +8/14-9/7+ | Independence Coyotes | Kansas State League | , | ||
| A. Meagher | 1906 | Worcester Busters | New England League | , | |||
| Pat Meaney | meaney002pat | 1906 | 4/12-8/30 | Little Rock Travelers | Southern Association | , | |
| Bill Mecherly | 1906 | Read.-PRR | Independent | , | |||
| Leonard Medlenka | 1906 | Hous.-Culmore | Independent | , | |||
| William Medwetzky | medwit001wil | 1906 | 75 g. | La Crosse Pinks | Wisconsin State League | , | |
| Meehan | 1906 | +8/29+ | Franklin PA | Independent | , | ||
| Daniel Meehan | meehan001dan | 1906 | +6/5+ | Oil City-Jamestown Oseejays | Interstate League | , | |
| Daniel Meehan | meehan001dan | 1906 | Macon Brigands | South Atlantic League | , | ||
| Edward Meehan | 1906 | 4/26-4/27 | Waterbury Authors | Connecticut State League | , | ||
| Edward Meehan | 1906 | +6/5+ | Punxsutawney Policemen | Interstate League | , | ||
| Edward Meehan | 1906 | Oil City-Jamestown Oseejays | Interstate League | , | |||
| Harry Meek | meek--001her | 1906 | 5/16-6/17 | Toronto Maple Leafs | Eastern League | , | |
| Harry Meek | meek--001her | 1906 | 6/25-9/15 | Birmingham Barons | Southern Association | , | |
| Meers | 1906 | 6/23 | Darlington | South Carolina League | , | ||
| Billy Mehl | mehl--001wil | 1906 | 5/19-7/27+ | Fargo | Northern-Copper Country League | , | |
| Omar Mehl | mehl--001oma | 1906 | U. of Pittsburgh | College | , | ||
| Omar Mehl | mehl--001oma | 1906 | 6/17- | 36 g. | Bartlesville Indians | Kansas State League | , |
| Dutch Meier | meier-001art | 1906 | 4/19--10/7 | Pittsburgh | National League | Pittsburgh, PA | |
| Gus Meirs | 1906 | 41 g. | Lake Charles Creoles | South Texas League | , | ||
| Frederick Melchior | melchi001fre | 1906 | 35 g. | Oshkosh Indians | Wisconsin State League | , | |
| Henry Melchoir | melchi001hen | 1906 | 5/2-9/30 | Pueblo Indians | Western League | , | |
| Bill Mellor | mellor001wil | 1906 | 121 g. | Beaumont Oilers | South Texas League | , | |
| John Melvin | 1906 | Umpire | Central League | , | |||
| Samuel Meniece | meniec001sam | 1906 | 94 g. | Winnipeg Maroons | Northern-Copper Country League | , | |
| Mercer | 1906 | Columbus/Brunswick River Snipes | Georgia State League | , | |||
| Mercer | 1906 | +6/25+ | Columbus/Brunswick River Snipes | Georgia State League | , | ||
| Mercer | 1906 | 7/25 | Darlington | South Carolina League | , | ||
| Mercer | 1906 | 7/28-8/14 | Manning | South Carolina League | , | ||
| Joseph Mercer | 1906 | 5/5-6/27+ | Columbus/Brunswick River Snipes | Georgia State League | , | ||
| Joseph Mercer | 1906 | 7/25 | Darlington | South Carolina League | , | ||
| Joseph Mercer | 1906 | 7/28-8/14 | Manning | South Carolina League | , | ||
| Elmer Meredith | meredi001elm | 1906 | 5/6-9/23 | Webb City Goldbugs | Western Association | , | |
| Charles Merkel | 1906 | 5/4-6/2 | Temple Boll Weevils | Texas League | , | ||
| Charles Merkel | 1906 | 7/1-9/2 | Fort Worth Panthers | Texas League | , | ||
| Dominic Merkle | merkle002dom | 1906 | San Jose Prune Pickers | California League | , | ||
| Dominic Merkle | merkle002dom | 1906 | 1 g. | Portland Beavers | Pacific Coast League | , | |
| Fred Merkle | merkle001fre | 1906 | 6/10- | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Fred Merkle | merkle001fre | 1906 | +7/2-9/10+ | Tecumseh | Southern Michigan League | , | |
| George Merritt | merrit002geo | 1906 | 5/3-9/23 | Jersey City Skeeters | Eastern League | , | |
| Sidney Merryman | merrym001sid | 1906 | 4/27-9/21 | Springfield Babes | Central League | , | |
| Frederick Mershon | 1906 | 6/4-6/15 | Oklahoma City Mets | Western Association | , | ||
| Frederick Mershon | 1906 | 6/21-6/23 | Topeka White Sox | Western Association | , | ||
| Sam Mertes | mertes001sam | 1906 | 71 g. | New York | National League | New York, NY | |
| Sam Mertes | mertes001sam | 1906 | - 9/15 | 53 g. | St. Louis | National League | St. Louis, MO |
| Jack Messerly | messer001joh | 1906 | 5/11-7/11 | Binghamton Bingoes | New York State League | , | |
| Jack Messerly | messer001joh | 1906 | 7/13-7/23 | Lancaster Red Roses | Tri-State League | , | |
| Jack Messerly | messer001joh | 1906 | +9/8-9/13+ | Denver Grizzlies | Western League | , | |
| Tom Messitt | messit001tom | 1906 | 5/2-8/17 | Pueblo Indians | Western League | , | |
| Monte Method | method001bel | 1906 | 5/15-9/23 | Kalamazoo White Sox | Southern Michigan League | , | |
| Benjamin Metz | 1906 | +8/12+ | Lafayette CO | Independent | , | ||
| Lewis Metz | metz--001lou | 1906 | 5/3-6/11+ | Dallas Giants | Texas League | , | |
| Lewis Metz | metz--001lou | 1906 | +8/18+ | Texarkana Shine-Oners | Arkansas-Texas League | , | |
| Lewis Metz | metz--001lou | 1906 | 9/1-9/15 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | |
| Benny Meyer | meyer-001ber | 1906 | 4/25-7/28+ | Dallas Giants | Texas League | , | |
| Benny Meyer | meyer-001ber | 1906 | 8/1-9/17 | St. Paul Saints | American Association | , | |
| Harry Meyers | meyers001har | 1906 | 5/2-5/13 | Denver Grizzlies | Western League | , | |
| Harry Meyers | meyers001har | 1906 | 5/16-6/4 | Pueblo Indians | Western League | , | |
| Harry Meyers | meyers001har | 1906 | 6/5-7/25 | Sioux City Packers | Western League | , | |
| Jack Meyers | meyers005joh | 1906 | Dartmouth Col | College | , | ||
| Jack Meyers | meyers005joh | 1906 | 6/25-7/7 | Harrisburg Senators | Tri-State League | , | |
| Jack Meyers | meyers005joh | 1906 | 7/11-8/21 | Lancaster Red Roses | Tri-State League | , | |
| Jack Meyers | meyers005joh | 1906 | 8/28-9/15 | Harrisburg Senators | Tri-State League | , | |
| Jack Meyers | 1906 | 32 g. | San Francisco Seals | Pacific Coast League | , | ||
| Maurice Meyers | 1906 | Battle Creek Crickets | Southern Michigan League | , | |||
| Maurice Meyers | 1906 | Kalamazoo White Sox | Southern Michigan League | , | |||
| Frank Michaels | 1906 | Elyria OH | Independent | , | |||
| Frank Michaels | 1906 | Sharon Steels | Ohio-Pennsylvania League | , | |||
| Michel | 1906 | 6/15-7/3 | Manning | South Carolina League | , | ||
| A. L. Middlebrook | middle001a-- | 1906 | 5/8+ | Americus Pallbearers | Georgia State League | , | |
| Middleton | 1906 | +3/17+ | Mercer College | College | , | ||
| Middleton | 1906 | +6/19+ | Valdosta Stars | Georgia State League | , | ||
| Charlie Middleton | middle002cha | 1906 | 100 g. | Boone/Clinton Miners | Iowa League | , | |
| Charlie Middleton | middle002cha | 1906 | Burlington Pathfinders | Iowa League | , | ||
| Midkiff | 1906 | +5/12+ | Morris Harvey C. | College | , | ||
| Midkiff | 1906 | +6/30+ | 6 g. | South Bend Greens | Central League | , | |
| Gus Mier | mier--001gus | 1906 | 13 g. | Mobile Sea Gulls | Cotton States League | , | |
| Clyde Milan | milan-001jes | 1906 | +5/4-7/21 | Shawnee Blues | South Central League | , | |
| Clyde Milan | milan-001jes | 1906 | 7/24-9/23 | Wichita Jobbers | Western Association | , | |
| Albert Milbert | 1906 | PAIndianaNormal | College | , | |||
| Francis Miley | 1906 | Geneva | Empire State League | , | |||
| Miller | 1906 | 5/12 | Dayton Veterans | Central League | , | ||
| Miller | 1906 | +6/15-6/18+ | Albany | Georgia State League | , | ||
| Miller | 1906 | 5/16 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | ||
| Miller | 1906 | 9/8-9/16 | St. Paul Saints | American Association | , | ||
| Al Miller | miller005al- | 1906 | 5/3+ | 11 g. | Bloomington Bloomers | Illinois-Indiana-Iowa League | , |
| Al Miller | miller005al- | 1906 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | ||
| Al. J. Miller | 1906 | +5/16+ | 28 g. | Gulfport Crabs | Cotton States League | , | |
| Arthur Miller | 1906 | 6/7-9/1 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Arthur Miller | 1906 | 9/4-9/12+ | Wheeling Stogies | Central League | , | ||
| Arthur Miller | 1906 | 8/18-8/27 | Jackson Convicts | Southern Michigan League | , | ||
| Charles Miller | 1906 | 8/7-9/15 | Harrisburg Senators | Tri-State League | , | ||
| Doc Miller | miller004roy | 1906 | 6/11-7/4+ | Grand Forks Forkers | Northern-Copper Country League | , | |
| Dusty Miller | miller004cha | 1906 | 6/25-7/23 | Mobile Sea Gulls | Cotton States League | , | |
| Dusty Miller | miller004cha | 1906 | 7/28-9/15 | Nashville Volunteers | Southern Association | , | |
| Dusty Miller | miller001dak | 1906 | 5/4-9/23 | Wichita Jobbers | Western Association | , | |
| Eric Miller | miller021--- | 1906 | Vicksburg Hill Billies | Cotton States League | , | ||
| Fred Miller | miller004fre | 1906 | 38 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| George Miller | miller001geo | 1906 | 4/27-9/24 | Wheeling Stogies | Central League | , | |
| Jacob Miller | miller005jac | 1906 | 23 g. | Wausau Lumberjacks | Wisconsin State League | , | |
| Jim Miller | miller016jam | 1906 | 5/24- | Washington | Pennsylvania-Ohio-Maryland League | , | |
| Joe Miller | 1906 | Umpire | Iowa League | , | |||
| Kohly Miller | miller001koh | 1906 | Terre Haute Hottentots | Central League | , | ||
| Kohly Miller | miller001koh | 1906 | 7/2-9/15 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Leroy Miller | 1906 | Poughkeepsie Colts | Hudson River League | , | |||
| P. G. Miller | 1906 | 5/5 | Oklahoma City Mets | Western Association | , | ||
| Raymond Miller | 1906 | 5/2-5/10 | Lynn Shoemakers | New England League | , | ||
| Raymond Miller | 1906 | 5/31-7/30 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Raymond Miller | 1906 | 8/3 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Raymond Miller | 1906 | 8/11-9/5 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Raymond Miller | 1906 | Pittsburgh College | College | , | |||
| Roscoe Miller | miller001ros | 1906 | 5/2-9/30 | Des Moines Champs | Western League | , | |
| Samuel Miller | miller001sam | 1906 | 5/3-6/1 | Springfield Ponies | Connecticut State League | , | |
| Samuel Miller | miller001sam | 1906 | 8/10-8/23 | Springfield Ponies | Connecticut State League | , | |
| Walter Miller | miller005wal | 1906 | 4/30-9/24 | Grand Rapids Wolverines | Central League | , | |
| Ward Miller | miller002war | 1906 | 70 g. | Waterloo Microbes | Iowa League | , | |
| William Miller | miller003wil | 1906 | 137 g. | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| Pat Millerick | miller002pat | 1906 | 5/10-9/21 | Albany Senators | New York State League | , | |
| Billy Milligan | millig002wil | 1906 | 4/27-9/22 | Buffalo Bisons | Eastern League | , | |
| David Milligan | millig001dav | 1906 | +5/14+ | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Krozer Milliman | 1906 | no g. | Grand Rapids Wolverines | Central League | , | ||
| Krozer Milliman | 1906 | 5/24-7/14 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Krozer Milliman | 1906 | 8/11-9/6 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Mills | 1906 | 47 g. | Freeport Pretzels | Wisconsin State League | , | ||
| Thomas Mills | mills-002tho | 1906 | 47 g. | Freeport Pretzels | Wisconsin State League | , | |
| Thomas Mills | mills-002tho | 1906 | Rockford HS | , | |||
| Arthur Millsap | millsa001art | 1906 | Oklahoma City Mets | Western Association | , | ||
| Larry Milton | milton001sam | 1906 | 5/4-7/11 | Wichita Jobbers | Western Association | , | |
| Larry Milton | milton001sam | 1906 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Larry Milton | milton001sam | 1906 | 8/19-9/23 | Webb City Goldbugs | Western Association | , | |
| Cotton Minahan | minaha001edm | 1906 | 4/20-9/15 | Toledo Mud Hens | American Association | , | |
| Ed Minnehan | 1906 | 5/23-9/18 | Umpire | New York State League | , | ||
| Charles Minor | minor-002c-- | 1906 | 5/6-9/12 | Pueblo Indians | Western League | , | |
| Doggy Minor | 1906 | 5/1-7/2+ | Tulsa Oilers | South Central League | , | ||
| Doggy Minor | 1906 | +7/17-7/20 | Guthrie Senators | South Central League | , | ||
| Mitchell | 1906 | 5/3-7/4 | Valdosta Stars | Georgia State League | , | ||
| Mitchell | 1906 | Madison FL | Independent | , | |||
| Felton Mitchell | mitche001fel | 1906 | 131 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | |
| Felton Mitchell | mitche001fel | 1906 | Evansville River Rats | Central League | , | ||
| Fred Mitchell | mitche005fre | 1906 | 4/29-9/21 | Toronto Maple Leafs | Eastern League | , | |
| Joseph Mitchell | 1906 | +5/27-9/20+ | Tecumseh | Southern Michigan League | , | ||
| Mike Mitchell | mitche002mic | 1906 | Stockton Millers | California League | , | ||
| Mike Mitchell | mitche002mic | 1906 | 164 g. | Portland Beavers | Pacific Coast League | , | |
| Howard Mitinger | 1906 | Penn State Univ. | College | , | |||
| Howard Mitinger | 1906 | Hornell/Patton Pigmies | Interstate League | , | |||
| Carl Mitze | mitze-001car | 1906 | 94 g. | Oskaloosa Quakers | Iowa League | , | |
| Ora Mize | mize--001ora | 1906 | Guthrie Senators | South Central League | , | ||
| Philo Mobley | 1906 | 1 g. | Portland Beavers | Pacific Coast League | , | ||
| Philo Mobley | 1906 | Stockton Millers | California League | , | |||
| Homer Mock | mock--001hom | 1906 | 31 g. | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Homer Mock | mock--001hom | 1906 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Homer Mock | mock--001hom | 1906 | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Modell | 1906 | 7/31 | Webb City Goldbugs | Western Association | , | ||
| Danny Moeller | moelle001dan | 1906-07 | Millikin Univ. | College | , | ||
| Danny Moeller | moelle001dan | 1906 | 8/29-9/23 | Troy Trojans | New York State League | , | |
| Lynn Moffett | 1906 | 7/7-9/8 | Hartford Senators | Connecticut State League | , | ||
| Lynn Moffett | 1906 | 9/11-9/15 | Washington | Pennsylvania-Ohio-Maryland League | , | ||
| Elmer Moffitt | moffit001elm | 1906 | 5/2-9/20 | South Bend Greens | Central League | , | |
| Kitty Mogg | 1906 | +6/11-6/20+ | Mount Clemens Bathers | Southern Michigan League | , | ||
| Kid Mohler | mohler001kid | 1906 | 163 g. | San Francisco Seals | Pacific Coast League | , | |
| Manfred Mohr | mohr--001man | 1906 | 52 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | |
| Manfred Mohr | mohr--001man | 1906 | Oshkosh Indians | Wisconsin State League | , | ||
| Carlton Molesworth | molesw001car | 1906 | 4/11-9/15 | Birmingham Barons | Southern Association | , | |
| Gus Monet | 1906 | +4/29+ | No. Buffalos | Independent | , | ||
| Gus Monet | 1906 | +10/15+ | Buff.-Glasgows | Independent | , | ||
| Roy Monroe | monroe002r-- | 1906 | 5/1-8/5 | Muskogee Indians | South Central League | , | |
| Roy Monroe | monroe002r-- | 1906 | 8/11-9/23 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| George Montague | 1906 | Geneva | Empire State League | , | |||
| Benton Montgomery | 1906 | 5/24-9/15 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Milton Montgomery | montgo001mil | 1906 | 5/24-9/15 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | |
| Roy Montgomery | montgo001roy | 1906 | 4/11-9/15 | Birmingham Barons | Southern Association | , | |
| Harry Moody | moody-001har | 1906 | 5/4- | 110 g. | Oskaloosa Quakers | Iowa League | , |
| Harry Moody | moody-001har | 1906 | Boone/Clinton Miners | Iowa League | , | ||
| Dell Moon | 1906 | Eaton Rapids MI | Independent | , | |||
| Dell Moon | 1906 | 5/31-7/7+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Dell Moon | 1906 | 7/ | Lans.-Oldsmobile | Independent | , | ||
| Mooney | mooney015--- | 1906 | 4/25-5/3 | Temple Boll Weevils | Texas League | , | |
| Moore | 1906 | Troy Trojans | New York State League | , | |||
| Moore | 1906 | 6/11-8/18 | Darlington | South Carolina League | , | ||
| Carl Moore | moore-007car | 1906 | 5/8-7/21 | Shawnee Blues | South Central League | , | |
| Carl Moore | moore-001car | 1906 | Elmira NY | Independent | , | ||
| Earl Moore | moore-001ear | 1906 | 5 g. | Cleveland | American League | Cleveland, OH | |
| Ed Moore | moore-002ed- | 1906 | Sheridan WY | Independent | , | ||
| Eugene Moore | 1906 | 7/19-9/21 | South Bend Greens | Central League | , | ||
| Frank Moore | moore-004geo | 1906 | 4/26-6/16 | Greenville Hunters | Texas League | , | |
| Frank Moore | moore-004geo | 1906 | 6/26-7/20 | St. Paul Saints | American Association | , | |
| Frank Moore | moore-004geo | 1906 | +8/20+ | Duluth White Sox | Northern-Copper Country League | , | |
| Frank Moore | moore-004geo | 1906 | 9/4 | St. Paul Saints | American Association | , | |
| Frederick Moore | moore-001fre | 1906 | -6/30 | 44 g. | Temple Boll Weevils | Texas League | , |
| Frederick Moore | moore-001fre | 1906 | by 7/10 | 49 g. | Mobile Sea Gulls | Cotton States League | , |
| Harry Moore | 1906 | 9/8 | Lynn Shoemakers | New England League | , | ||
| James Moore | 1906 | 8/29-8/30 | Lowell Tigers | New England League | , | ||
| John Moore | moore-009joh | 1906 | 86 g. | Oshkosh Indians | Wisconsin State League | , | |
| John Moore | 1906 | Oil City-Jamestown Oseejays | Interstate League | , | |||
| John Moore | 1906 | 5/24-9/15 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| John Moore | 1906 | 4/26-5/12 | Jersey City Skeeters | Eastern League | , | ||
| Joseph Moore | 1906 | 4/27-5/10 | Portsmouth Truckers | Virginia League | , | ||
| Joseph Moore | 1906 | 5/26-6/11 | Umpire | Virginia League | , | ||
| Mose Moore | moore-001edw | 1906 | Alameda | California State League | , | ||
| Paul Moore | moore-001pau | 1906 | Lans-Oldsmobile | Independent | , | ||
| Paul Moore | moore-001pau | 1906 | +9/8-9/23 | Jackson Convicts | Southern Michigan League | , | |
| Shef Moore | moore-001s-- | 1906 | 4/20-8/30 | Augusta Tourists | South Atlantic League | , | |
| Shef Moore | moore-001s-- | 1906 | 9/6-9/8 | Danville Red Sox | Virginia League | , | |
| Snake Moore | 1906 | 23 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | ||
| W. Moore | 1906 | 8/6 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Wade Moore | moore-001wad | 1906 | 103 g. | Galveston Sand Crabs | South Texas League | , | |
| William Moore | 1906 | +5/3-5/29+ | Villanova Col. | College | , | ||
| William Moore | 1906 | 6/19-7/26 | Fall River Indians | New England League | , | ||
| James Moorhead | moorhe001jam | 1906 | 4/27-9/8 | Fall River Indians | New England League | , | |
| Moran | 1906 | 5/10-5/11 | Syracuse Stars | New York State League | , | ||
| Moran | 1906 | 9/13-9/15 | Shreveport Pirates | Southern Association | , | ||
| Augie Moran | moran-002aug | 1906 | 4/26-9/22 | Umpire | Eastern League | , | |
| Charles Moran | moran-003cha | 1906 | 4/27-9/22 | Rochester Bronchos | Eastern League | , | |
| Charlie Moran | moran-002cha | 1906 | 5/4-9/3 | Cleburne Railroaders | Texas League | , | |
| Herbie Moran | moran-002joh | 1906 | DuBois Miners | Interstate League | , | ||
| Roy Moran | 1906 | 134 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | ||
| Roy Moran | 1906 | a few g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | ||
| Forrest More | more--001for | 1906 | 5/5-9/15 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Lew Moren | moren-001lew | 1906 | 4/27-9/22 | Jersey City Skeeters | Eastern League | , | |
| Amos Morgan | morgan001amo | 1906 | 5/4-7/8 | Denver Grizzlies | Western League | , | |
| Amos Morgan | morgan001amo | 1906 | 7/18-9/29 | Pueblo Indians | Western League | , | |
| Charles Morgan | 1906 | Keokuk Indians | Iowa League | , | |||
| Cy Morgan | morgan003har | 1906 | 4/22-9/15 | St. Paul Saints | American Association | , | |
| James Morgan | morgan001rus | 1906 | 5/24-6/7 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| James Morgan | morgan001rus | 1906 | 7/2-9/15 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| Louis Morgan | morgan001lou | 1906 | 15 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| Red Morgan | morgan003jam | 1906 | Georgetown Univ | College | , | ||
| Red Morgan | morgan003jam | 1906 | 6/20-10/6 | Boston | American League | Boston, MA | |
| William Morgan | 1906 | 28 g. | Portsmouth Truckers | Virginia League | , | ||
| Moriarty | 1906 | +7/28+ | Lowell Tigers | New England League | , | ||
| Bill Moriarty | moriar002wil | 1906 | 120 g. | Freeport Pretzels | Wisconsin State League | , | |
| Ed Moriarty | moriar001edw | 1906 | McGill Univ. | College | , | ||
| Ed Moriarty | moriar001edw | 1906 | 6/26-9/20 | Newark Sailors | Eastern League | , | |
| George Moriarty | moriar003geo | 1906 | New York | American League | New York, NY | ||
| Jim Moroney | morone002jam | 1906 | no g. | Toronto Maple Leafs | Eastern League | , | |
| Jim Moroney | morone002jam | 1906 | 4/24- | 3 g. | Boston | National League | Boston, MA |
| Jim Moroney | morone002jam | 1906 | 5/14-9/8 | Lowell Tigers | New England League | , | |
| Clarence Morris | 1906 | 8/12-9/3 | Waco Navigators | Texas League | , | ||
| Kid Morris | morris010wil | 1906 | no g. | Waterbury Authors | Connecticut State League | , | |
| Samuel Morris | morris001ed- | 1906 | 5/6-5/10 | Joplin Miners | Western Association | , | |
| Samuel Morris | morris001ed- | 1906 | 6/4, 7/28 | Joplin Miners | Western Association | , | |
| Walter Morris | morris010joh | 1906 | 5/2-8/1 | Charleston Sea Gulls | South Atlantic League | , | |
| Walter Morris | morris010joh | 1906 | 8/2-9/3 | Savannah Indians | South Atlantic League | , | |
| Bill Morrison | morris008wil | 1906 | 5/4-7/14 | Pueblo Indians | Western League | , | |
| Bill Morrison | morris008wil | 1906 | 7/21-7/24 | Omaha Rourkes | Western League | , | |
| John Morrison | morris015joh | 1906 | 5/19-9/3 | Calumet Aristocrats | Northern-Copper Country League | , | |
| Chester Morrissey | 1906 | +9/3+ | Elmira NY | Independent | , | ||
| Frank Morrissey | morris003mic | 1906 | 5/2-8/15 | New Bedford Whalers | New England League | , | |
| Jack Morrissey | morris016joh | 1906 | Grand Rapids Wolverines | Central League | , | ||
| William Morrow | morrow002wil | 1906 | 5/3- | Parsons Preachers | Kansas State League | , | |
| William Morrow | morrow002wil | 1906 | 5/17-6/20 | Mobile Sea Gulls | Cotton States League | , | |
| Charles Morse | morse-001cha | 1906 | 4/28 | Manchester Textiles | New England League | , | |
| Clarence Morse | 1906 | U. Nebraska | College | , | |||
| Clarence Morse | 1906 | Lincoln Ducklings | Western League | , | |||
| Frank Morse | morse-001fra | 1906 | 4/11-9/15 | Atlanta Crackers | Southern Association | , | |
| Pete Morton | morton001pet | 1906 | 5/19-6/16+ | Duluth White Sox | Northern-Copper Country League | , | |
| Pete Morton | morton001pet | 1906 | Hibbling MN | Independent | , | ||
| Pete Morton | morton001pet | 1906 | Fessenden ND | Independent | , | ||
| Walter Moser | moser-001wal | 1906 | 4/26-8/21 | Lynchburg Shoemakers | Virginia League | , | |
| Walter Moser | moser-001wal | 1906 | 9/3- | 6 g. | Philadelphia | National League | Philadelphia, PA |
| Moses | 1906 | Univ. Virginia | College | , | |||
| Moses | 1906 | 6/19-6/29 | Camden | South Carolina League | , | ||
| Moses | 1906 | 8/8 | Orangeburg | South Carolina League | , | ||
| Ernest Mosier | 1906 | Nashville Volunteers | Southern Association | , | |||
| Doc Moskiman | moskim001wil | 1906 | Stockton Millers | California League | , | ||
| Doc Moskiman | moskim001wil | 1906 | 4/26-9/22 | Jersey City Skeeters | Eastern League | , | |
| Doc Moskiman | moskim001wil | 1906 | Oakland Oaks | Pacific Coast League | , | ||
| Charles Moss | moss--003cha | 1906 | 5/11-8/11 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Virgil Moss | 1906 | Webb City Goldbugs | Western Association | , | |||
| Anson Mott | mott--002ans | 1906 | 182 g. | Seattle Siwashes | Pacific Coast League | , | |
| Martin Moughan | 1906 | 9/10 | Scranton Miners | New York State League | , | ||
| Banks Moulder | moulde001ban | 1906 | 5/16 | Temple Boll Weevils | Texas League | , | |
| Mike Mowrey | mowrey001har | 1906 | 21 g. | Cincinnati | National League | Cincinnati, OH | |
| Mike Mowrey | mowrey001har | 1906 | 6/7-8/24 | Baltimore Orioles | Eastern League | , | |
| Joseph Mowry | mowrey001jos | 1906 | 4/28-9/3 | Houston Buffaloes | South Texas League | , | |
| Joseph Mowry | mowrey001jos | 1906 | 9/17-9/30 | Des Moines Champs | Western League | , | |
| Carrie Moyer | 1906 | Keystone Jr. Col. | College | , | |||
| Carrie Moyer | 1906 | 8/ | Allentown-Moxie | Independent | , | ||
| Jimmy Moynihan | 1906 | Buffalo City League | , | ||||
| Mueller | 1906 | 5/25 | Dayton Veterans | Central League | , | ||
| Arthur Mueller | 1906 | Newark Sailors | Eastern League | , | |||
| Walter Mueller | muelle002wal | 1906 | 5/30- | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| Walter Mueller | muelle002wal | 1906 | 21 g. | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| Matthew Muldowney | 1906 | 36 g. | Sharon Steels | Ohio-Pennsylvania League | , | ||
| John Mulgrew | 1906 | 6/20-6/26 | Lancaster Red Roses | Tri-State League | , | ||
| John Mulgrew | 1906 | 7/6-9/8 | Waterbury Authors | Connecticut State League | , | ||
| Cy Mulkey | mulkey001cyr | 1906 | Austin College | College | , | ||
| Frank Mullane | mullan001fra | 1906 | Minn.- | Independent | , | ||
| Dominic Mullaney | mullan002dom | 1906 | 4/11-9/15 | Montgomery Senators | Southern Association | , | |
| Ed Mullaney | mullan001edw | 1906 | 4/28-8/25 | New Bedford Whalers | New England League | , | |
| Jim Mullen | mullin001jam | 1906 | 4/26-9/22 | Baltimore Orioles | Eastern League | , | |
| John Mullen | 1906 | 5/24-9/15 | Umpire | Pennsylvania-Ohio-Maryland League | , | ||
| Otho Mullen | mullen010--- | 1906 | +5/12+ | Owensboro KY | Independent | , | |
| Max Muller | muller002max | 1906 | Sacramento Cordovas | California League | , | ||
| Walter Muller | 1906 | 5/15 | Little Rock Travelers | Southern Association | , | ||
| Mullin | 1906 | 8/16-8/17 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| John Mullin | mullin001joh | 1906 | 4/26-5/10 | Holyoke Paperweights | Connecticut State League | , | |
| John Mullin | mullin001joh | 1906 | 6/15-7/12 | Jacksonville Jays | South Atlantic League | , | |
| John Mullin | mullin001joh | 1906 | 7/18-9/3 | Charleston Sea Gulls | South Atlantic League | , | |
| Thomas Mulvey | 1906 | 9/3 | Providence Grays | Eastern League | , | ||
| Gustave Munch | 1906 | New York | American League | New York, NY | |||
| Red Munson | munson001cla | 1906 | 4/28 | Jersey City Skeeters | Eastern League | , | |
| Red Munson | munson001cla | 1906 | 7/28-9/3 | Augusta Tourists | South Atlantic League | , | |
| Red Munson | munson001cla | 1906 | -9/29 | 9 g. | Akron Rubbernecks | Ohio-Pennsylvania League | , |
| Red Murch | murch-001rob | 1906 | 4/19-8/18 | Gulfport Crabs | Cotton States League | , | |
| Red Murch | murch-001rob | 1906 | 8/21-9/15 | Montgomery Senators | Southern Association | , | |
| Simmy Murch | murch-001sim | 1906 | 4/27-9/8 | Manchester Textiles | New England League | , | |
| Wilbur Murdoch | murdoc001wil | 1906 | 4/16-9/3 | Macon Brigands | South Atlantic League | , | |
| Tim Murnane | murnan001tim | 1906 | President | New England League | , | ||
| Murphy | 1906 | 5 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Murphy | 1906 | 12 g. | Johnstown Johnnies | Tri-State League | , | ||
| Murphy | 1906 | +7/2+ | Ottawa | Northern Independent League | , | ||
| Dan Murphy | 1906 | 4/25-6/16+ | Waco Navigators | Texas League | , | ||
| Dave Murphy | murphy001dav | 1906 | 5/10-5/21 | Albany Senators | New York State League | , | |
| Dave Murphy | murphy001dav | 1906 | 6/21-8/23 | Lawrence Colts | New England League | , | |
| Ed Murphy | murphy005edw | 1906 | 5/29-9/15 | Washington | Pennsylvania-Ohio-Maryland League | , | |
| Edward Murphy | murphy003edw | 1906 | 4/25-5/29 | Johnstown Johnnies | Tri-State League | , | |
| Edward Murphy | murphy003edw | 1906 | 6/4-9/29 | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Frank Murphy | murphy004fra | 1906 | 5/11-6/29 | Hartford Senators | Connecticut State League | , | |
| Frank Murphy | murphy002fra | 1906 | Munson | Independent | , | ||
| Frank Murphy | murphy002fra | 1906 | 6/7-6/28 | Springfield Ponies | Connecticut State League | , | |
| Howard Murphy | murphy001how | 1906 | 4/18-5/15 | Louisville Colonels | American Association | , | |
| Howard Murphy | murphy001how | 1906 | 84 g. | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Howard Murphy | murphy001how | 1906 | 9/4-9/16 | Louisville Colonels | American Association | , | |
| John Murphy | murphy015joh | 1906 | Oswego | Empire State League | , | ||
| Pat Murphy | murphy076--- | 1906 | Eureka Springs | Independent | , | ||
| Pat Murphy | murphy076--- | 1906 | 6/27-7/9 | Coffeyville Bricks | Kansas State League | , | |
| Pat Murphy | murphy076--- | 1906 | 7/13 | Chanute Browns | Kansas State League | , | |
| Pat Murphy | murphy076--- | 1906 | +7/17-7/30+ | Bartlesville Indians | Kansas State League | , | |
| Pat Murphy | murphy076--- | 1906 | Pawnee OK | Independent | , | ||
| Patrick Murphy | murphy003pat | 1906 | 41 g. | Bridgeport Orators | Connecticut State League | , | |
| Tucker Murphy | 1906 | 5/2-8/24 | Lowell Tigers | New England League | , | ||
| Murray | 1906 | 5/25-5/28 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | ||
| Murray | 1906 | 8/14-8/18 | Manning | South Carolina League | , | ||
| Alexander Murray | murray001ale | 1906 | 5/10-9/23 | Syracuse Stars | New York State League | , | |
| Billy Murray | murray007wil | 1906 | 4/26-9/23 | Jersey City Skeeters | Eastern League | , | |
| Ernest Murray | murray001ern | 1906 | 5/12-8/12 | Scranton Miners | New York State League | , | |
| Ernest Murray | murray001ern | 1906 | 8/19-9/23 | Binghamton Bingoes | New York State League | , | |
| James Murray | murray007jam | 1906 | Paterson Intruders | Hudson River League | , | ||
| James Murray | 1906 | 6/2- | Umpire | Tri-State League | , | ||
| Jim Murray | murray008jam | 1906 | 4/26-9/22 | Buffalo Bisons | Eastern League | , | |
| John Murray | murray012joh | 1906 | Geneva | Empire State League | , | ||
| John Murray | murray002j-- | 1906 | 5/4-5/14 | Topeka White Sox | Western Association | , | |
| John Murray | murray002j-- | 1906 | 5/20-9/23 | Springfield Midgets | Western Association | , | |
| Red Murray | murray002joh | 1906 | 6/16- | 46 g. | St. Louis | National League | St. Louis, MO |
| Red Murray | 1906 | 8/7-9/23 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| Thomas Murray | 1906 | 6/4-6/28 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Thomas Murray | 1906 | 7/16-9/15 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| Marvin Murrow | 1906 | 6/11-8/18 | Camden | South Carolina League | , | ||
| Casper Musselman | 1906 | Lehigh Univ. | College | , | |||
| Casper Musselman | 1906 | Catasauqua PA | Independent | , | |||
| William Mutter | mutter001wil | 1906 | 97 g. | Calumet Aristocrats | Northern-Copper Country League | , | |
| Myers | 1906 | +7/19+ | Guthrie Senators | South Central League | , | ||
| Myers | 1906 | 9/16 | South Bend Greens | Central League | , | ||
| Bade Myers | myers-002wil | 1906 | 4/27-9/25 | Canton Chinamen | Central League | , | |
| Harry Myers | 1906 | 40 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | ||
| Harry Myers | 1906 | -9/29 | 11 g. | Sharon Steels | Ohio-Pennsylvania League | , | |
| Harry Myers | 1906 | 5/31-6/4 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| John Myers | meyers004joh | 1906 | 4/28-9/25 | Canton Chinamen | Central League | , | |
| John Myers | myers-006joh | 1906 | San Francisco Orphans | California League | , | ||
| Joseph Myers | myers-002jos | 1906 | 4/25-9/14 | York Penn Parks | Tri-State League | , | |
| Tommy Mylett | mylett002tho | 1906 | 7/26-7/27 | Lancaster Red Roses | Tri-State League | , | |
| Tommy Mylett | mylett002tho | 1906 | 7/28-7/30 | Altoona Mountaineers | Tri-State League | , | |
| Tommy Mylett | mylett002tho | 1906 | 8/14-8/25 | Albany Senators | New York State League | , | |
| Tommy Mylett | mylett002tho | 1906 | 8/30-9/5 | Wilkes-Barre Barons | New York State League | , | |
| Phil Nadeau | nadeau001phi | 1906 | 4/12-4/26 | New Orleans Pelicans | Southern Association | , | |
| Phil Nadeau | nadeau001phi | 1906 | 4/29-9/15 | Memphis Egyptians | Southern Association | , | |
| Andrew Nagle | nagle-001and | 1906 | 4/26-6/22 | Springfield Ponies | Connecticut State League | , | |
| Andrew Nagle | nagle-001and | 1906 | -7/19 | 18 g. | Sharon Steels | Ohio-Pennsylvania League | , |
| Paul Nagle | nagle-001lef | 1906 | 7/18-9/3 | Grays Harbor Lumbermen | Northwestern League | , | |
| Richard Nallin | nallin001ric | 1906 | 5/23-9/29 | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| William Nance | nance-001wil | 1906 | 4/18-9/16 | Toledo Mud Hens | American Association | , | |
| John Nash | nash--001joh | 1906 | 5/5-7/11 | Wichita Jobbers | Western Association | , | |
| Billy Nattress | nattre001wil | 1906 | 4/26-9/22 | Buffalo Bisons | Eastern League | , | |
| Harry Neal | 1906 | +6/20-7/9+ | Jackson Convicts | Southern Michigan League | , | ||
| Harry Neal | 1906 | 7/22-8/9+ | Saginaw | Southern Michigan League | , | ||
| Offa Neal | neal--002the | 1906 | 5/17-5/21 | Altoona Mountaineers | Tri-State League | , | |
| Offa Neal | neal--002the | 1906 | 5/23 | Johnstown Johnnies | Tri-State League | , | |
| Offa Neal | neal--002the | 1906 | 5/24-6/15 | Providence Grays | Eastern League | , | |
| Offa Neal | neal--002the | 1906 | 6/17-6/22 | Columbus Senators | American Association | , | |
| William Neal | neal--002wil | 1906 | 5/9-7/27 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| E. M. Nealy | 1906 | no g. | Richmond Colts | Virginia League | , | ||
| Richard Nebinger | 1906 | +7/4+ | Williamstown | Independent | , | ||
| Richard Nebinger | 1906 | +8/12+ | Union Station | Independent | , | ||
| John Nee | 1906 | +7/29+ | Bolivar MO | Independent | , | ||
| George Needham | needha001geo | 1906 | 4/16-9/3 | Columbia Gamecocks | South Atlantic League | , | |
| Tom Needham | needha001tho | 1906 | Boston | National League | Boston, MA | ||
| Lloyd Nefeau | nefeau001llo | 1906 | 4/12-4/17 | Little Rock Travelers | Southern Association | , | |
| Lloyd Nefeau | nefeau001llo | 1906 | DuBois Miners | Interstate League | , | ||
| Edward Nehr | neher-001ed- | 1906 | Hibbling MN | Independent | , | ||
| Edward Nehr | neher-001ed- | 1906 | +5/29-5/30+ | Fargo | Northern-Copper Country League | , | |
| Fred Nehring | nehrin001fre | 1906 | 4/28-9/3 | Grays Harbor Lumbermen | Northwestern League | , | |
| Cecil Neighbors | neighb001fle | 1906 | 121 g. | Burlington Pathfinders | Iowa League | , | |
| Neild | 1906 | 8/27-8/28 | Holyoke Paperweights | Connecticut State League | , | ||
| Frank Neild | 1906 | Williams College | College | , | |||
| Fred Neiman | neiman001fre | 1906 | Independent | , | |||
| Fred Neiman | neiman001fre | 1906 | 7/8-9/9 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Clarence Nelson | nelson001cla | 1906 | 24 g. | Houston Buffaloes | South Texas League | , | |
| Clarence Nelson | nelson001cla | 1906 | 7/19-9/23 | Oklahoma City Mets | Western Association | , | |
| Harry Nelson | 1906 | Alameda Grays | California League | , | |||
| J. W. Nelson | 1906 | 7/24-8/16 | Rochester Bronchos | Eastern League | , | ||
| Red Nelson | nelson002alb | 1906 | Des Moines Champs | Western League | , | ||
| Red Nelson | nelson002alb | 1906 | Topeka White Sox | Western Association | , | ||
| William Nelson | nelson004wil | 1906 | 8/11-8/17 | Galveston Sand Crabs | South Texas League | , | |
| Charles Nesbit | 1906 | Wash. & Jefferson | College | , | |||
| Charles Nesbit | 1906 | 5/24- | Washington | Pennsylvania-Ohio-Maryland League | , | ||
| Harry Nesbitt | 1906 | 7/14-7/20 | Lowell Tigers | New England League | , | ||
| Joseph Netolicky | 1906 | +6/23-7/12+ | Maquoketa | Independent | , | ||
| Archibald Neuschafer | 1906 | 5/17-7/31+ | Jackson Convicts | Southern Michigan League | , | ||
| Archibald Neuschafer | 1906 | +9/1-9/23 | Mount Clemens Bathers | Southern Michigan League | , | ||
| Charles Neutzling | 1906 | Pomeroy OH | Independent | , | |||
| Neville | 1906 | 5/1-5/13 | Muskogee Indians | South Central League | , | ||
| Neville | 1906 | 5/1-5/13 | Muskogee Indians | South Central League | , | ||
| Leo Nevitt | 1906 | Univ. Nebraska | College | , | |||
| Newbar | 1906 | +5/30+ | All-Chicago | Independent | , | ||
| Frank Newberry | 1906 | Lafayette Col. | College | , | |||
| Frank Newberry | 1906 | Wilkes-Barre Barons | New York State League | , | |||
| Ray Newcomb | 1906 | Midland MI | Independent | , | |||
| Ray Newcomb | 1906 | Bay City MI | Independent | , | |||
| Royal Newcomb | newcom001roy | 1906 | 50 g. | Lake Linden Sandy Cities | Northern-Copper Country League | , | |
| Charley Newell | 1906 | U. Oklahoma | College | , | |||
| Charley Newell | 1906 | 7/11-7/14+ | Shawnee Blues | South Central League | , | ||
| Frank Newhouse | 1906 | +6/14-8/17 | Umpire | Virginia League | , | ||
| Frank Newhouse | 1906 | CO School of Mines | College | , | |||
| P. H. Newkirk | 1906 | 5/5-6/22+ | Americus Pallbearers | Georgia State League | , | ||
| Otto Newlin | newlin001ott | 1906 | 5/5-7/3 | Little Rock Travelers | Southern Association | , | |
| Otto Newlin | newlin001ott | 1906 | 7/18-9/28 | Sioux City Packers | Western League | , | |
| Arthur Newman | newman001art | 1906 | 5/5 | Bridgeport Orators | Connecticut State League | , | |
| John Newman | newman001joh | 1906 | Chic.-Indep | Independent | , | ||
| Harry Newmeyer | newmey001har | 1906 | 5/3 | Sioux City Packers | Western League | , | |
| Pat Newnam | newnam001pat | 1906 | 125 g. | Houston Buffaloes | South Texas League | , | |
| Al Newnham | newnha001alf | 1906 | 4/16-8/20 | Jacksonville Jays | South Atlantic League | , | |
| Al Newnham | newnha001alf | 1906 | DuBois Miners | Interstate League | , | ||
| Tom News | news--001tho | 1906 | Bradford Drillers | Interstate League | , | ||
| Albert Newton | newton001alb | 1906 | 5/2-9/14 | Sioux City Packers | Western League | , | |
| Doc Newton | newton001eus | 1906 | 21 g. | New York | American League | New York, NY | |
| Eugene Newton | 1906 | 5/31-6/8 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Tom? Newton | 1906 | 8/23-9/6 | Terre Haute Hottentots | Central League | , | ||
| J. Wesley Nicholls | nichol001j-- | 1906 | 3 g. | Temple Boll Weevils | Texas League | , | |
| J. Wesley Nicholls | nichol001j-- | 1906 | 5/14-5/17 | Temple Boll Weevils | Texas League | , | |
| Simon Nicholls | nichol001sim | 1906 | 4/12-9/15 | Memphis Egyptians | Southern Association | , | |
| Simon Nicholls | nichol001sim | 1906 | 12 g. | Philadelphia | American League | Philadelphia, PA | |
| Nichols | 1906 | 5/1-7/14+ | Shawnee Blues | South Central League | , | ||
| Nichols | 1906 | +8/1-8/7+ | South McAlester Miners | South Central League | , | ||
| Nichols | 1906 | 6/16-6/19 | Little Rock Travelers | Southern Association | , | ||
| Art Nichols | nichol001art | 1906 | 4/26-9/6 | Waterbury Authors | Connecticut State League | , | |
| Charles Nichols | 1906 | +6/19+ | 9 g. | Bartlesville Indians | Kansas State League | , | |
| E. O. Nichols | 1906 | Guthrie Senators | South Central League | , | |||
| J. Nichols | 1906-09 | Villanova College | College | , | |||
| J. Nichols | 1906 | 6/26-6/30 | Springfield Ponies | Connecticut State League | , | ||
| J. Nichols | 1906 | 8/10 | Springfield Ponies | Connecticut State League | , | ||
| James Nichols | 1906 | Rockville CT | Independent | , | |||
| Joseph Nichols | 1906 | 12 g. | Portsmouth Truckers | Virginia League | , | ||
| Tom Nicholson | 1906 | Guthrie Senators | South Central League | , | |||
| Al Nickell | nickel001al- | 1906 | 5/1-7/30+ | Muskogee Indians | South Central League | , | |
| Harry Nickens | nicken001har | 1906 | 4/18 | Jacksonville Jays | South Atlantic League | , | |
| Harry Nickens | nicken001har | 1906 | 4/26-5/3 | Macon Brigands | South Atlantic League | , | |
| Harry Nickens | nicken001har | 1906 | 24 g. | Jackson Senators | Cotton States League | , | |
| Harry Nickens | nicken001har | 1906 | Gulfport Crabs | Cotton States League | , | ||
| Tom Niland | niland001tom | 1906 | +5/26-7/28+ | Lynn MA | Independent | , | |
| Tom Niland | niland001tom | 1906 | 8/29-9/1 | Lynn Shoemakers | New England League | , | |
| Harry Niles | niles-001her | 1906 | 4/24- | 142 g. | St. Louis | American League | St. Louis, MO |
| George Nill | nill--001geo | 1906 | 89 g. | Washington | American League | Washington, DC | |
| Nilssen | 1906 | U. Nebraska | College | , | |||
| Nilssen | 1906 | +4/29+ | Omah.-Lee-Glass | Independent | , | ||
| Nilssen | 1906 | 6/10 | Lincoln Ducklings | Western League | , | ||
| Nilssen | 1906 | 7/24 | Omaha Rourkes | Western League | , | ||
| Albert Ninham | 1906 | +6/27-9/25+ | Nebraska Indians | Independent | , | ||
| Bernard Nippert | nipper001ben | 1906 | Augusta Tourists | South Atlantic League | , | ||
| Bernard Nippert | nipper001ben | 1906 | 45 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| Ed Nist | nist--001ed- | 1906 | +5/9-7/25+ | Muskogee Indians | South Central League | , | |
| Bert Noblett | noblet001j-- | 1906 | Mississippi State | College | , | ||
| Bert Noblett | noblet001j-- | 1906 | 5/7-5/17 | Montgomery Senators | Southern Association | , | |
| Bert Noblett | noblet001j-- | 1906 | 5/18-8/6 | Little Rock Travelers | Southern Association | , | |
| George Noblit | noblit001geo | 1906 | 5/2-10/1 | Sioux City Packers | Western League | , | |
| Rufus Nolley | nolley001ruf | 1906 | 5/29-7/7 | Albany | Georgia State League | , | |
| Rufus Nolley | nolley001ruf | 1906 | 7/20-8/9 | Sumter Game Cocks | South Carolina League | , | |
| Rufus Nolley | nolley001ruf | 1906 | 8/16 | Camden | South Carolina League | , | |
| Rufus Nolley | nolley001ruf | 1906 | 9/7-9/10 | Montgomery Senators | Southern Association | , | |
| Edward Nolte | 1906 | 4/30-9/8 | New Haven Blues | Connecticut State League | , | ||
| Pete Noonan | noonan001pet | 1906 | Auburn | Empire State League | , | ||
| Pete Noonan | noonan001pet | 1906 | Chicago | National League | Chicago, IL | ||
| Pete Noonan | noonan001pet | 1906 | St. Louis | National League | St. Louis, MO | ||
| Jerry Nops | nops--001jer | 1906 | 5/16-5/31 | Providence Grays | Eastern League | , | |
| Jerry Nops | nops--001jer | 1906 | 7/21- | Rutland | Northern Independent League | , | |
| Jerry Nops | nops--001jer | 1906 | 9/14-9/20 | Providence Grays | Eastern League | , | |
| Alex Norcabbage | norcab001ale | 1906 | +9/3+ | Jackson Convicts | Southern Michigan League | , | |
| Frank Norcom | norcom001fra | 1906 | 4/16-8/28 | Augusta Tourists | South Atlantic League | , | |
| Frank Norcom | norcom001fra | 1906 | 9/15 | Nashville Volunteers | Southern Association | , | |
| Lou Nordyke | nordyk001lou | 1906 | 4/18-6/27 | St. Louis | American League | St. Louis, MO | |
| Lou Nordyke | nordyk001lou | 1906 | 7/13-7/17 | St. Paul Saints | American Association | , | |
| A. H. Northcutt | northc001a-- | 1906 | 6/12 | Independence Coyotes | Kansas State League | , | |
| Norton | 1906 | Battle Creek Crickets | Southern Michigan League | , | |||
| Jim Novacek | novace001jam | 1906 | 5/3-9/16 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Nowotny | 1906 | 6/13-6/20 | Temple Boll Weevils | Texas League | , | ||
| Edwin Noyes | noyes-001edw | 1906 | 5/4-9/23 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Harry Noyes | noyes-001har | 1906 | 4/26-9/8 | Hartford Senators | Connecticut State League | , | |
| Eddie Nugent | 1906 | +6/13-8/24+ | Fulton | Empire State League | , | ||
| Jack Nugent | nugent001joh | 1906 | Hornellsville NY | , | |||
| Jack Nugent | nugent001joh | 1906 | Hornell/Patton Pigmies | Interstate League | , | ||
| Lewis Nunley | 1906 | 5/16-7/7 | Albany | Georgia State League | , | ||
| Martin Nye | nye---001mar | 1906 | 4/30-5/2 | Evansville River Rats | Central League | , | |
| Martin Nye | nye---001mar | 1906 | 5/3- | Erie Sailors | Interstate League | , | |
| Martin Nye | nye---001mar | 1906 | +9/5-9/18+ | Tecumseh | Southern Michigan League | , | |
| O'Brien | 1906 | 5/21 | Roanoke Tigers | Virginia League | , | ||
| Danny O'Brien | 1906 | 14 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| Danny O'Brien | 1906 | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | |||
| Frank O'Brien | obrien003fra | 1906 | 24 g. | San Francisco Seals | Pacific Coast League | , | |
| Frank O'Brien | obrien003fra | 1906 | Fresno Raisin Eaters | Pacific Coast League | , | ||
| Hugh O'Brien | obrien001h-- | 1906 | 113 g. | Gulfport Crabs | Cotton States League | , | |
| Hugh O'Brien | obrien001h-- | 1906 | Mobile Sea Gulls | Cotton States League | , | ||
| Jack O'Brien | obrien005joh | 1906 | 5/11-9/4 | Troy Trojans | New York State League | , | |
| Jack O'Brien | 1906 | 5/1-6/8 | Portsmouth Truckers | Virginia League | , | ||
| Jack O'Brien | 1906 | 7/11-8/18 | Sumter Game Cocks | South Carolina League | , | ||
| Jack O'Brien | 1906 | 8/21-8/22 | Norfolk Tars | Virginia League | , | ||
| James O'Brien | obrien004jam | 1906 | 4/26-7/9 | Rochester Bronchos | Eastern League | , | |
| James O'Brien | obrien004jam | 1906 | 7/12-9/17 | Toronto Maple Leafs | Eastern League | , | |
| John O'Brien | obrien009joh | 1906 | 4/27-9/8 | Umpire | New England League | , | |
| Michael O'Brien | 1906 | Dartmouth Col. | College | , | |||
| Michael O'Brien | 1906 | Rochester NH | Independent | , | |||
| Michael O'Brien | 1906 | 7/19-8/17 | Binghamton Bingoes | New York State League | , | ||
| Mickey O'Brien | 1906 | 113 g. | Gulfport Crabs | Cotton States League | , | ||
| Mickey O'Brien | 1906 | Mobile Sea Gulls | Cotton States League | , | |||
| Pete O'Brien | obrien001pet | 1906 | 151 g. | St. Louis | American League | St. Louis, MO | |
| Thomas O'Brien | obrien002t-- | 1906 | 9/1-9/15 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Thomas O'Brien | 1906 | 4/18-5/28 | Charleston Sea Gulls | South Atlantic League | , | ||
| Thomas O'Brien | 1906 | 5/31-7/6 | Jacksonville Jays | South Atlantic League | , | ||
| William O'Brien | obrien007wil | 1906 | 140 g. | New Orleans Pelicans | Southern Association | , | |
| Jack O'Connell | 1906 | 53 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Jack O'Connell | 1906 | Umpire | Illinois-Indiana-Iowa League | , | |||
| Jack O'Connell | 1906 | Shelbyville TN | Independent | , | |||
| O'Connor | 1906 | Newburgh Hill Climbers | Hudson River League | , | |||
| A. O'Connor | 1906 | DuBois Miners | Interstate League | , | |||
| Andy O'Connor | oconno002and | 1906 | 5/12-7/3 | Syracuse Stars | New York State League | , | |
| Andy O'Connor | oconno002and | 1906 | Auburn | Empire State League | , | ||
| Edward O'Connor | 1906 | 117 ab | Poughkeepsie Colts | Hudson River League | , | ||
| Jack O'Connor | oconno006joh | 1906 | St. Louis | American League | St. Louis, MO | ||
| Paddy O'Connor | oconno004pat | 1906 | 5/1-9/8 | Springfield Ponies | Connecticut State League | , | |
| Patrick O'Connor | oconno003pat | 1906 | 5/3-9/9 | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Royes O'Connor | oconno001roy | 1906 | Hornell/Patton Pigmies | Interstate League | , | ||
| O'Dea | 1906 | 49 g. | Wausau Lumberjacks | Wisconsin State League | , | ||
| Artie O'Dea | odea--001art | 1906 | 5/19-9/3 | Duluth White Sox | Northern-Copper Country League | , | |
| Alfred O'Dell | odell-002alf | 1906 | 65 g. | Bridgeport Orators | Connecticut State League | , | |
| Alfred O'Dell | odell-002alf | 1906 | 7/19-9/15 | Lancaster Red Roses | Tri-State League | , | |
| Herbert O'Drain | 1906 | Holy Cross Col | College | , | |||
| Herbert O'Drain | 1906 | 7/16 | York Penn Parks | Tri-State League | , | ||
| Martin O'Gara | ogara-001mar | 1906 | 4/27-5/1 | Lancaster Red Roses | Tri-State League | , | |
| Martin O'Gara | ogara-001mar | 1906 | 5/7-6/9 | New Bedford Whalers | New England League | , | |
| Martin O'Gara | ogara-001mar | 1906 | 7/19 | Bridgeport Orators | Connecticut State League | , | |
| Hal O'Hagan | ohagen001har | 1906 | 5/1-9/8 | Waterbury Authors | Connecticut State League | , | |
| Joseph O'Halloran | 1906 | 4/26-5/8 | Portsmouth Truckers | Virginia League | , | ||
| Joseph O'Halloran | 1906 | Glassboro NJ | Independent | , | |||
| Bill O'Hara | ohara-002wil | 1906 | 4/26-9/22 | Baltimore Orioles | Eastern League | , | |
| Dennis O'Hara | ohara-001den | 1906 | +6/4+ | Fall River Indians | New England League | , | |
| Kid O'Hara | ohara-001jam | 1906 | Georgetown Col. | College | , | ||
| Kid O'Hara | ohara-001jam | 1906 | 5/2-8/25 | Fall River Indians | New England League | , | |
| Tom O'Hara | ohara-002tho | 1906 | 4/25-9/15 | Lancaster Red Roses | Tri-State League | , | |
| Tom O'Hara | ohara-002tho | 1906 | 9/19- | 14 g. | St. Louis | National League | St. Louis, MO |
| O'Hare | 1906 | +6/1+ | Houghton Giants | Northern-Copper Country League | , | ||
| Thomas O'Hare | ohare-001tho | 1906 | Erie Sailors | Interstate League | , | ||
| Harold O'Hayer | 1906 | 5/19-7/29 | Hancock Infants | Northern-Copper Country League | , | ||
| Harold O'Hayer | 1906 | +9/3 | Lake Linden Sandy Cities | Northern-Copper Country League | , | ||
| Daniel O'Leary | oleary001dan | 1906 | 5/4-9/23 | Wichita Jobbers | Western Association | , | |
| Ed O'Leary | 1906 | 9/11-9/15 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Eugene O'Leary | 1906 | 8/22 | Holyoke Paperweights | Connecticut State League | , | ||
| Frank O'Leary | oleary001fra | 1906 | 5/2-9/30 | Des Moines Champs | Western League | , | |
| Frank O'Leary | oleary001fra | 1906 | no g. | Cleveland | American League | Cleveland, OH | |
| George O'Leary | oleary001geo | 1906 | Springfield Babes | Central League | , | ||
| George O'Leary | oleary001geo | 1906 | 78 g. | Oshkosh Indians | Wisconsin State League | , | |
| John O'Leary | 1906 | 4/26-9/8 | Hartford Senators | Connecticut State League | , | ||
| Michael O'Malley | omalle001mic | 1906 | Hudson Marines | Hudson River League | , | ||
| O'Neil | 1906 | 8/24-8/25 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| O'Neil | 1906 | 8 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Dan O'Neil | oneill003dan | 1906 | 4/26-9/8 | Springfield Ponies | Connecticut State League | , | |
| Harry O'Neil | oneil-000har | 1906 | 4/26-5/5 | Portsmouth Truckers | Virginia League | , | |
| Harry O'Neil | oneil-000har | 1906 | 5/8-5/12 | Danville Red Sox | Virginia League | , | |
| Harry O'Neil | oneil-000har | 1906 | 7/19 | Lawrence Colts | New England League | , | |
| James O'Neil | oneil-000har | 1906 | 4/27- | Lynn Shoemakers | New England League | , | |
| James O'Neil | oneil-000har | 1906 | -9/8 | Lowell Tigers | New England League | , | |
| O'Neill | 1906 | 5/2 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| O'Neill | 1906 | 8/29 | Johnstown Johnnies | Tri-State League | , | ||
| Charles O'Neill | 1906 | no g. | New London Whalers | Connecticut State League | , | ||
| Jack O'Neill | oneill008joh | 1906 | -10/3 | 61 g. | Boston | National League | Boston, MA |
| James O'Neill | oneill005jam | 1906 | 4/27- | Lynn Shoemakers | New England League | , | |
| James O'Neill | oneill005jam | 1906 | -9/8 | Lowell Tigers | New England League | , | |
| John O'Neill | oneil-027--- | 1906 | 4/27-5/19 | Haverhill Hustlers | New England League | , | |
| John O'Neill | oneil-027--- | 1906 | 6/20-6/22 | Newark Sailors | Eastern League | , | |
| John O'Neill | oneill004wil | 1906 | 94 g. | Chicago | American League | Chicago, IL | |
| Mike O'Neill | oneill002mic | 1906 | 4/25-9/15 | York Penn Parks | Tri-State League | , | |
| Peaches O'Neill | oneill002phi | 1906 | 5/13-5/16 | Sioux City Packers | Western League | , | |
| Peaches O'Neill | oneill002phi | 1906 | Anderson | Interstate Association | , | ||
| Peaches O'Neill | oneill002phi | 1906 | 7/17-7/19 | Nashville Volunteers | Southern Association | , | |
| Tip O'Neill | oneill001nor | 1906 | President | Western League | , | ||
| O'Quinn | 1906 | Valdosta Stars | Georgia State League | , | |||
| John O'Reilly | 1906 | 5/1-5/15 | Umpire | Connecticut State League | , | ||
| John O'Reilly | 1906 | Umpire | New England League | , | |||
| Jim O'Rourke | orourk003jam | 1906 | 93 g. | Bridgeport Orators | Connecticut State League | , | |
| Jimmy O'Rourke | orourk005jam | 1906 | 127 g. | Bridgeport Orators | Connecticut State League | , | |
| Joseph O'Rourke | orourk001jos | 1906 | 4/26-9/8 | New London Whalers | Connecticut State League | , | |
| Steve O'Rourke | 1906 | Auburn | Empire State League | , | |||
| Frank O'Shaughnessy | 1906 | Notre Dame Univ | College | , | |||
| O'Tool | 1906 | 7/1 | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| Marty O'Toole | otoole001mar | 1906 | 4/27-9/8 | Manchester Textiles | New England League | , | |
| Michael O'Toole | otoole001mic | 1906 | 4/27-9/8 | Manchester Textiles | New England League | , | |
| Patrick O'Toole | 1906 | 4/27-4/30 | Manchester Textiles | New England League | , | ||
| Charles Oakes | 1906 | Newburgh Hill Climbers | Hudson River League | , | |||
| Rebel Oakes | oakes-001enn | 1906 | 5/3-9/16 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Franklin Oakley | 1906 | Merchantville NJ | Independent | , | |||
| Frank Oberlin | oberli002fra | 1906 | 4/18-9/11 | Milwaukee Brewers | American Association | , | |
| Frank Oberlin | oberli002fra | 1906 | 4 g. | Boston | American League | Boston, MA | |
| Clarence Ochs | ochs--001cla | 1906 | 340 ab | Newburgh Hill Climbers | Hudson River League | , | |
| George Odiorne | 1906 | 6/11-8/18 | Manning | South Carolina League | , | ||
| J. Odiorne | 1906 | 6/11-8/13 | Manning | South Carolina League | , | ||
| Fred Odwell | odwell001fre | 1906 | 58 g. | Cincinnati | National League | Cincinnati, OH | |
| Fred Odwell | odwell001fre | 1906 | 7/13-9/16 | Toledo Mud Hens | American Association | , | |
| Herman Oehme | 1906 | 4/25-5/22 | Waco Navigators | Texas League | , | ||
| Herman Oehme | 1906 | 5/26-7/20 | Guthrie Senators | South Central League | , | ||
| Herman Oehme | 1906 | 7/24-8/2 | Tulsa Oilers | South Central League | , | ||
| John Ogee | ogee--001joh | 1906 | 5/4- | 83 g. | Oklahoma City Mets | Western Association | , |
| Harry Ohland | 1906 | 5/15-9/23 | Jackson Convicts | Southern Michigan League | , | ||
| Rube Oldring | oldrin001rub | 1906 | 59 g. | Philadelphia | American League | Philadelphia, PA | |
| Oliver | 1906 | Umpire | South Texas League | , | |||
| Oliver | 1906 | +7/7+ | Umpire | South Texas League | , | ||
| Cornelius Ollre | 1906 | 4/28-9/1 | Lake Charles Creoles | South Texas League | , | ||
| Fred Olmstead | olmste001fre | 1906 | 5/4-9/22 | 62 g. | Springfield Midgets | Western Association | , |
| Fred Olmsted | olmest001fre | 1906 | rel. 6/6 | 11 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , |
| Hank Olmsted | olmste001hen | 1906 | 4/22-6/10 | 11 g. | Kansas City Blues | American Association | , |
| Olson | 1906 | 8 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Olson | 1906 | +7/10+ | Duluth White Sox | Northern-Copper Country League | , | ||
| Olson | 1906 | 9/1-9/2 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| Emery Olson | 1906 | 5/1-7/30+ | Muskogee Indians | South Central League | , | ||
| Emery Olson | 1906 | 8/15-8/16 | Topeka White Sox | Western Association | , | ||
| Emery Olson | 1906 | 8/21-8/30 | Oklahoma City Mets | Western Association | , | ||
| Emery Olson | 1906 | 9/1-9/22 | Topeka White Sox | Western Association | , | ||
| Ivan Olson | 1906 | 5/1-8/2 | Tulsa Oilers | South Central League | , | ||
| Ivan Olson | 1906 | 8/11-9/23 | Webb City Goldbugs | Western Association | , | ||
| Sylvester Olson | olson-001syl | 1906 | 5/4-9/23 | Joplin Miners | Western Association | , | |
| Edward Opfergelt | opferg000edw | 1906 | Decatur Commodores | Illinois-Indiana-Iowa League | , | ||
| Edward Opfergelt | opferg000edw | 1906 | +5/13-5/20+ | Chic.-Lawndales | Independent | , | |
| Edward Opfergelt | opferg000edw | 1906 | +7/2-8/23+ | Montpelier-Barre | Northern Independent | , | |
| Oran | 1906 | +6/7-6/8+ | Green Bay Colts | Wisconsin State League | , | ||
| George Ordiorne | 1906 | 6/11-8/18 | Manning | South Carolina League | , | ||
| J. Ordiorne | 1906 | 6/11-8/13 | Manning | South Carolina League | , | ||
| Ordway | 1906 | 6/28-7/2 | Webb City Goldbugs | Western Association | , | ||
| William Oriet | oriet-001wil | 1906 | +7/15+ | Great Falls MT | Independent | , | |
| Jess Orndorff | orndor001jes | 1906 | StL-Ben Miller | St. Louis Trolley League | , | ||
| Edward Orr | 1906 | 6/14-9/1 | Little Rock Travelers | Southern Association | , | ||
| George Ort | ort---001geo | 1906 | +5/27-9/23 | Mount Clemens Bathers | Southern Michigan League | , | |
| Orth | 1906 | 5/13 | Waco Navigators | Texas League | , | ||
| Orth | 1906 | 5/25-5/31 | Muskogee Indians | South Central League | , | ||
| William Orth | 1906 | Houghton Giants | Northern-Copper Country League | , | |||
| Herman Ortlieb | ortlie001her | 1906 | 4/28-9/23 | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| Fred Osborn | osborn001wil | 1906 | 4/27-9/25 | Canton Chinamen | Central League | , | |
| Arch Osborne | osborn001arc | 1906 | 5.25-6/27 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | |
| Arch Osborne | osborn001arc | 1906 | 7/12-9/13 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| Owen Osborne | 1906 | Park City UT | Independent | , | |||
| E. C. Osgood | 1906 | +5/21-9/1+ | 95 g. | San Antonio Bronchos | South Texas League | , | |
| E. C. Osgood | 1906 | +8/21+ | Galveston Sand Crabs | South Texas League | , | ||
| Joseph Osment | osment001jos | 1906 | +5/19+ | Cordele | Georgia State League | , | |
| Harry Ostdiek | ostdie001hen | 1906 | 5/4-9/25 | Canton Chinamen | Central League | , | |
| Champ Osteen | osteen001jam | 1906 | 4/27-9/25 | Springfield Babes | Central League | , | |
| Oswald | 1906 | San Francisco Orphans | California League | , | |||
| Bill Otey | otey--001wil | 1906 | 4/28-9/8 | Norfolk Tars | Virginia League | , | |
| Otis | 1906 | 6/1 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| Frank Ott | ott---002fra | 1906 | 5/19-6/25+ | Grand Forks Forkers | Northern-Copper Country League | , | |
| Frank Ott | ott---002fra | 1906 | 54 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | |
| Orval Overall | overal001orv | 1906 | 1 g. | Fresno Raisin Eaters | Pacific Coast League | , | |
| Orval Overall | overal001orv | 1906 | 13 g. | Cincinnati | National League | Cincinnati, OH | |
| Orval Overall | overal001orv | 1906 | 18 g. | Chicago | National League | Chicago, IL | |
| Ovitz | 1906-08 | U. Michigan | College | , | |||
| Ernie Ovitz | ovitz-001ern | 1906-08 | U. of Illinois | College | , | ||
| Benjamin Owen | 1906-21 | U. of Oklahoma | College | , | |||
| Owens | 1906 | 7/13 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Arthur Owens | owens-001art | 1906 | 5/6-5/24 | Toronto Maple Leafs | Eastern League | , | |
| Arthur Owens | owens-001art | 1906 | 5/31-9/9 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Clarence Owens | 1906 | 4/18-9/16 | Umpire | American Association | , | ||
| Clarence Owens | 1906 | 9/19-9/23 | Umpire | Western Association | , | ||
| Red Owens | owens-003tho | 1906 | 4/25-9/15 | York Penn Parks | Tri-State League | , | |
| Yip Owens | owens-001fra | 1906 | 4/14-9/15 | Memphis Egyptians | Southern Association | , | |
| Clarence Owsley | owsley001--- | 1906 | Waterloo Microbes | Iowa League | , | ||
| Clarence Owsley | owsley001--- | 1906 | 11 g. | Freeport Pretzels | Wisconsin State League | , | |
| Andy Oyler | oyler-001and | 1906 | 4/18-9/17 | Minneapolis Millers | American Association | , | |
| William Oyler | oyler-001wil | 1906 | 4/11-8/4 | Birmingham Barons | Southern Association | , | |
| Dick Padden | padden001ric | 1906 | 4/18-9/16 | St. Paul Saints | American Association | , | |
| Luis Padron | padron001lou | 1906 | Cuban League | , | |||
| Luis Padron | padron001lou | 1906 | 4/16-5/26 | Jacksonville Jays | South Atlantic League | , | |
| Billy Page | page--001wil | 1906 | 4/27-9/8 | Lawrence Colts | New England League | , | |
| Charles Page | 1906 | 8/3-8/9 | New London Whalers | Connecticut State League | , | ||
| George Page | page--003geo | 1906 | 92 g. | San Antonio Bronchos | South Texas League | , | |
| George Page | page--003geo | 1906 | Lake Charles Creoles | South Texas League | , | ||
| Arthur Pagel | 1906 | 22 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| George Paige | paige-001geo | 1906 | 60 g. | Denver Grizzlies | Western League | , | |
| Harold Paine | 1906 | Brown Univ. | College | , | |||
| Harold Paine | 1906 | -7/19 | Plattsburgh | Northern Independent League | , | ||
| Harold Paine | 1906 | Rockville CT | Independent | , | |||
| William Paine | 1906 | 4/28-5/12 | Worcester Busters | New England League | , | ||
| Edward Painter | painte001edw | 1906 | 5/4-5/13 | Pueblo Indians | Western League | , | |
| Edward Painter | painte001edw | 1906 | Oskaloosa Quakers | Iowa League | , | ||
| Edward Painter | painte001edw | 1906 | Ottumwa Champs | Iowa League | , | ||
| Henry Palm | palm--001hen | 1906 | 4/25-7/4+ | Waco Navigators | Texas League | , | |
| Henry Palm | palm--001hen | 1906 | 43 g. | Lake Charles Creoles | South Texas League | , | |
| Lester Palmer | 1906 | 7/24-8/21 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Emilio Palomino | palomi000emi | 1906 | Almendares | Cuban Winter League | , | ||
| Emilio Palomino | palomi000emi | 1906 | Almendares | Cuban Winter League | , | ||
| Emil Papenfuss | papenf001emi | 1906 | 110 g. | Wausau Lumberjacks | Wisconsin State League | , | |
| John Pappalau | pappal001joh | 1906 | 4/26-9/10 | Montreal Royals | Eastern League | , | |
| Al Pardee | pardee001alb | 1906 | 4/28-9/21 | Newark Sailors | Eastern League | , | |
| Harry Parent | parent001har | 1906 | 5/15-6/2+ | Battle Creek Crickets | Southern Michigan League | , | |
| Harry Parent | parent001har | 1906 | 7/10 | Bay City MI | Independent | , | |
| Archibald Parish | 1906 | no g. | Decatur Commodores | Illinois-Indiana-Iowa League | , | ||
| Archibald Parish | 1906 | +5/30-6/10+ | Galena IL | Independent | , | ||
| Parker | 1906 | 23 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | ||
| Parker | 1906 | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | |||
| L. C. Parker | 1906 | Guthrie Senators | South Central League | , | |||
| Richard Parker | parker001ric | 1906 | Alameda Grays | California League | , | ||
| Robert Parker | 1906 | 5/15-9/23 | Kalamazoo White Sox | Southern Michigan League | , | ||
| Sam Parker | 1906 | U. Tennessee | College | , | |||
| Roy Parkin | parkin001r-- | 1906 | 4/20-8/16 | St. Paul Saints | American Association | , | |
| Roy Parkin | parkin001r-- | 1906 | 26 g. | Waterloo Microbes | Iowa League | , | |
| Charles Parkins | parkin003cha | 1906 | 4/26-5/26 | Hartford Senators | Connecticut State League | , | |
| Charles Parkins | parkin003cha | 1906 | 6/15-9/3 | Jacksonville Jays | South Atlantic League | , | |
| Charles Parkins | parkin003cha | 1906 | 9/11-9/14 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Cy Parkins | 1906 | 4/26-9/8 | Norwich Reds | Connecticut State League | , | ||
| Parris | 1906 | +5/21+ | Grand Forks Forkers | Northern-Copper Country League | , | ||
| Parrott | 1906 | 5/17 | Scranton Miners | New York State League | , | ||
| Tom Parrott | parrot002tho | 1906 | 121 g. | San Antonio Bronchos | South Texas League | , | |
| Tom Parrott | parrot002tho | 1906 | Galveston Sand Crabs | South Texas League | , | ||
| Parsons | 1906-07 | Yale University | College | , | |||
| Parsons | 1906 | +8/5+ | Troy NY | Independent | , | ||
| Parsons | 1906 | +4/21-6/3+ | Bucknell Univ. | College | , | ||
| Parsons | 1906 | 6/27-9/13 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| Clarence Parsons | 1906 | +5/4-5/7+ | Wheeling Stogies | Central League | , | ||
| Dode Paskert | pasker001geo | 1906 | 4/27-9/25 | Dayton Veterans | Central League | , | |
| Tony Pastor | pastor001hen | 1906 | 4/27-9/8 | Lynn Shoemakers | New England League | , | |
| Jim Pastorius | pastor002jam | 1906 | 4/15- | 29 g. | Brooklyn | National League | Brooklyn, NY |
| Alfred Patrick | 1906 | 1 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | ||
| Alfred Patrick | 1906 | 12 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| John Patritch | 1906 | +6/19+ | Charleroi PA | MononVal | , | ||
| John Patritch | 1906 | 8/13-9/15 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Harry Pattee | pattee001har | 1906 | Brown Univ. | College | , | ||
| Harry Pattee | pattee001har | 1906 | Tufts College | College | , | ||
| Harry Pattee | pattee001har | 1906 | +6/+ | Attleboro MA | Independent | , | |
| Harry Pattee | pattee001har | 1906 | no g. | Brooklyn | National League | Brooklyn, NY | |
| Harry Pattee | pattee001har | 1906 | +7/10+ | Plattsburgh | Northern Independent League | , | |
| Harry Pattee | pattee001har | 1906 | +7/25-8/23 | Burlington | Northern Independent League | , | |
| Patterson | 1906 | 46 g. | Green Bay Colts | Wisconsin State League | , | ||
| Patterson | 1906 | Wausau Lumberjacks | Wisconsin State League | , | |||
| Ham Patterson | patter001ham | 1906 | 126 g. | Oskaloosa Quakers | Iowa League | , | |
| Van Patterson | patter001van | 1906 | Erie Sailors | Interstate League | , | ||
| Van Patterson | patter001van | 1906 | Bradford Drillers | Interstate League | , | ||
| Van Patterson | patter001van | 1906 | Oil City-Jamestown Oseejays | Interstate League | , | ||
| Van Patterson | patter001van | 1906 | 6/14-9/28 | Sharon Steels | Ohio-Pennsylvania League | , | |
| Russell Pattison | 1906 | no g. | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Russell Pattison | 1906 | 6/23-7/24 | Sioux City Packers | Western League | , | ||
| Russell Pattison | 1906 | 7/31-8/13 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Will Pattison | pattis001w-- | 1906 | Plattsburgh | Northern Independent League | , | ||
| Patton | 1906 | 5/25 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Herman Paul | paul--001her | 1906 | 28 g. | Marshalltown Brownies | Iowa League | , | |
| August Paulig | paulig001aug | 1906 | 97 g. | Beaumont Oilers | South Texas League | , | |
| Carl Payne | 1906 | 4/26-5/7 | Evansville River Rats | Central League | , | ||
| Carl Payne | 1906 | Boonville IN | Independent | , | |||
| Carl Payne | 1906 | 7/30-9/7 | Terre Haute Hottentots | Central League | , | ||
| Dudley Payne | payne-001dud | 1906 | Umpire | South Texas League | , | ||
| Fred Payne | payne-001fre | 1906 | Detroit | American League | Detroit, MI | ||
| John Peacock | peacoc002joh | 1906 | 5/19-5/24 | Albany Senators | New York State League | , | |
| Bunny Pearce | pearce001wil | 1906 | 5/9-5/31 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Bunny Pearce | pearce001wil | 1906 | 6/9-7/30 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Alex Pearson | pearso001ale | 1906 | 4/27-5/9 | Harrisburg Senators | Tri-State League | , | |
| Alex Pearson | pearso001ale | 1906 | 5/12- | Johnstown Johnnies | Tri-State League | , | |
| Alex Pearson | pearso001ale | 1906 | 5/24-9/15 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| William Pearson | pearso002wil | 1906 | 4/27-9/23 | Dayton Veterans | Central League | , | |
| Joseph Peartree | peartr001j-- | 1906 | 5/11-9/22 | Troy Trojans | New York State League | , | |
| Walter Pease | pease-001wal | 1906 | 4/25-6/3 | Temple Boll Weevils | Texas League | , | |
| Pedington | 1906 | Wausau Lumberjacks | Wisconsin State League | , | |||
| Michael Peer | peer--001mic | 1906 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Samuel Peer | peer--001sam | 1906 | +8/21+ | Titusville PA | Independent | , | |
| Heinie Peitz | peitz-001hen | 1906 | 40 g. | Pittsburgh | National League | Pittsburgh, PA | |
| Louis Pelkey | 1906 | 4/28-8/7 | Fort Smith Razorbacks | South Central League | , | ||
| Joseph Peloquin | peloqu001edm | 1906 | +4/19+ | Villanova College | College | , | |
| Joseph Peloquin | peloqu001edm | 1906 | 6/22-8/23 | Norwich Reds | Connecticut State League | , | |
| Bob Pender | pender001rob | 1906 | 4/16-9/3 | Charleston Sea Gulls | South Atlantic League | , | |
| John Pender | 1906 | Kingston Colonials | Hudson River League | , | |||
| John Pender | 1906 | 8/28-9/16 | Utica Pent-Ups | New York State League | , | ||
| Ike Pendleton | pendle001isa | 1906 | 130 g. | San Antonio Bronchos | South Texas League | , | |
| John Pendry | pendry001joh | 1906 | 5/4-5/6 | Joplin Miners | Western Association | , | |
| John Pendry | pendry001joh | 1906 | 5/8-9/23 | Oklahoma City Mets | Western Association | , | |
| Art Pennell | pennel001art | 1906 | 5/9 | Cleburne Railroaders | Texas League | , | |
| Art Pennell | pennel001art | 1906 | 104 g. | Wichita Jobbers | Western Association | , | |
| Art Pennell | pennel001art | 1906 | Topeka White Sox | Western Association | , | ||
| Pennington | 1906 | 7/31-8/18 | Georgetown | South Carolina League | , | ||
| George Pennington | pennin002geo | 1906 | 5/4-5/15 | Leavenworth Old Soldiers | Western Association | , | |
| George Pennington | pennin002geo | 1906 | 65 g. | Boone/Clinton Miners | Iowa League | , | |
| Joseph Pepe | 1906 | 7/31-8/28 | Macon Brigands | South Atlantic League | , | ||
| Herbert Perdue | perdue001her | 1906 | 40 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | |
| Walter Perdue | 1906 | +4/20-7/5+ | Lima | Interstate Association | , | ||
| Ray Perkins | perkin001ray | 1906 | 4/26-9/8 | Norwich Reds | Connecticut State League | , | |
| Tate Perkins | perkin013--- | 1906 | 5/3-5/6 | Chanute Browns | Kansas State League | , | |
| Tate Perkins | perkin013--- | 1906 | Umpire | Western Association | , | ||
| John Perrine | perrin002joh | 1906 | 4/18-9/15 | Kansas City Blues | American Association | , | |
| George Perring | perrin001geo | 1906 | 5/2-10/1 | Omaha Rourkes | Western League | , | |
| Perry | 1906 | 27 g. | Waterloo Microbes | Iowa League | , | ||
| Perry | 1906 | Americus Pallbearers | Georgia State League | , | |||
| Clay Perry | perry-001cla | 1906 | 4/11-9/15 | Montgomery Senators | Southern Association | , | |
| Red Perry | perry-001e-- | 1906 | 112 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| William Perry | perry-003wil | 1906 | 4/23-9/1 | Indianapolis Indians | American Association | , | |
| Dutch Persch | persch001abn | 1906 | 5/4-9/23 | Springfield Midgets | Western Association | , | |
| Archie Persons | person001arc | 1906 | 4/18 | Minneapolis Millers | American Association | , | |
| Archie Persons | person001arc | 1906 | 4/20-9/15 | Nashville Volunteers | Southern Association | , | |
| Eddie Persons | person001edw | 1906 | 5/13-7/13 | Scranton Miners | New York State League | , | |
| Eddie Persons | person001edw | 1906 | 7/25-9/7 | Portsmouth Truckers | Virginia League | , | |
| Peters | 1906 | 8/9 | Sioux City Packers | Western League | , | ||
| Peterson | 1906 | Alameda Grays | California League | , | |||
| Bob Peterson | peters005rob | 1906 | 4/18- | 39 g. | Boston | American League | Boston, MA |
| Dave Peterson | 1906 | 5/13-5/30+ | Chanute Browns | Kansas State League | , | ||
| Dave Peterson | 1906 | Umpire | Kansas State League | , | |||
| Dave Peterson | 1906 | +8/12+ | Chanute-Eagles | Independent | , | ||
| Dave Peterson | 1906 | Chanute Browns | Kansas State League | , | |||
| Elmer Peterson | peters002elm | 1906 | Oakland Commuters | California League | , | ||
| Elmer Peterson | peters002elm | 1906 | San Francisco Orphans | California League | , | ||
| Peter Peterson | 1906 | +5/9-7/9+ | 40g. | Boone/Clinton Miners | Iowa League | , | |
| Jim Pettigrew | pettig001jim | 1906 | 5/4-9/23 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Andrew Pettit | petit-001and | 1906 | 102 g. | Jackson Senators | Cotton States League | , | |
| Andrew Pettit | petit-001and | 1906 | 9/13-10/1 | Sioux City Packers | Western League | , | |
| Pfaff | 1906 | 12 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Pfaff | 1906 | 5/25-5/30 | Indianapolis Indians | American Association | , | ||
| George Pfanmiller | pfanmi001geo | 1906 | 5/29-6/5 | Jersey City Skeeters | Eastern League | , | |
| George Pfanmiller | pfanmi001geo | 1906 | 8/18-9/20 | Jersey City Skeeters | Eastern League | , | |
| Big Jeff Pfeffer | pfeffe001fra | 1906 | 60 g. | Boston | National League | Boston, MA | |
| Harry Pfeiffer | 1906 | Beaver Falls PA | Independent | , | |||
| Harry Pfeiffer | 1906 | 8/18 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Harry Pfeiffer | 1906 | 8/22 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Dan Pfenninger | pfenni001dan | 1906 | 4/11-9/15 | Umpire | Southern Association | , | |
| Jack Pfiester | pfiest001joh | 1906 | 31 g. | Chicago | National League | Chicago, IL | |
| George Phalen | phalen001geo | 1906 | Paterson Intruders | Hudson River League | , | ||
| Harry Phelan | 1906 | 5/19 | Cordele | Georgia State League | , | ||
| John Phelan | phelan001joh | 1906 | 4/27-9/8 | Manchester Textiles | New England League | , | |
| John Phelan | phelan001joh | 1906 | 9/10-9/19 | Montreal Royals | Eastern League | , | |
| Martin Phelan | phelan001mar | 1906 | Newburgh Hill Climbers | Hudson River League | , | ||
| Phelps | 1906 | 8/18 | Sumter Game Cocks | South Carolina League | , | ||
| Thomas Philbin | philbi002tho | 1906 | Erie Sailors | Interstate League | , | ||
| Bill Phillips | philli005wil | 1906 | 4/14-9/14 | New Orleans Pelicans | Southern Association | , | |
| J. H. Phillips | 1906 | +5/2-6/30 | Greenville Hunters | Texas League | , | ||
| J. H. Phillips | 1906 | 7/1-7/31+ | Waco Navigators | Texas League | , | ||
| James Phillips | philli012jam | 1906 | 5/16-5/18 | Sioux City Packers | Western League | , | |
| James Phillips | philli012jam | 1906 | +6/9+ | DuBois Miners | Interstate League | , | |
| Joseph Phillips | 1906 | 8/25-9/15 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Thomas Phoenix | phoeni001tho | 1906 | Runnells IA | Independent | , | ||
| William Phoenix | 1906 | 4/26-9/8 | Bridgeport Orators | Connecticut State League | , | ||
| Bill Phyle | phyle-002wil | 1906 | 4/18-7/25 | Kansas City Blues | American Association | , | |
| Bill Phyle | phyle-002wil | 1906 | - 9/15 | 22 g. | St. Louis | National League | St. Louis, MO |
| Wiley Piatt | piatt-001wil | 1906 | Toledo Mud Hens | American Association | , | ||
| Wiley Piatt | piatt-001wil | 1906 | 13 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| Wiley Piatt | piatt-001wil | 1906 | Decatur Commodores | Illinois-Indiana-Iowa League | , | ||
| David Picard | 1906 | no g. | Albany Senators | New York State League | , | ||
| Aubrey Pickens | picken001aub | 1906 | 4/28-8/7 | South McAlester Miners | South Central League | , | |
| Ollie Pickering | picker001oli | 1906 | 4/18-9/16 | Columbus Senators | American Association | , | |
| Dave Pickett | picket003dav | 1906 | +4/30-6/4 | Dayton Veterans | Central League | , | |
| Dave Pickett | picket003dav | 1906 | 6/5-7/7+ | Terre Haute Hottentots | Central League | , | |
| Dave Pickett | picket003dav | 1906 | 7/26-9/8 | Lynn Shoemakers | New England League | , | |
| Charles Piepho | piepho001c-- | 1906 | 4/16-4/25 | Macon Brigands | South Atlantic League | , | |
| Charles Piepho | piepho001c-- | 1906 | Valdosta Stars | Georgia State League | , | ||
| Charles Piepho | piepho001c-- | 1906 | 6/16-7/19 | Roanoke Tigers | Virginia League | , | |
| Elmer Pierce | pierce001elm | 1906 | 5/11-6/27 | St. Paul Saints | American Association | , | |
| Elmer Pierce | pierce001elm | 1906 | Decatur Commodores | Illinois-Indiana-Iowa League | , | ||
| Robert Pierce | 1906 | Oakland Commuters | California League | , | |||
| Thurston Pierce | pierce001thu | 1906 | Oakland Commuters | California League | , | ||
| Thurston Pierce | pierce001thu | 1906 | 1 g. | San Francisco Seals | Pacific Coast League | , | |
| John Pierson | 1906 | 5/3-6/14 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| John Pierson | 1906 | 6/15-9/9 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Ethen Pinkerton | pinker001e-- | 1906 | 5/3- | 33 g. | Parsons Preachers | Kansas State League | , |
| Ethen Pinkerton | pinker001e-- | 1906 | 8/26-9/23 | Leavenworth Old Soldiers | Western Association | , | |
| Charles Pinkney | 1906 | 133 g. | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| George Pinkney | 1906 | 5/10-5/16 | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| Ed Pinnance | pinnan001edw | 1906 | 5/20-6/6 | Albany Senators | New York State League | , | |
| Ed Pinnance | pinnan001edw | 1906 | 7/4-9/23 | Albany Senators | New York State League | , | |
| William Piper | piper-001lar | 1906 | 5/19-9/3 | Winnipeg Maroons | Northern-Copper Country League | , | |
| Harvey Place | 1906 | Auburn | Empire State League | , | |||
| Homer Plake | plake-001hom | 1906 | Alameda Grays | California League | , | ||
| Homer Plake | plake-001hom | 1906 | Boone/Clinton Miners | Iowa League | , | ||
| Homer Plake | plake-001hom | 1906 | Ottumwa Champs | Iowa League | , | ||
| Ira Plank | plank-001ira | 1906 | 4/26-9/8 | Norwich Reds | Connecticut State League | , | |
| Forrest Plass | plass-001for | 1906 | 4/12-5/14 | New Orleans Pelicans | Southern Association | , | |
| Forrest Plass | plass-001for | 1906 | 5/21-5/29 | Nashville Volunteers | Southern Association | , | |
| Forrest Plass | plass-001for | 1906 | 6/1-9/8 | Memphis Egyptians | Southern Association | , | |
| Harry Platt | platt-001har | 1906 | Stockton Millers | California League | , | ||
| Harry Platt | platt-001har | 1906 | San Jose Prune Pickers | California League | , | ||
| Eddie Pleiss | pleiss001edw | 1906 | 4/25-4/26 | Atlanta Crackers | Southern Association | , | |
| Eddie Pleiss | pleiss001edw | 1906 | 5/1-7/28 | Manchester Textiles | New England League | , | |
| Eddie Pleiss | pleiss001edw | 1906 | 8/2-9/15 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Plowden | 1906 | 6/21-8/18 | Manning | South Carolina League | , | ||
| Thomas Plummer | plumme001tho | 1906 | 5/3-6/5+ | Marion | Interstate Association | , | |
| Thomas Plummer | plumme001tho | 1906 | +7/22-9/23 | Saginaw | Southern Michigan League | , | |
| Tom Plunkett | plunke001emm | 1906 | 6/18-6/25 | Lowell Tigers | New England League | , | |
| Tom Plunkett | plunke001emm | 1906 | 9/8 | Norwich Reds | Connecticut State League | , | |
| Willie Pogreba | pogreb000wil | 1906 | +8/8+ | GrFa-West Side | Independent | , | |
| Dee Poindexter | poinde001dee | 1906 | 4/25-9/3 | Cleburne Railroaders | Texas League | , | |
| Edward Pokorney | pokorn001edw | 1906 | 5/4-9/23 | Webb City Goldbugs | Western Association | , | |
| Phillip Poland | poland002phi | 1906 | 4/26-9/22 | Providence Grays | Eastern League | , | |
| Lou Polchow | polcho001lou | 1906 | 5/15-9/20 | Scranton Miners | New York State League | , | |
| Walter Pollard | 1906 | Northwestern Univ | College | , | |||
| Walter Pollard | 1906 | Boone/Clinton Miners | Iowa League | , | |||
| Walter Pollard | 1906 | 7/29- | Terre Haute Hottentots | Central League | , | ||
| Walter Pollard | 1906 | 9/15 | Evansville River Rats | Central League | , | ||
| Ponges | 1906 | +5/21+ | Grand Forks Forkers | Northern-Copper Country League | , | ||
| Lyman Pool | 1906 | +5/30-6/4+ | Fargo | Northern-Copper Country League | , | ||
| Lyman Pool | 1906 | +6/12+ | Hancock Infants | Northern-Copper Country League | , | ||
| Lyman Pool | 1906 | 8/19- | Ashland WI | Independent | , | ||
| Poole | poole-005--- | 1906 | +5/9-5/16+ | Albany | Georgia State League | , | |
| Poole | poole-005--- | 1906 | +6/7-6/13+ | Americus Pallbearers | Georgia State League | , | |
| Poole | 1906 | 6/20-7/7 | Sumter Game Cocks | South Carolina League | , | ||
| Ed Poole | poole-001edw | 1906 | 4/27-9/9 | Providence Grays | Eastern League | , | |
| F. Poole | 1906 | Cordele | Georgia State League | , | |||
| Timothy Poole | 1906 | 4/26-4/30 | Portsmouth Truckers | Virginia League | , | ||
| William Poole | poole-002wil | 1906 | Glens Falls-Saratoga Springs | Hudson River League | , | ||
| William Poole | poole-002wil | 1906 | 9/12-9/15 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Jap Poor | poor--001jas | 1906 | 4/25-6/12+ | Waco Navigators | Texas League | , | |
| Fred Pope | 1906 | +6/21-9/13+ | South Bend Greens | Central League | , | ||
| Fred Popkay | popkay001fre | 1906 | Umpire | Southern Michigan League | , | ||
| Fred Popkay | popkay001fre | 1906 | 6/10-6/24 | Umpire | American Association | , | |
| Fred Popkay | popkay001fre | 1906 | Umpire | Southern Michigan League | , | ||
| Frederick Port | port--003--- | 1906 | preseason | Omaha Rourkes | Western League | , | |
| Frederick Port | port--003--- | 1906 | 5/6-5/19 | Leavenworth Old Soldiers | Western Association | , | |
| Frederick Port | port--003--- | 1906 | 5/28-5/31 | Oklahoma City Mets | Western Association | , | |
| Porter | 1906 | +6/28+ | Scottdal PA | Independent | , | ||
| Porter | 1906 | 7/17-7/18 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | ||
| Andy Porter | porter003and | 1906 | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Carl Porter | porter003car | 1906 | , | ||||
| Charles Porter | porter003c-- | 1906 | 5/4-6/12 | Oklahoma City Mets | Western Association | , | |
| Charles Porter | porter003c-- | 1906 | 6/26-7/29+ | Muskogee Indians | South Central League | , | |
| Charles Porter | porter001cha | 1906 | 4/28-8/7 | South McAlester Miners | South Central League | , | |
| D. D. Porter | porter000dd- | 1906 | no g. | Portsmouth Truckers | Virginia League | , | |
| Frank Porter | 1906 | 8/10-9/15 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Samuel Posey | 1906 | 5/7-7/4 | Albany | Georgia State League | , | ||
| Claude Potts | 1906 | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |||
| Bill Pounds | pounds001jea | 1906 | 5/12-9/19 | Wilkes-Barre Barons | New York State League | , | |
| Bill Powell | powell003wil | 1906 | 9/7-9/15 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Bill Powell | powell003wil | 1906 | Greensburg PA | , | |||
| Jack Powell | powell007joh | 1906 | St. Louis | American League | St. Louis, MO | ||
| John Powell | 1906 | Trinity College | College | , | |||
| John Powell | 1906 | 7/26-7/28 | Hartford Senators | Connecticut State League | , | ||
| Walter Powell | powell001wal | 1906 | 4/16-6/2 | Augusta Tourists | South Atlantic League | , | |
| Walter Powell | powell001wal | 1906 | 6/7-9/8 | Danville Red Sox | Virginia League | , | |
| William Powell | powell005wil | 1906 | 4/25-6/30 | Cleburne Railroaders | Texas League | , | |
| William Powell | powell005wil | 1906 | 7/11-9/15 | Shreveport Pirates | Southern Association | , | |
| William Powell | powell008wil | 1906 | 39 g. | Augusta Tourists | South Atlantic League | , | |
| Powers | 1906 | 6/21-6/23 | Waco Navigators | Texas League | , | ||
| August Powers | 1906 | Rockport IN HS | High School | , | |||
| Edward Powers | powers001edw | 1906 | 58 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| Eddie Pratt | 1906 | Yale Univ. | College | , | |||
| Albert Pregont | pregon000alb | 1906 | RhinelanderWI | Independent | , | ||
| Wallace Prejean | 1906-07 | Donaldsonville | Independent | , | |||
| John Pressler | pressl001joh | 1906 | 3 g. | Meridian Ribboners | Cotton States League | , | |
| Edward Preston | 1906 | 5/17-9/10+ | Tecumseh | Southern Michigan League | , | ||
| Walt Preston | presto002wal | 1906 | 91 g. | Galveston Sand Crabs | South Texas League | , | |
| Price | 1906 | +6/4-7/14+ | Guthrie Senators | South Central League | , | ||
| Price | 1906 | +7/26+ | Freeport Pretzels | Wisconsin State League | , | ||
| Howard Price | price-001how | 1906 | 4/28-7/15+ | Fort Smith Razorbacks | South Central League | , | |
| Howard Price | price-001how | 1906 | +7/29-7/30+ | Muskogee Indians | South Central League | , | |
| Howard Price | price-001how | 1906 | 8/14-8/29 | Webb City Goldbugs | Western Association | , | |
| Norman Price | price-001how | 1906 | 5/17-7/20 | Guthrie Senators | South Central League | , | |
| Sunny Price | 1906 | 5/24-9/15 | Washington | Pennsylvania-Ohio-Maryland League | , | ||
| Sunny Price | 1906 | Wash.& Jefferson | College | , | |||
| Ted Price | price-001e-- | 1906 | +5/8-9/11 | Wheeling Stogies | Central League | , | |
| William Price | 1906 | 9/9-9/28 | Pueblo Indians | Western League | , | ||
| Baldy Prior | 1906 | Huntingburg IN | Independent | , | |||
| Baldy Prior | 1906 | +7/22-9/17+ | Boonville IN | Independent | , | ||
| Baldy Prior | 1906 | 9/3- | Evansville River Rats | Central League | , | ||
| Baldy Prior | 1906 | +10/9+ | Huntingburg IN | Independent | , | ||
| Billy Prout | prout-002wil | 1906 | 95 g. | Mobile Sea Gulls | Cotton States League | , | |
| Tex Pruiett | pruiet001cha | 1906 | 4/25-7/4 | Dallas Giants | Texas League | , | |
| Tex Pruiett | pruiet001cha | 1906 | 7/11-9/16 | St. Paul Saints | American Association | , | |
| Puckett | 1906 | Selma AL | Independent | , | |||
| Billy Pugh | pugh--001w-- | 1906 | Erie Sailors | Interstate League | , | ||
| Billy Pugh | pugh--001w-- | 1906 | Kane Mountaineers | Interstate League | , | ||
| Nate Pulsifer | pulsif001nat | 1906 | 5/25-9/8 | Haverhill Hustlers | New England League | , | |
| Frederick Purcell | purcel001the | 1906 | 5/13-9/18 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Billy Purtell | purtel002wil | 1906 | +6/11-9/16 | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Putty Putnam | 1906 | 5/3-9/9 | Parsons Preachers | Kansas State League | , | ||
| Ambrose Puttmann | puttma001amb | 1906 | - 5/10 | 4 g. | St. Louis | National League | St. Louis, MO |
| Ambrose Puttmann | puttma001amb | 1906 | 5/24-9/16 | Louisville Colonels | American Association | , | |
| William Pylant | pylant001w-- | 1906 | 43 g. | Meridian Ribboners | Cotton States League | , | |
| Arthur Queisser | quisse001art | 1906 | 106 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | |
| Arthur Queisser | quisse001art | 1906 | Cairo Giants | Kentucky-Illinois-Tennessee League | , | ||
| Walter Queisser | queiss001wal | 1906 | 5/7-5/18 | Wichita Jobbers | Western Association | , | |
| Walter Queisser | queiss001wal | 1906 | 5/22-9/23 | Leavenworth Old Soldiers | Western Association | , | |
| Walter Queisser | queiss001wal | 1906 | 78 g. | Wichita Jobbers | Western Association | , | |
| Walter Queisser | queiss001wal | 1906 | Leavenworth Old Soldiers | Western Association | , | ||
| Eddie Quick | quick-001edw | 1906 | 5/19-5/25 | Omaha Rourkes | Western League | , | |
| Eddie Quick | quick-001edw | 1906 | 6/12-9/7 | Little Rock Travelers | Southern Association | , | |
| Harry Quick | quick-001har | 1906 | 4/28-5/3 | Tacoma Tigers | Northwestern League | , | |
| Arthur Quiesser | 1906 | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | |||
| Arthur Quiesser | 1906 | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |||
| Frank Quigg | quigg-001fra | 1906 | Umpire | South Texas League | , | ||
| Ernest Quigley | quigle001ern | 1906 | 6/26-7/14+ | Shawnee Blues | South Central League | , | |
| Frank Quigley | quigle001fra | 1906 | 4/26-6/2 | Evansville River Rats | Central League | , | |
| Frank Quigley | quigle001fra | 1906 | 45 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| Lee Quillin | quille001leo | 1906 | 5/2-9/23 | Lincoln Ducklings | Western League | , | |
| Lee Quillin | quille001leo | 1906 | 9/30- | 4 g. | Chicago | American League | Chicago, IL |
| Larry Quinlan | quinla001law | 1906 | 4/18-9/16 | Louisville Colonels | American Association | , | |
| Quinn | 1906 | 5 g. | La Crosse Pinks | Wisconsin State League | , | ||
| Frank Quinn | quinn-006fra | 1906 | 7/30- | Terre Haute Hottentots | Central League | , | |
| Jack Quinn | quinn-004joh | 1906 | Hornell/Patton Pigmies | Interstate League | , | ||
| Robert Quinn | 1906 | 4/27-9/25 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | ||
| Tad Quinn | quinn-001cla | 1906 | 7/13-7/15 | Waterbury Authors | Connecticut State League | , | |
| Roy Radebaugh | 1906 | 5/6-9/11 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | ||
| Roy Radebaugh | 1906 | 15 g. | Marshalltown Brownies | Iowa League | , | ||
| J. Radford | radfor001j-- | 1906 | Oakland Commuters | California League | , | ||
| J. Radford | radfor001j-- | 1906 | Alameda Grays | California League | , | ||
| Paul Radford | radfor002pau | 1906 | 4/27-6/1 | Lynn Shoemakers | New England League | , | |
| J. E. Radis | radis-000je- | 1906 | +6/3+ | Great Falls MT | Independent | , | |
| Jack Rafferty | raffer001joh | 1906 | 6/7-6/10 | Umpire | Ohio-Pennsylvania League | , | |
| Jack Rafferty | raffer001joh | 1906 | 7/7-7/9 | Umpire | Ohio-Pennsylvania League | , | |
| Jack Rafter | rafter001joh | 1906 | 4/28-5/22 | Lowell Tigers | New England League | , | |
| Jack Rafter | rafter001joh | 1906 | 5/29-8/23 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Tom Raftery | rafter001tho | 1906 | 4/16-9/3 | Charleston Sea Gulls | South Atlantic League | , | |
| William Raftis | 1906 | 4/18-4/30 | Indianapolis Indians | American Association | , | ||
| William Raftis | 1906 | 5/6-9/17 | Lancaster Lanks | Ohio-Pennsylvania League | , | ||
| Arthur Ragan | reagan001art | 1906 | 4/18-9/15 | Birmingham Barons | Southern Association | , | |
| James Ragan | 1906 | Umpire | Western Association | , | |||
| Steven Ragan | ragan-001ste | 1906 | 5/4-9/23 | Topeka White Sox | Western Association | , | |
| William Ragan | 1906 | +7/28-9/23 | Jackson Convicts | Southern Michigan League | , | ||
| Benjamin Ragsdale | ragsda001ben | 1906 | 4/25-9/2 | Dallas Giants | Texas League | , | |
| Joe Raidy | raidy-001jos | 1906 | 5/8-5/19 | Jersey City Skeeters | Eastern League | , | |
| Joe Raidy | raidy-001jos | 1906 | 5/22-9/23 | Albany Senators | New York State League | , | |
| Edward Rainey | rainey001e-- | 1906 | 5/1-5/8 | Savannah Indians | South Atlantic League | , | |
| Daniel Raley | 1906 | 4/21-5/15 | Memphis Egyptians | Southern Association | , | ||
| Daniel Raley | 1906 | 5/24-9/15 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| John Raley | 1906 | 4/25-6/17 | Greenville Hunters | Texas League | , | ||
| John Raley | 1906 | 6/26-7/2 | St. Paul Saints | American Association | , | ||
| John Raley | 1906 | 8/12-9/15 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Ross Raley | 1906 | 5/24-9/4 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Doc Ralston | ralsto001sam | 1906 | 8/6-9/11 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| William Ramberger | ramber001--- | 1906 | 5/3-5/16+ | Albany | Georgia State League | , | |
| William Ramberger | ramber001--- | 1906 | 4 g. | South Bend Greens | Central League | , | |
| John Ramey | ramey-002joh | 1906 | 5/3-7/31+ | 90 g. | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , |
| Ramsey | 1906 | +5/25-7/7 | Cordele | Georgia State League | , | ||
| Everett Ramsey | 1906 | Carrolton KS | Independent | , | |||
| George Ramsey | ramsey001geo | 1906 | 26 g. | Green Bay Colts | Wisconsin State League | , | |
| George Ramsey | ramsey001geo | 1906 | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| George Ramsey | ramsey002geo | 1906 | 5/12-6/2 | Baltimore Orioles | Eastern League | , | |
| George Ramsey | ramsey002geo | 1906 | 6/26-8/19 | Binghamton Bingoes | New York State League | , | |
| George Ramsey | ramsey002geo | 1906 | 8/16-9/18 | Baltimore Orioles | Eastern League | , | |
| Hank Ramsey | ramsey001hen | 1906 | 5/15-9/9 | Paterson Intruders | Hudson River League | , | |
| Harry Rand | rand--002--- | 1906 | 8/2-8/12 | Leavenworth Old Soldiers | Western Association | , | |
| Randall | 1906 | Lake Charles Creoles | South Texas League | , | |||
| Newt Randall | randal001new | 1906 | 5/2-9/30 | Denver Grizzlies | Western League | , | |
| William Rankin | rankin001wil | 1906 | 4/26-9/3 | New London Whalers | Connecticut State League | , | |
| Edward Ransick | ransic001edw | 1906 | 4/16-9/3 | Augusta Tourists | South Atlantic League | , | |
| Julian Ransom | 1906 | 4/28-5/22 | Cleburne Railroaders | Texas League | , | ||
| Frederick Ransome | ransom001fra | 1906 | , | ||||
| Louis Rapp | rapp--001lou | 1906 | 4/26-5/3 | Montreal Royals | Eastern League | , | |
| Louis Rapp | rapp--001lou | 1906 | 8/9-8/14 | Altoona Mountaineers | Tri-State League | , | |
| Otto Rapp | rapp--001ott | 1906 | 7/7 | Montreal Royals | Eastern League | , | |
| William Rapp | 1906 | 6/29-8/1 | Shreveport Pirates | Southern Association | , | ||
| William Rapp | 1906 | 8/16-9/15 | New Orleans Pelicans | Southern Association | , | ||
| William Rapps | rapps-001wil | 1906 | 5/4-7/25 | Leavenworth Old Soldiers | Western Association | , | |
| William Rapps | rapps-001wil | 1906 | 7/26-9/23 | Wichita Jobbers | Western Association | , | |
| Clarence Rarey | 1906 | 5/28-9/15 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| Michael Ratchford | 1906 | 7/12-9/3 | Macon Brigands | South Atlantic League | , | ||
| Charles Rathburn | 1906 | Denver Grizzlies | Western League | , | |||
| Charles Rathburn | 1906 | 5/4-5/17 | Wichita Jobbers | Western Association | , | ||
| Charles Rathburn | 1906 | 5/19-6/1 | Leavenworth Old Soldiers | Western Association | , | ||
| Charles Rathburn | 1906 | 33 g. | Ottumwa Champs | Iowa League | , | ||
| Jimmy Raub | raub--001jam | 1906 | Hudson Marines | Hudson River League | , | ||
| Tommy Raub | raub--001tho | 1906 | -6/22 | 24 g. | St. Louis | National League | St. Louis, MO |
| Tommy Raub | raub--001tho | 1906 | 6/26-9/23 | Montreal Royals | Eastern League | , | |
| Fred Raymer | raymer001fre | 1906 | 4/25-9/13 | Johnstown Johnnies | Tri-State League | , | |
| Bugs Raymond | raymon001art | 1906 | 4/11-5/2 | Atlanta Crackers | Southern Association | , | |
| Bugs Raymond | raymon001art | 1906 | 6/2-9/3 | Savannah Indians | South Atlantic League | , | |
| Bugs Raymond | raymon001art | 1906 | 9/12-9/14 | Freeport Pretzels | Wisconsin State League | , | |
| Tealey Raymond | raymon002fra | 1906 | San Francisco Orphans | California League | , | ||
| Tealey Raymond | raymon002fra | 1906 | 117 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Wendell Raymond | 1906 | Elmira NY | Independent | , | |||
| Ben Reab | 1906 | 45 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Reagan | 1906 | Chic. Junction OH | Independent | , | |||
| Reagan | 1906 | 6/6-6/15 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Reagan | 1906 | 7/14-7/28 | Baton Rouge Cajuns | Cotton States League | , | ||
| Edward Reagan | 1906 | +5/19-6/27+ | Cordele | Georgia State League | , | ||
| James Reagan | 1906 | 7/1-7/23 | Umpire | Western Association | , | ||
| Steve Reagan | reagan001ste | 1906 | 5/4- | 119 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , |
| Phil Reardon | reardo001phi | 1906 | Brooklyn | National League | Brooklyn, NY | ||
| Leonard Reddick | 1906 | preseason | Topeka White Sox | Western Association | , | ||
| Leonard Reddick | 1906 | 60 g. | Bartlesville Indians | Kansas State League | , | ||
| Wallace Reddick | reddic001wal | 1906 | no g. | Louisville Colonels | American Association | , | |
| Wallace Reddick | reddic001wal | 1906 | 5/2-9/29 | Denver Grizzlies | Western League | , | |
| Redding | 1906 | 6/27-6/30 | Fall River Indians | New England League | , | ||
| Harry Redman | redman001har | 1906 | 5/5-5/7 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Harry Redman | redman001har | 1906 | 5/26- | Kent OH | Independent | , | |
| Harry Redman | redman001har | 1906 | 6/8-7/2 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Harry Redman | redman001har | 1906 | 9/29 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Harry Redmond | redmon001har | 1906 | 5/24- | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Benno Reeb | 1906 | 45 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Charles Reed | 1906 | 4/25-6/30 | Greenville Hunters | Texas League | , | ||
| Charles Reed | 1906 | 7/1-7/23 | Waco Navigators | Texas League | , | ||
| Edward Reed | reed--001edw | 1906 | 5/3-6/30 | Erie Sailors | Interstate League | , | |
| Edward Reed | reed--001edw | 1906 | +7/22-7/28+ | Battle Creek Crickets | Southern Michigan League | , | |
| Francis Reed | 1906 | 5/11-9/19 | Albany Senators | New York State League | , | ||
| George Reed | reed--003geo | 1906 | Mobile Sea Gulls | Cotton States League | , | ||
| George Reed | 1906 | McPherson KS | Independent | , | |||
| Thomas Reed | reed--001tho | 1906 | 5/4-9/23 | Springfield Midgets | Western Association | , | |
| W. Reed | 1906 | 8/28-8/30 | Cleburne Railroaders | Texas League | , | ||
| Frank Reeder | 1906 | Lafayette College | College | , | |||
| Frank Reeder | 1906 | 6/26-7/11 | Harrisburg Senators | Tri-State League | , | ||
| Frank Reeder | 1906 | 7/12-7/23 | York Penn Parks | Tri-State League | , | ||
| Frank Reeder | 1906 | 8/2-8/15 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Frank Reeder | 1906 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |||
| Frank Reeder | 1906-10 | U. Michigan Med | College | , | |||
| Grover Reeder | reeder002gro | 1906 | 5/6-5/19 | Sioux City Packers | Western League | , | |
| Grover Reeder | reeder002gro | 1906 | 5/24-8/15 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | |
| Frank Reel | 1906 | 6/7+ | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Charles Reese | reese-001cha | 1906 | 4/29-5/30 | Fort Smith Razorbacks | South Central League | , | |
| Charles Reese | reese-001cha | 1906 | 6/4-7/31 | Muskogee Indians | South Central League | , | |
| Ralph Reeve | 1906 | Dartmouth Col | College | , | |||
| Ralph Reeve | 1906 | 5/21-9/8 | Richmond Colts | Virginia League | , | ||
| John Reeves | 1906 | Waynesburg Col. | College | , | |||
| John Reeves | 1906 | +6/15+ | Charleroi PA | Independent | , | ||
| John Reeves | 1906 | 6/30-9/12 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Rufus Refrange | 1906 | New London Whalers | Connecticut State League | , | |||
| Joseph Reggy | 1906 | 4/26-9/8 | Danville Red Sox | Virginia League | , | ||
| Frank Reich | 1906 | 5/5 | Parsons Preachers | Kansas State League | , | ||
| William Reid | 1906 | 5/3-7/5 | Coffeyville Bricks | Kansas State League | , | ||
| Bill Reidy | reidy-001wil | 1906 | 50 g. | Oakland Oaks | Pacific Coast League | , | |
| Alexander Reilley | reille001ale | 1906 | 85 g. | Erie Sailors | Interstate League | , | |
| Emmett Reilly | 1906 | 9/25 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Josh Reilly | reilly002wil | 1906 | San Jose Prune Pickers | California State League | , | ||
| Tom Reilly | reilly002tho | 1906 | 4/19-9/4 | Gulfport Crabs | Cotton States League | , | |
| Clifford Reinhart | 1906 | Covington KY | Independent | , | |||
| Phil Reisinger | reisin001phi | 1906 | 4/11-4/14 | Nashville Volunteers | Southern Association | , | |
| Phil Reisinger | reisin001phi | 1906 | 4/26-9/3 | Charleston Sea Gulls | South Atlantic League | , | |
| Doc Reisling | reisli001fra | 1906 | 4/25-5/10 | Altoona Mountaineers | Tri-State League | , | |
| Doc Reisling | reisli001fra | 1906 | 5/22-9/12 | Lancaster Red Roses | Tri-State League | , | |
| Andrew Reiss | reiss-001and | 1906 | 4/28-9/7 | Lynchburg Shoemakers | Virginia League | , | |
| George Reitz | reitz-001geo | 1906 | 5/3-8/25+ | Dubuque Dubs | Illinois-Indiana-Iowa League | , | |
| Henry Reitz | reitz-001hen | 1906 | no g. | San Antonio Bronchos | South Texas League | , | |
| Henry Reitz | reitz-001hen | 1906 | 4/25-5/23 | Waco Navigators | Texas League | , | |
| Henry Reitz | reitz-001hen | 1906 | +6/15-7/11 | Guthrie Senators | South Central League | , | |
| Clarence Relf | reid--001r-- | 1906 | 6/25-8/11 | Georgetown | South Carolina League | , | |
| Clarence Relf | reid--001r-- | 1906 | +9/15+ | NOrl-Parker-Blake | Semi-professional | , | |
| Art Relihan | reliha001art | 1906 | Univ. of Kansas | College | , | ||
| Butch Rementer | rement001wil | 1906 | 4/25-9/14 | Lancaster Red Roses | Tri-State League | , | |
| Frank Renfro | 1906 | 5/4-5/17 | Independence Coyotes | Kansas State League | , | ||
| Perry Reniker | 1906 | 7/17-9/30 | Pueblo Indians | Western League | , | ||
| Enoch Ressegiue | resseq000eug | 1906 | Kingston Colonials | Hudson River League | , | ||
| Arthur Reuber | 1906 | 5/3-5/25 | Chanute Browns | Kansas State League | , | ||
| Arthur Reuber | 1906 | 5/30-9/9 | Bartlesville Indians | Kansas State League | , | ||
| Ed Reulbach | reulba001edw | 1906 | Chicago | National League | Chicago, IL | ||
| Robert Revelle | 1906 | 59 g. | Portsmouth Truckers | Virginia League | , | ||
| Reynolds | 1906 | +6/18+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| Reynolds | 1906 | 6/28 | Williamsport Millionaires | Tri-State League | , | ||
| Frank Reynolds | reynol002fra | 1906 | 7/24-7/28+ | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Frank Reynolds | reynol002fra | 1906 | 8/14-9/29 | Mansfield Giants | Ohio-Pennsylvania League | , | |
| Fred Reynolds | 1906 | 7/21 | Lawrence Colts | New England League | , | ||
| Jack Reynolds | 1906 | Atlantic City NJ | Independent | , | |||
| Jesse Reynolds | reynol001jes | 1906 | +5/5+ | Marion | Interstate Association | , | |
| Jesse Reynolds | reynol001jes | 1906 | 44 g. | Ottumwa Champs | Iowa League | , | |
| Jesse Reynolds | reynol001jes | 1906 | 9/24-9/29 | Denver Grizzlies | Western League | , | |
| John Reynolds | 1906 | 5/5-5/7+ | Americus Pallbearers | Georgia State League | , | ||
| Tommy Reynolds | reynol001tho | 1906 | 4/27-5/23 | Portsmouth Truckers | Virginia League | , | |
| Tommy Reynolds | reynol001tho | 1906 | 6/5-6/6 | Danville Red Sox | Virginia League | , | |
| Tommy Reynolds | reynol001tho | 1906 | 6/11-6/19 | Norfolk Tars | Virginia League | , | |
| Tommy Reynolds | reynol001tho | 1906 | 7/5-7/11 | Roanoke Tigers | Virginia League | , | |
| Rhoades | 1906 | 34 g. | Green Bay Colts | Wisconsin State League | , | ||
| Charlie Rhodes | rhodes001cha | 1906 | 5/3- | 6 g. | Parsons Preachers | Kansas State League | , |
| Charlie Rhodes | rhodes001cha | 1906 | 7/26- | 9 g. | St. Louis | National League | St. Louis, MO |
| Frank Rhoton | rhoton001fra | 1906 | 4/26-7/18 | Macon Brigands | South Atlantic League | , | |
| Rice | 1906 | San Francisco Orphans | California League | , | |||
| Rice | 1906 | 6/11-7/17 | Orangeburg | South Carolina League | , | ||
| Arthur Rice | rice--001art | 1906 | Kingston Colonials | Hudson River League | , | ||
| Arthur Rice | rice--001art | 1906 | New Haven Blues | Connecticut State League | , | ||
| Laurence Rice | rice--001law | 1906 | 6/6-9/8 | Waterbury Authors | Connecticut State League | , | |
| Lew Rice | rice--018--- | 1906 | Presidio Soldiers | California State League | , | ||
| Rich | 1906 | Kansas State League | , | ||||
| Richards | 1906 | 9/20-9/22 | Topeka White Sox | Western Association | , | ||
| Richards | 1906 | Lake Charles Creoles | South Texas League | , | |||
| C. Richards | 1906 | +5/19+ | Cordele | Georgia State League | , | ||
| Frank Richards | richar001fra | 1906 | 127 g. | Burlington Pathfinders | Iowa League | , | |
| Richardson | 1906 | Americus Pallbearers | Georgia State League | , | |||
| Albert Richardson | richar001a-- | 1906 | Austin Senators | South Texas League | , | ||
| Albert Richardson | richar001a-- | 1906 | 13 g. | Austin Senators | South Texas League | , | |
| Albert Richardson | 1906 | 6/17-6/21 | Meridian Ribboners | Cotton States League | , | ||
| Albert Richardson | 1906 | 6/27-6/28 | Vicksburg Hill Billies | Cotton States League | , | ||
| Bill Richardson | richar006wil | 1906 | 4/26-7/1 | South Bend Greens | Central League | , | |
| Bill Richardson | richar006wil | 1906 | 7/6-9/25 | Dayton Veterans | Central League | , | |
| Bill Richardson | richar006wil | 1906 | Hornell/Patton Pigmies | Interstate League | , | ||
| Samuel Richardson | 1906 | 6/11-8/18 | Camden | South Carolina League | , | ||
| W. G.? Richardson | 1906 | 6/16-6/21 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| W. G.? Richardson | 1906 | 6/28-7/1 | Joplin Miners | Western Association | , | ||
| Walter Richardson | richar001wal | 1906 | 5/4- | Fort Scott Giants | Kansas State League | , | |
| Walter Richardson | richar001wal | 1906 | 25 g. | Independence Coyotes | Kansas State League | , | |
| F. Richie | 1906 | 7/23-9/7 | Danville Red Sox | Virginia League | , | ||
| Lew Richie | richie001elw | 1906 | 5/8- | 33 g. | Philadelphia | National League | Philadelphia, PA |
| Walter Rickard | 1906 | 4/26-9/8 | Danville Red Sox | Virginia League | , | ||
| Joe Rickert | ricker001jos | 1906 | 4/20-9/15 | New Orleans Pelicans | Southern Association | , | |
| Branch Rickey | rickey001wes | 1906 | 65 g. | St. Louis | American League | St. Louis, MO | |
| Riddell | 1906 | Tac.-Daily News | Amateur | , | |||
| Riddell | 1906 | 7/1 | Tacoma Tigers | Northwestern League | , | ||
| Riddick | 1906 | Tacoma Tigers | Northwestern League | , | |||
| Riddick | 1906 | Taco-Arlington | Amateur | , | |||
| Dorsey Riddlemoser | riddle002dor | 1906 | no g. | Richmond Colts | Virginia League | , | |
| Ridgely | 1906 | 8/6 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Jack Ridgway | ridgwa001jac | 1906 | Hershey PA | Independent | , | ||
| George Rigby | rigby-003--- | 1906 | 5/31 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| George Rigby | rigby-003--- | 1906 | Summit PA | Independent | , | ||
| Arthur Riggs | riggs-002art | 1906 | Camden Ouachitas | Arkansas-Texas League | , | ||
| Robert Riggs | riggs-002rob | 1906 | 4/26-5/11 | Toronto Maple Leafs | Eastern League | , | |
| Robert Riggs | riggs-002rob | 1906 | 5/17-8/9 | Albany Senators | New York State League | , | |
| Robert Riggs | riggs-002rob | 1906 | 8/11-8/29 | Troy Trojans | New York State League | , | |
| Robert Riggs | riggs-002rob | 1906 | 9/4-9/23 | Syracuse Stars | New York State League | , | |
| Charles Rigler | rigler001cy- | 1906 | Kenyon College | College | , | ||
| Riley | 1906 | 4/14 | Nashville Volunteers | Southern Association | , | ||
| Daniel Riley | riley-001dan | 1906 | Fort Wayne | Interstate Association | , | ||
| Ed. Riley | 1906 | Nelsonville | Independent | , | |||
| Ed. Riley | 1906 | ColumbusOH- | Sunday | , | |||
| Frank Ripley | ripley001fra | 1906 | 4/28-5/7 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| John Rippen | 1906 | 5/3-5/10 | Coffeyville Bricks | Kansas State League | , | ||
| Pop Rising | rising001per | 1906 | 4/26-9/8 | New London Whalers | Connecticut State League | , | |
| Dud Risley | risley001dud | 1906 | 5/4-9/14 | Oklahoma City Mets | Western Association | , | |
| Fred Ritchie | 1906 | Seattle Siwashes | Pacific Coast League | , | |||
| Albert Ritter | ritter001alb | 1906 | +7/1+ | Texarkana Shine-Oners | Arkansas-Texas League | , | |
| Harvey Ritter | ritter002har | 1906 | 4/26-4/30 | Waterbury Authors | Connecticut State League | , | |
| Harvey Ritter | ritter002har | 1906 | Read.-AllSchoolastic | Independent | , | ||
| Harvey Ritter | ritter002har | 1906 | 7/27-7/28 | Mansfield Giants | Ohio-Pennsylvania League | , | |
| John Roach | roach-003joh | 1906 | 26 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Mike Roach | roach-001mik | 1906 | 5/11-9/23 | Binghamton Bingoes | New York State League | , | |
| Roxey Roach | roach-001wil | 1906 | Punxsutawney Policemen | Interstate League | , | ||
| Skel Roach | roach-001rud | 1906-09 | , | ||||
| Frederick Robarge | robarg001fre | 1906 | 4/26-9/8 | Springfield Ponies | Connecticut State League | , | |
| Clay Robb | robb--001cla | 1906 | 39 g. | Beaumont Oilers | South Texas League | , | |
| Roberts | 1906 | 7/27-7/28 | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Harry Roberts | robert003har | 1906 | 30 g. | Gulfport Crabs | Cotton States League | , | |
| John Roberts | 1906 | 4/28-4/30 | Lawrence Colts | New England League | , | ||
| Robertson | 1906 | 23 g. | New London Whalers | Connecticut State League | , | ||
| James Robertson | robert007jam | 1906 | 5/10-9/22 | Wilkes-Barre Barons | New York State League | , | |
| William Robertson | robert009wil | 1906 | 4/28- | 58 g. | Wheeling Stogies | Central League | , |
| Robinson | 1906 | 5/3-5/12 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Robinson | 1906 | 5/20 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Robinson | 1906 | 6/11-6/12 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Robinson | 1906 | 8/13 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Jack Robinson | robins006joh | 1906 | 4/16-6/4 | Jacksonville Jays | South Atlantic League | , | |
| Jack Robinson | robins006joh | 1906 | 6/11-8/21 | Macon Brigands | South Atlantic League | , | |
| James Robinson | robins009j-- | 1906 | Canton Chinamen | Central League | , | ||
| Joshua Robinson | robins005jos | 1906 | 5/1-9/6 | New Bedford Whalers | New England League | , | |
| McCain Robinson | 1906 | 4/21-8/31 | Jackson Senators | Cotton States League | , | ||
| Rabbit Robinson | robins003wil | 1906 | 4/30-9/16 | Milwaukee Brewers | American Association | , | |
| Rabbit Robinson | robins003wil | 1906 | San Francisco Seals | Pacific Coast League | , | ||
| Chick Robitaille | robita001jos | 1906 | 4/19-9/16 | Columbus Senators | American Association | , | |
| Robson | 1906 | 5/8-5/9 | Pueblo Indians | Western League | , | ||
| Mike Rochford | rochfo001mic | 1906 | 5/10-5/18 | Utica Pent-Ups | New York State League | , | |
| Rochon | 1906 | West Seattle | Independent | , | |||
| Roy Rock | rock--002roy | 1906 | 4/26-9/22 | Providence Grays | Eastern League | , | |
| Ike Rockenfield | rocken001isa | 1906 | 5/23-8/7 | St. Paul Saints | American Association | , | |
| Ike Rockenfield | rocken001isa | 1906 | 22 g. | Seattle Siwashes | Pacific Coast League | , | |
| Ike Rockenfield | rocken001isa | 1906 | -10/7 | 27 g. | St. Louis | American League | St. Louis, MO |
| Thomas Roddy | 1906 | 7/21 | Lowell Tigers | New England League | , | ||
| Edward Rodebaugh | rodeba001edw | 1906 | 4/26-7/22 | Dallas Giants | Texas League | , | |
| Edward Rodebaugh | rodeba001edw | 1906 | 8/3-9/17 | St. Paul Saints | American Association | , | |
| Chester Rodgers | rodger001che | 1906 | Alameda Grays | California League | , | ||
| Chester Rodgers | rodger001che | 1906 | San Francisco Orphans | California League | , | ||
| Chester Rodgers | rodger001che | 1906 | 3 g. | Fresno Raisin Eaters | Pacific Coast League | , | |
| Chester Rodgers | rodger001che | 1906 | San Francisco Seals | Pacific Coast League | , | ||
| Clarence Rodman | rodman001c-- | 1906 | +7/29+ | ButteMT | Independent | , | |
| Joe Roe | roe---001jos | 1906 | 5/1-5/23 | Shawnee Blues | South Central League | , | |
| Harry Roeper | 1906 | 5/25-7/14 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Cleve Rogers | 1906 | SWTX Tele & Tele | Independent | , | |||
| Cleve Rogers | 1906 | 7/21-8/27 | Fort Worth Panthers | Texas League | , | ||
| Edward Rogers | 1906 | Hot Springs Vapors | Arkansas-Texas League | , | |||
| Emmett Rogers | rogers002emm | 1906 | 4/28-8/6 | Fort Smith Razorbacks | South Central League | , | |
| Fred Rogers | rogers002fra | 1906 | 5/3-6/7 | Lincoln Ducklings | Western League | , | |
| Fred Rogers | rogers002fra | 1906 | 7/1-8/5 | Omaha Rourkes | Western League | , | |
| Fred Rogers | rogers002fra | 1906 | 8/19-9/30 | Lincoln Ducklings | Western League | , | |
| James Rogers | rogers004jam | 1906 | 5/19-7/29 | Hancock Infants | Northern-Copper Country League | , | |
| James Rogers | rogers004jam | 1906 | +8/6-9/3 | Calumet Aristocrats | Northern-Copper Country League | , | |
| Terry Rogers | rogers001ter | 1906 | 4/26-5/7 | Waterbury Authors | Connecticut State League | , | |
| Terry Rogers | rogers001ter | 1906 | 5/11-6/4 | Bridgeport Orators | Connecticut State League | , | |
| Terry Rogers | rogers001ter | 1906 | 7/7-8/24 | Umpire | Connecticut State League | , | |
| William Rogers | rogers001wil | 1906 | 4/30-9/8 | Waterbury Authors | Connecticut State League | , | |
| William Rogers | rogers003wil | 1906 | no g. | Des Moines Champs | Western League | , | |
| William Rogers | rogers003wil | 1906 | 5/29-9/15 | Washington | Pennsylvania-Ohio-Maryland League | , | |
| William Rogers | 1906 | Lake Charles Creoles | South Texas League | , | |||
| George Rohe | rohe--001geo | 1906 | Chicago | American League | Chicago, IL | ||
| Dick Rohn | rohn--001ric | 1906 | 5/4-9/23 | Webb City Goldbugs | Western Association | , | |
| William Roland | roland001wil | 1906 | 132 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| Rolf | 1906 | Americus Pallbearers | Georgia State League | , | |||
| Ferdinand Rollander | rollan001--- | 1906 | San Francisco Orphans | California League | , | ||
| Ferdinand Rollander | rollan001--- | 1906 | 9/5 | Fresno Raisin Eaters | Pacific Coast League | , | |
| Raymond Rolling | rollin001ray | 1906 | 29 g. | Webb City Goldbugs | Western Association | , | |
| Pat Rollins | rollin001hen | 1906 | 7/19-9/8 | Umpire | Virginia League | , | |
| A. J. Romer | 1906 | 8/21-8/30 | Wilkes-Barre Barons | New York State League | , | ||
| Thomas Ronan | 1906 | 5/1-6/17 | Toronto Maple Leafs | Eastern League | , | ||
| Thomas Ronan | 1906 | 6/29-9/16 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | ||
| Jerry Ronesch | ronesc001jer | 1906 | Fargo | Northern-Copper Country League | , | ||
| Roons | 1906 | +5/23+ | Winnipeg Maroons | Northern-Copper Country League | , | ||
| John Root | root--001joh | 1906 | 5/6-9/21 | Oklahoma City Mets | Western Association | , | |
| Hugh Rorty | 1906 | 6/26-9/7 | Umpire | Connecticut State League | , | ||
| Charles Rose | rose--004cha | 1906 | 5/19-9/3 | Fargo | Northern-Copper Country League | , | |
| John Rose | 1906 | 4/26-6/9 | Richmond Colts | Virginia League | , | ||
| John Rose | 1906 | 6/22-6/23 | Lynchburg Shoemakers | Virginia League | , | ||
| John Rose | 1906 | 7/4 | Roanoke Tigers | Virginia League | , | ||
| John Rose | 1906 | 9/4 | Danville Red Sox | Virginia League | , | ||
| Ross | 1906 | 5/28-7/27 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Art Ross | ross--001art | 1906 | 28 g. | Los Angeles Angels | Pacific Coast League | , | |
| Frank Ross | 1906 | 5/3-5/6 | Guthrie Senators | South Central League | , | ||
| Lehman Ross | 1906 | 5/28-7/27 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| William Ross | 1906 | 5/12 | Newark Sailors | Eastern League | , | ||
| William Ross | 1906 | 5/15 | Utica Pent-Ups | New York State League | , | ||
| William Ross | 1906 | 6/15-8/3 | Johnstown Johnnies | Tri-State League | , | ||
| F. E. Rossbach | 1906 | 5/15-5/27 | Battle Creek Crickets | Southern Michigan League | , | ||
| Henry Rossback | 1906-07 | SD Agricultural | College | , | |||
| Claude Rossman | rossma001cla | 1906 | 118 g. | Cleveland | American League | Cleveland, OH | |
| Andy Roth | roth--001and | 1906 | 5/18-9/21 | Scranton Miners | New York State League | , | |
| Bill Roth | roth--001wil | 1906 | +6/2-9/23 | Mount Clemens Bathers | Southern Michigan League | , | |
| Frank Roth | roth--001fra | 1906 | 4/18-9/7 | Milwaukee Brewers | American Association | , | |
| Frank Roth | roth--001fra | 1906 | 16 g. | Chicago | American League | Chicago, IL | |
| Walter Roth | 1906 | 5/4-7/4 | Fort Scott Giants | Kansas State League | , | ||
| Walter Roth | 1906 | 7/13-8/2 | Tulsa Oilers | South Central League | , | ||
| Walter Roth | 1906 | -9/9 | 36 g. | Bartlesville Indians | Kansas State League | , | |
| Bobby Rothermel | rother001bob | 1906 | 4/28-6/5 | Lowell Tigers | New England League | , | |
| Bobby Rothermel | rother001bob | 1906 | 6/14-9/17 | Mansfield Giants | Ohio-Pennsylvania League | , | |
| Jack Rothfuss | rothfu001jac | 1906 | 4/25-5/24 | Harrisburg Senators | Tri-State League | , | |
| Claude Rothgeb | rothge001cla | 1906 | 4/18-5/30 | Indianapolis Indians | American Association | , | |
| Claude Rothgeb | rothge001cla | 1906 | 6/16-8/7 | Troy Trojans | New York State League | , | |
| Allen Roudebush | 1906 | 6/20-9/15 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Allen Roudebush | 1906-09 | Harvard Law | College | , | |||
| Billy Rourke | rourke001wil | 1906 | 5/2-9/30 | Omaha Rourkes | Western League | , | |
| Dave Rowan | rowan-001dav | 1906 | 5/1-9/3 | Spokane Indians | Northwestern League | , | |
| Jack Rowan | rowan-001joh | 1906 | 5/7-8/29 | Leavenworth Old Soldiers | Western Association | , | |
| Jack Rowan | rowan-001joh | 1906 | 9/6 | Detroit | American League | Detroit, MI | |
| Rowe | 1906 | +4/20+ | Gettysburg Col. | College | , | ||
| Rowe | 1906 | 6/15-7/11 | Portsmouth Truckers | Virginia League | , | ||
| Rowe | 1906 | Tarboro | , | ||||
| Dutch Rowland | 1906 | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |||
| Charlie Roy | roy---001cha | 1906 | +4/20+ | Carlisle Indian | School | , | |
| Charlie Roy | roy---001cha | 1906 | 6/27-8/10 | Philadelphia | National League | Philadelphia, PA | |
| Charlie Roy | roy---001cha | 1906 | 9/2-9/17 | Newark Sailors | Eastern League | , | |
| Royer | 1906 | Austin Senators | South Texas League | , | |||
| Jesse Ruby | ruby--001jes | 1906 | 5/3-6/? | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Jesse Ruby | ruby--001jes | 1906 | 6/26-9/16 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Nap Rucker | rucker001geo | 1906 | 4/17-9/3 | Augusta Tourists | South Atlantic League | , | |
| Orlando Rudd | rudd--001o-- | 1906 | 59 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Frank Rudderham | rudder001fra | 1906 | 4/11-9/15 | Umpire | Southern Association | , | |
| John Rudinski | rudins001joh | 1906 | 5/15- 8/28+ | Tri-County | Hudson River League | , | |
| Dick Rudolph | rudolp001ric | 1906-10 | Fordham Univ. | College | , | ||
| Dick Rudolph | rudolp001ric | 1906 | +7/2-7/11+ | Rutland | Northern Independent League | , | |
| Dick Rudolph | rudolp001ric | 1906 | 8/24-9/8 | New Haven Blues | Connecticut State League | , | |
| John Rudolph | rudolp001joh | 1906 | 4/28-5/16 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| John Rudolph | rudolp001joh | 1906 | 5/17-7/12 | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| John Rudolph | rudolp001joh | 1906 | 7/24-9/15 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Earl Ruger | ruger-001ear | 1906 | 5/4-5/20 | Lincoln Ducklings | Western League | , | |
| Harry Ruh | ruh---001har | 1906 | 4/26-9/23 | Terre Haute Hottentots | Central League | , | |
| Gus Ruhland | ruhlan001gus | 1906 | 6/4-7/13 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | |
| Gus Ruhland | ruhlan001gus | 1906 | Martinsburg WV | Independent | , | ||
| Gus Ruhland | ruhlan001gus | 1906 | 8/25-9/23 | Montreal Royals | Eastern League | , | |
| J. Rundell | 1906 | +5/7+ | Walnut Springs | Independent | , | ||
| Lee Rundell | rundel001g-- | 1906 | +5/7+ | Walnut Springs | Independent | , | |
| Louis Runkel | runkle001lou | 1906 | 5/2-9/27 | Omaha Rourkes | Western League | , | |
| Harry Rush | 1906 | Spokane HS | High School | , | |||
| Harry Rush | 1906 | 5/1-8/19 | Spokane Indians | Northwestern League | , | ||
| Clyde Russell | russel001cly | 1906 | 4/11-4/27 | Nashville Volunteers | Southern Association | , | |
| Clyde Russell | russel001cly | 1906 | 5/8-9/3 | Columbia Gamecocks | South Atlantic League | , | |
| Clyde Russell | russel001cly | 1906 | 7/6 | Sumter Game Cocks | South Carolina League | , | |
| Cy Russell | russel002fra | 1906 | Oakland Commuters | California League | , | ||
| Cy Russell | russel002fra | 1906 | San Jose Prune Pickers | California League | , | ||
| John Russell | russel006jac | 1906 | 4/25 | Waco Navigators | Texas League | , | |
| John Russell | russel006jac | 1906 | 5/2-9/30 | Denver Grizzlies | Western League | , | |
| N. W. Russell | russel001n-- | 1906 | 19 g. | Meridian Ribboners | Cotton States League | , | |
| William Russell | 1906 | 4/26-5/4 | Norfolk Tars | Virginia League | , | ||
| Austin Rutherford | ruther001aus | 1906 | 6/4-9/21 | Utica Pent-Ups | New York State League | , | |
| Ryan | 1906 | 31 g. | Fall River Indians | New England League | , | ||
| Ryan | 1906 | 5/30-6/27 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Ryan | 1906 | 7/12-9/3 | Umpire | South Atlantic League | , | ||
| Jack Ryan | ryan--004joh | 1906 | 4/18-9/16 | Columbus Senators | American Association | , | |
| Jack Ryan | ryan--001jac | 1906 | 4/15-5/15 | Gulfport Crabs | Cotton States League | , | |
| Jack Ryan | ryan--001jac | 1906 | +5/27-9/23 | Mount Clemens Bathers | Southern Michigan League | , | |
| James Ryan | ryan--017jam | 1906 | Elmira NY | Independent | , | ||
| James Ryan | 1906 | 117 g. | Ottumwa Champs | Iowa League | , | ||
| James Ryan | 1906 | Keokuk Indians | Iowa League | , | |||
| Jimmy Ryan | ryan--003jam | 1906 | 4/26-7/27 | Evansville River Rats | Central League | , | |
| John Ryan | 1906 | 28 g. | Wausau Lumberjacks | Wisconsin State League | , | ||
| John Ryan | 1906 | Green Bay Colts | Wisconsin State League | , | |||
| John Ryan | 1906 | 11 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| Matt Ryan | 1906 | Alameda Grays | California League | , | |||
| Paul Ryan | ryan--003pau | 1906 | 4/19 | Jackson Senators | Cotton States League | , | |
| Paul Ryan | ryan--003pau | 1906 | 4/23-4/30 | Gulfport Crabs | Cotton States League | , | |
| Raymond Ryan | ryan--001ray | 1906 | Wheeling Stogies | Central League | , | ||
| Raymond Ryan | ryan--001ray | 1906 | +5/29+ | Lima OH | Independent | , | |
| Raymond Ryan | ryan--001ray | 1906 | 8/14-9/25 | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| T. Patrick Ryan | 1906 | +6/2-9/23 | Mount Clemens Bathers | Southern Michigan League | , | ||
| T. Patrick Ryan | 1906 | 9/17 | Battle Creek Crickets | Southern Michigan League | , | ||
| Edwin Sabrie | sabrie001edw | 1906 | 4/16-9/3 | Savannah Indians | South Atlantic League | , | |
| Edwin Sabrie | sabrie001edw | 1906 | 9/7-9/30 | Des Moines Champs | Western League | , | |
| Herbert Sackett | 1906 | 5/16-6/17 | Leavenworth Old Soldiers | Western Association | , | ||
| Herbert Sackett | 1906 | +6/29+ | Fort Scott Giants | Kansas State League | , | ||
| Herbert Sackett | 1906 | 7/12-7/14 | Oklahoma City Mets | Western Association | , | ||
| Joseph Safford | saffor001jos | 1906 | 112 g. | Oshkosh Indians | Wisconsin State League | , | |
| Leo Sage | sage--001leo | 1906 | FondduLac WI | Amateur | , | ||
| Leo Sage | sage--001leo | 1906 | 7/18-9/16 | Milwaukee Brewers | American Association | , | |
| James Sager | sager-001jam | 1906 | 4/26-9/25 | Evansville River Rats | Central League | , | |
| Harry Saillard | sailla001har | 1906 | 117 g. | Jackson Senators | Cotton States League | , | |
| Slim Sallee | sallee001har | 1906 | 4/14-9/14 | Birmingham Barons | Southern Association | , | |
| Ben Saller | 1906 | 5/24-5/29 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Sally | 1906 | +7/2+ | South McAlester Miners | South Central League | , | ||
| Walter Salm | salm--001wal | 1906 | 4/25-9/3 | Fort Worth Panthers | Texas League | , | |
| Gus Salve | salve-001aug | 1906 | 12 g. | Richmond Colts | Virginia League | , | |
| Guy Sample | sample001guy | 1906 | 119 g. | Meridian Ribboners | Cotton States League | , | |
| Lee Samuels | 1906 | 7/11-9/3 | Spokane Indians | Northwestern League | , | ||
| Sanchez | 1906 | 3 g. | Gulfport Crabs | Cotton States League | , | ||
| War Sanders | sander001war | 1906 | 37 g. | Omaha Rourkes | Western League | , | |
| Nelson Sandherr | sandhe001nel | 1906 | 5/24-9/15 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Michael Sandstrum | 1906 | 5/4+ | Chanute Browns | Kansas State League | , | ||
| Frank Sanger | 1906 | Univ. Michigan | College | , | |||
| Frank Sanger | 1906 | 6/23-8/25 | Ottawa | Northern Independent League | , | ||
| Frank Sanger | 1906 | +9/1-9/18+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| Charles Sapp | sapp--002cha | 1906 | 6/26-7/11 | Richmond Colts | Virginia League | , | |
| Edward Sapp | sapp--001e-- | 1906 | 6/19 | Williamsport Millionaires | Tri-State League | , | |
| Edward Sapp | sapp--001e-- | 1906 | 5/24-7/4 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Frank Sargent | 1906 | Kalamazoo White Sox | Southern Michigan League | , | |||
| Frank Sargent | 1906 | +5/19+ | Mount Clemens Bathers | Southern Michigan League | , | ||
| Frank Sargent | 1906 | Olean Refiners | Interstate League | , | |||
| Johnnie Sauerwine | sauerw000joh | 1906 | 5/4-5/17 | Webb City Goldbugs | Western Association | , | |
| Jimmie Savage | savage001jam | 1906 | no g. | Waterbury Authors | Connecticut State League | , | |
| John Savage | 1906 | 5/24-7/7 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| John Savage | 1906 | +9/29+ | Oil City-Jamestown Oseejays | Interstate League | , | ||
| Ralph Savidge | savidg001ral | 1906 | 4/20-9/3 | Charleston Sea Gulls | South Atlantic League | , | |
| Edward Sawyer | 1906 | 5/5 | Americus Pallbearers | Georgia State League | , | ||
| Kenneth Sawyer | 1906 | U. South Dakota | College | , | |||
| Kenneth Sawyer | 1906 | 6/25-7/15 | Sioux City Packers | Western League | , | ||
| Kenneth Sawyer | 1906 | 7/28-7/31 | Omaha Rourkes | Western League | , | ||
| Kenneth Sawyer | 1906 | 8/17 | Sioux City Packers | Western League | , | ||
| James Sayer | sayer-001jam | 1906 | Haverhill Hustlers | New England League | , | ||
| Scanlan | 1906 | 7/16-7/18 | Shawnee Blues | South Central League | , | ||
| Doc Scanlan | scanla001wil | 1906 | 38 g. | Brooklyn | National League | Brooklyn, NY | |
| Bud Scanlon | 1906 | 4/30-9/29 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Robert Scanlon | scanlo001rob | 1906 | Kingston Colonials | Hudson River League | , | ||
| Fred Scannell | 1906 | 8/18 | Manchester Textiles | New England League | , | ||
| Schaefer | 1906 | 5/23-5/24 | Dayton Veterans | Central League | , | ||
| Frank Schaefer | 1906 | 7/18-9/14 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| George Schaefer | schaef002geo | 1906 | 4/29-9/24 | Wheeling Stogies | Central League | , | |
| Germany Schaefer | schaef001her | 1906 | Detroit | American League | Detroit, MI | ||
| Schaffer | 1906 | 6/19-6/27 | Lancaster Red Roses | Tri-State League | , | ||
| Louis Schan | schan-001lou | 1906 | +6/3+ | Huntingburg IN | Independent | , | |
| Louis Schan | schan-001lou | 1906 | 6/22-9/25 | Evansville River Rats | Central League | , | |
| Henry Scharnweber | scharn001hen | 1906 | 5/3-9/16 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Fred Schatzke | schatz001fre | 1906 | 127 g. | Galveston Sand Crabs | South Texas League | , | |
| Fred Schatzke | schatz001fre | 1906 | San Antonio Bronchos | South Texas League | , | ||
| Schaub | 1906 | 6/7-7/5 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Bob Schaub | schaub001rob | 1906 | no g. | Chicago | National League | Chicago, IL | |
| Bob Schaub | schaub001rob | 1906 | +5/24-6/12+ | Terre Haute Hottentots | Central League | , | |
| Bob Schaub | schaub001rob | 1906 | Fort Wayne | Interstate Association | , | ||
| Frank Schaub | schaub001fra | 1906 | +5/16-6/? | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Frank Schaub | schaub001fra | 1906 | 76 g. | Ottumwa Champs | Iowa League | , | |
| Louis Schaub | schaub001lou | 1906 | +5/4-5/8+ | Wheeling Stogies | Central League | , | |
| Louis Schaub | schaub001lou | 1906 | +6/8-9/21+ | Ottumwa Champs | Iowa League | , | |
| Frank Scheibeck | scheib001fra | 1906 | 5/14-6/2 | Troy Trojans | New York State League | , | |
| Frank Scheibeck | scheib001fra | 1906 | -9/13 | 3 g. | Detroit | American League | Detroit, MI |
| Adolph Scheizel | 1906 | 7/9-7/16 | Manchester Textiles | New England League | , | ||
| Louis Schettler | schett001lou | 1906 | 4/29-9/26 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Lou Schiappacasse | schiap001lou | 1906 | 4/16-8/24 | Augusta Tourists | South Atlantic League | , | |
| Lou Schiappacasse | schiap001lou | 1906 | 9/11-9/12 | Tecumseh | Southern Michigan League | , | |
| Bert Schils | schils001alb | 1906 | 4/25-6/14 | Lancaster Red Roses | Tri-State League | , | |
| Bert Schils | schils001alb | 1906 | 6/16-7/20 | Altoona Mountaineers | Tri-State League | , | |
| Bert Schils | schils001alb | 1906 | 7/30-8/4 | Johnstown Johnnies | Tri-State League | , | |
| Arthur Schimpf | 1906 | 35 g. | Fresno Raisin Eaters | Pacific Coast League | , | ||
| Arthur Schimpf | 1906 | Portland Beavers | Pacific Coast League | , | |||
| George Schirm | 1906 | 4/16-8/10 | Columbia Gamecocks | South Atlantic League | , | ||
| Albert Schissel | schiss001alb | 1906 | 68 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | |
| Larry Schlafly | schlaf001har | 1906 | 123 g. | Washington | American League | Washington, DC | |
| Edward Schlatter | schlat001edw | 1906 | 4/28-6/10 | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Edward Schlatter | schlat001edw | 1906 | 6/14-6/30 | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Victor Schlitzer | schlit001vic | 1906 | 5/1 | Rochester Bronchos | Eastern League | , | |
| Victor Schlitzer | schlit001vic | 1906 | 5/11-7/11 | Utica Pent-Ups | New York State League | , | |
| Victor Schlitzer | schlit001vic | 1906 | 8/7-9/23 | Utica Pent-Ups | New York State League | , | |
| George Schmick | 1906 | 5/7 | Canton Chinamen | Central League | , | ||
| George Schmick | 1906 | +6/11+ | Fort Wayne | Interstate Association | , | ||
| George Schmick | 1906 | 7/17-9/25 | Canton Chinamen | Central League | , | ||
| Schmidt | schmid023--- | 1906 | Dayton Veterans | Central League | , | ||
| August Schmidt | schmid001aug | 1906 | 5/1-9/13 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Boss Schmidt | schmid001cha | 1906 | Detroit | American League | Detroit, MI | ||
| Henry Schmidt | schmid004hen | 1906 | Fresno Raisin Eaters | Pacific Coast League | , | ||
| Henry Schmidt | schmid004hen | 1906 | Los Angeles Angels | Pacific Coast League | , | ||
| Henry Schmidt | schmid004hen | 1906 | 6/28-7/24 | Nashville Volunteers | Southern Association | , | |
| Henry Schmidt | schmid004hen | 1906 | 8/4-9/3 | Mobile Sea Gulls | Cotton States League | , | |
| Henry Schmidt | schmid004hen | 1906 | 9/15 | Nashville Volunteers | Southern Association | , | |
| Theodore Schmidt | 1906 | 4/28-5/20 | Butte Miners | Northwestern League | , | ||
| August Schnack | 1906 | Hudson Marines | Hudson River League | , | |||
| Frank Schneiberg | schnei001fra | 1906 | 53 g. | La Crosse Pinks | Wisconsin State League | , | |
| Emmett Schofield | schofi001emm | 1906 | St. Mary’s College | College | , | ||
| Emmett Schofield | schofi001emm | 1906 | 6 g. | San Francisco Seals | Pacific Coast League | , | |
| Walter Schooler | school001wal | 1906 | +6/4+ | Granger IA | Independent | , | |
| Walter Schooler | school001wal | 1906 | +6/17+ | Boone/Clinton Miners | Iowa League | , | |
| Walter Schooler | school001wal | 1906 | 3rd OR Inf | WWI | , | ||
| Thomas Schoonhoven | schoon001tho | 1906 | 119 g. | Freeport Pretzels | Wisconsin State League | , | |
| Grant Schopp | schopp001gra | 1906 | 60 g. | Ottumwa Champs | Iowa League | , | |
| Schott | 1906 | Anderson | Interstate Association | , | |||
| Joe Schrall | schral001jos | 1906 | 5/19-5/27 | Scranton Miners | New York State League | , | |
| Joe Schrall | schral001jos | 1906 | 6/5-7/27 | Wheeling Stogies | Central League | , | |
| John Schrant | schran001joh | 1906 | 5/4-5/14 | Webb City Goldbugs | Western Association | , | |
| John Schrant | schran001joh | 1906 | 5/20-5/29 | Denver Grizzlies | Western League | , | |
| John Schrant | schran001joh | 1906 | 6/4-7/10 | Pueblo Indians | Western League | , | |
| Ossee Schrecongost | schrec001oss | 1906 | Philadelphia | American League | Philadelphia, PA | ||
| David Schreiber | 1906 | 32 g. | Decatur Commodores | Illinois-Indiana-Iowa League | , | ||
| Frank Schreiner | schrin001f-- | 1906 | 120 g. | Oshkosh Indians | Wisconsin State League | , | |
| Pop Schriver | schriv001wil | 1906 | 4/25-9/14 | Harrisburg Senators | Tri-State League | , | |
| Mike Schroeder | schroe000mik | 1906 | Roanoke Tigers | Virginia League | , | ||
| Tony Schubert | schube000ton | 1906 | no g. | Lake Linden Sandy Cities | Northern-Copper Country League | , | |
| Harry Schuler | 1906 | 5/24-6/28 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Frank Schulte | schult001fra | 1906 | Chicago | National League | Chicago, IL | ||
| Jack Schulte | schult003joh | 1906 | 8/19 | Boston | National League | Boston, MA | |
| Schultz | 1906 | +7/28+ | Tri County | Hudson River League | , | ||
| Schultz | 1906 | 7 g. | Wausau Lumberjacks | Wisconsin State League | , | ||
| George Schultz | schult001geo | 1906 | 5/3-5/21 | Rochester Bronchos | Eastern League | , | |
| George Schultz | schult001geo | 1906 | 6/11 | Newark Sailors | Eastern League | , | |
| Edward Schulze | 1906 | Olean Refiners | Interstate League | , | |||
| Edward Schulze | 1906 | 101 ab | Glens Falls-Saratoga Springs | Hudson River League | , | ||
| Emil Schulzowski | schulz001e-- | 1906 | 38 g. | Green Bay Colts | Wisconsin State League | , | |
| Charles Schuman | 1906 | +6/7-6/22+ | Bridgeport Orators | Connecticut State League | , | ||
| Hack Schumann | schuma002car | 1906 | +7/27-9/1+ | 48 g. | Portsmouth Truckers | Virginia League | , |
| Hack Schumann | schuma002car | 1906 | 9/18-10/3 | Philadelphia | American League | Philadelphia, PA | |
| Henry Schurch | schurc001hen | 1906 | 37 g. | Lake Linden Sandy Cities | Northern-Copper Country League | , | |
| Jack Schuster | schust001--- | 1906 | Umpire | Interstate League | , | ||
| Jack Schuster | schust001--- | 1906 | Umpire | Illinois-Indiana-Iowa League | , | ||
| Jack Schuster | schust001--- | 1906 | 7/13-9/15 | Umpire | Southern Association | , | |
| Bill Schwartz | schwar003wil | 1906 | 4/28-9/25 | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| Charles Schwartz | schwar001cha | 1906 | 4/11-7/25 | Montgomery Senators | Southern Association | , | |
| Charles Schwartz | schwar001cha | 1906 | 8/4-9/15 | Altoona Mountaineers | Tri-State League | , | |
| Al Schweitzer | schwei001alb | 1906 | 5/10-5/26 | Syracuse Stars | New York State League | , | |
| Al Schweitzer | schwei001alb | 1906 | 98 g. | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Rudy Schwenck | schwen001rud | 1906 | 9 g. | Mobile Sea Gulls | Cotton States League | , | |
| Rudy Schwenck | schwen001rud | 1906 | 6/3-9/29 | Lake Charles Creoles | South Texas League | , | |
| John Schymansky | 1906 | 8/29-9/16 | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| Arlo Scoggins | scoggi001arl | 1906 | Univ. Oklahoma | College | , | ||
| Arlo Scoggins | scoggi001arl | 1906 | 5/4-9/23 | Oklahoma City Mets | Western Association | , | |
| Edward Scott | scott-001ed- | 1906 | 40 g. | Freeport Pretzels | Wisconsin State League | , | |
| George Scott | scott-004geo | 1906 | 4/28-9/15 | Johnstown Johnnies | Tri-State League | , | |
| Joseph Scott | scott-004jos | 1906 | 5/8-9/15 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Orrie Scott | 1906 | 4/30-9/18 | Wheeling Stogies | Central League | , | ||
| Trammel Scott | 1906 | 5/3-5/19+ | Cordele | Georgia State League | , | ||
| Trammel Scott | 1906 | 8/14-9/3 | Jacksonville Jays | South Atlantic League | , | ||
| William Scudder | scudde001wil | 1906 | Hornell/Patton Pigmies | Interstate League | , | ||
| William Scudder | scudde001wil | 1906 | Kane Mountaineers | Interstate League | , | ||
| John Scully | 1906 | +9/3+ | Elmira NY | Independent | , | ||
| W. P. Scully | 1906 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |||
| James Seabough | seabou001jam | 1906 | 5/4-9/23 | Springfield Midgets | Western Association | , | |
| Thomas Searles | searle001tho | 1906 | 59 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| Sears | 1906 | 6/29-6/30 | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Harry Sears | sears-001har | 1906 | Stockton Millers | California League | , | ||
| Harry Sears | sears-001har | 1906 | 73 g. | San Francisco Seals | Pacific Coast League | , | |
| Harry Seay | seay--001h-- | 1906 | 5/8-5/15 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Samuel Seay | 1906 | West Virginia U. | College | , | |||
| Samuel Seay | 1906 | Lycoming PA | Independent | , | |||
| Jimmy Sebring | sebrin001jam | 1906 | 4/25-9/15 | Williamsport Millionaires | Tri-State League | , | |
| Charles Sechrist | sechri001cha | 1906 | Norfolk Tars | Virginia League | , | ||
| William Sedgwick | sedgwi001wil | 1906 | Boone/Clinton Miners | Iowa League | , | ||
| Seeley | 1906 | +5/4-5/19+ | Guthrie Senators | South Central League | , | ||
| Seeley | 1906 | +7/4-7/20 | Guthrie Senators | South Central League | , | ||
| Paul Seiber | 1906 | Gettysburg Col. | College | , | |||
| Paul Seiber | 1906 | 6/21-9/8 | Richmond Colts | Virginia League | , | ||
| George Seigle | seigle001geo | 1906 | 5/6-7/11 | Oklahoma City Mets | Western Association | , | |
| George Seigle | seigle001geo | 1906 | 7/12-7/18 | Guthrie Senators | South Central League | , | |
| George Seigle | seigle001geo | 1906 | 7/21-7/27 | Oklahoma City Mets | Western Association | , | |
| George Seigle | seigle001geo | 1906 | 7/28-8/15 | Wichita Jobbers | Western Association | , | |
| George Seigle | seigle001geo | 1906 | 8/19-8/21 | Topeka White Sox | Western Association | , | |
| George Seigle | seigle001geo | 1906 | 8/28-9/23 | Oklahoma City Mets | Western Association | , | |
| Edward Seikmeyer | 1906 | +5/4-7/20 | Guthrie Senators | South Central League | , | ||
| Charles Seitz | 1906 | 4/30-9/8 | Norfolk Tars | Virginia League | , | ||
| Edward Seitz | seitz-001edw | 1906 | Boone/Clinton Miners | Iowa League | , | ||
| Joseph Seitz | seitz-000joe | 1906 | Rochester Bronchos | Eastern League | , | ||
| Kip Selbach | selbac001alb | 1906 | -6/29 | 60 g. | Boston | American League | Boston, MA |
| Kip Selbach | selbac001alb | 1906 | Providence Grays | Eastern League | , | ||
| Selby | 1906 | 6/19 | Tulsa Oilers | South Central League | , | ||
| Orville Selby | selby-001orv | 1906 | 70 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | |
| Frank Selee | selee-001fra | 1906 | 5/2-9/30 | Pueblo Indians | Western League | , | |
| Oliver Sellers | seller001oli | 1906 | 4/28-9/28 | Sharon Steels | Ohio-Pennsylvania League | , | |
| Harry Selvage | 1906 | 6/7-9/14 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Daniel Senno | senno-001dan | 1906 | Oil City-Jamestown Oseejays | Interstate League | , | ||
| Daniel Senno | senno-001dan | 1906 | Oil City-Jamestown Oseejays | Interstate League | , | ||
| John Sens | sens--001joh | 1906 | 109 g. | Baton Rouge Cajuns | Cotton States League | , | |
| John Sens | sens--001joh | 1906 | Jackson Senators | Cotton States League | , | ||
| John Sens | sens--001joh | 1906 | +10/19+ | NOrl-Parker-Blake | Semi-professional | , | |
| Paul Sentell | sentel001leo | 1906 | 4/12- | 63 g. | Philadelphia | National League | Philadelphia, PA |
| Bert Senter | senter001--- | 1906 | -10/3 | Clinton KS | Independent | , | |
| Albert Servatius | servat001alb | 1906 | +5/29+ | Kane Mountaineers | Interstate League | , | |
| Albert Servatius | servat001alb | 1906 | +8/25+ | Oil City-Jamestown Oseejays | Interstate League | , | |
| Perry Sessions | sessio001per | 1906 | 4/18-5/14 | Minneapolis Millers | American Association | , | |
| Perry Sessions | sessio001per | 1906 | 5/19-5/23 | Winnipeg Maroons | Northern-Copper Country League | , | |
| Perry Sessions | sessio001per | 1906 | 9/13-9/30 | Des Moines Champs | Western League | , | |
| William Setley | setley001wil | 1906 | 4/28-5/26 | Umpire | Northwestern League | , | |
| William Setley | setley001wil | 1906 | Edmonton Alberta | Independent | , | ||
| William Setley | setley001wil | 1906 | Calgary | Independent | , | ||
| Harry Sewald | sewald001har | 1906 | 5/24-7/7 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Harry Sewald | sewald001har | 1906 | no g. | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Harry Sewald | sewald001har | 1906 | +7/12-9/12+ | Wheeling Stogies | Central League | , | |
| Seward | 1906 | 7/12-88/15 | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | ||
| Harry Shackelford | 1906 | Charleston YMCA | Independent | , | |||
| Harry Shackelford | 1906 | 6/21-6/27 | Manning | South Carolina League | , | ||
| Charles Shaeffer | 1906 | 4/16-4/23 | Charleston Sea Gulls | South Atlantic League | , | ||
| Ed. Shafer | schaef001e-- | 1906 | 102 g. | Burlington Pathfinders | Iowa League | , | |
| Charlie Shaffer | shaffe001cha | 1906 | 4/26-9/8 | Richmond Colts | Virginia League | , | |
| Charles Shafft | shafft001cha | 1906 | 5/13-7/11 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Shanabrook | shanna001war | 1906 | Massillon | , | |||
| Bert Shaner | shaner001ber | 1906 | 5/4-7/4 | Webb City Goldbugs | Western Association | , | |
| Bert Shaner | shaner001ber | 1906 | 9/1-9/20 | Webb City Goldbugs | Western Association | , | |
| Frank Shannon | shanno002fra | 1906 | 4/28-9/8 | Lowell Tigers | New England League | , | |
| Hugh Shannon | 1906 | 7/22 | New Bedford Whalers | New England League | , | ||
| Owen Shannon | shanno001owe | 1906 | 4/18-9/17 | Minneapolis Millers | American Association | , | |
| Spike Shannon | shanno003wil | 1906 | 80 g. | St. Louis | National League | St. Louis, MO | |
| Spike Shannon | shanno003wil | 1906 | 76 g. | New York | National League | New York, NY | |
| Thomas Sharp | 1906 | 4/26-5/23 | Richmond Colts | Virginia League | , | ||
| Thomas Sharp | 1906 | Portsmouth Truckers | Virginia League | , | |||
| Thomas Sharp | 1906 | Roanoke Tigers | Virginia League | , | |||
| Thomas Sharp | 1906 | +9/17+ | Rich-Times | Independent | , | ||
| Bud Sharpe | sharpe001bay | 1906 | 5/10-9/22 | Scranton Miners | New York State League | , | |
| Jack Sharrott | sharro001jac | 1906 | 5/10-8/16 | Wilkes-Barre Barons | New York State League | , | |
| Shag Shaughnessy | shaugh001fra | 1906 | +7/2-8/ | Ottawa | Northern Independent League | , | |
| Shag Shaughnessy | shaugh001fra | 1906 | 8/25-9/6+ | South Bend Greens | Central League | , | |
| Clinton Shaver | shaver001g-- | 1906 | 4/26-5/25 | Lynchburg Shoemakers | Virginia League | , | |
| Clinton Shaver | shaver001g-- | 1906 | 5/29-6/8 | Danville Red Sox | Virginia League | , | |
| Clinton Shaver | shaver001g-- | 1906 | 6/19-7/16 | Georgetown | South Carolina League | , | |
| Shaw | 1906 | 8 g. | Gulfport Crabs | Cotton States League | , | ||
| Shaw | 1906 | Empire | Empire State League | , | |||
| Al Shaw | shaw--001alf | 1906 | 4/18-9/10 | Louisville Colonels | American Association | , | |
| Al Shaw | shaw--003alb | 1906 | +5/27-8/14+ | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Carl Shaw | 1906 | 8/4-8/11 | Butte Miners | Northwestern League | , | ||
| Carl Shaw | 1906 | 8/13-8/14 | Grays Harbor Lumbermen | Northwestern League | , | ||
| Frank Shaw | shaw--001fra | 1906 | 46 g. | Oskaloosa Quakers | Iowa League | , | |
| Hunky Shaw | shaw--001roy | 1906 | +4/15+ | Yakima | Yakima Valley | , | |
| Hunky Shaw | shaw--001roy | 1906 | 5/9-9/3 | Tacoma Tigers | Northwestern League | , | |
| J. Shaw | 1906 | 4/30-5/18 | Terre Haute Hottentots | Central League | , | ||
| J. Shaw | 1906 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |||
| Jesse Shaw | 1906 | 6/25-7/24 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| John Shaw | shaw--007joh | 1906 | 5/10-7/20 | Wilkes-Barre Barons | New York State League | , | |
| John Shaw | shaw--007joh | 1906 | 7/23-9/23 | Binghamton Bingoes | New York State League | , | |
| Robert Shaw | 1906 | 42 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Robert Shaw | 1906 | +7/23-9/12+ | Terre Haute Hottentots | Central League | , | ||
| Danny Shay | shay--001dan | 1906 | Stockton Millers | California League | , | ||
| Shea | 1906 | 8 g. | San Francisco Seals | Pacific Coast League | , | ||
| Danny Shea | shea--001dan | 1906 | 4/28-9/3 | Tacoma Tigers | Northwestern League | , | |
| Dennie Shea | shea--001den | 1906 | 4/18-9/3 | Jacksonville Jays | South Atlantic League | , | |
| John Shea | shea--002joh | 1906 | Fremont NB | Independent | , | ||
| John Shea | 1906 | 4/30 | New Haven Blues | Connecticut State League | , | ||
| Nap Shea | shea--001joh | 1906 | 4/26-9/21 | Newark Sailors | Eastern League | , | |
| Shea/Shay | 1906 | +7/4+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Dave Shean | shean-001dav | 1906 | +7/11-8/9+ | Rutland | Northern Independent League | , | |
| Dave Shean | shean-001dav | 1906 | Rockville CT | Independent | , | ||
| Dave Shean | shean-001dav | 1906 | 9/10- | 22 g. | Philadelphia | American League | Philadelphia, PA |
| Dan Sheehan | sheeha001dan | 1906 | 4/25-5/22 | Johnstown Johnnies | Tri-State League | , | |
| Dan Sheehan | sheeha001dan | 1906 | 6/5-10/1 | Sioux City Packers | Western League | , | |
| Nick Sheehan | 1906 | Umpire | South Texas League | , | |||
| Tommy Sheehan | sheeha003tho | 1906 | 95 g. | Pittsburgh | National League | Pittsburgh, PA | |
| Tim Sheenan | 1906 | 6/26-6/28 | Manchester Textiles | New England League | , | ||
| Roy Sheets | sheets001roy | 1906 | 4/27- | Worcester Busters | New England League | , | |
| Roy Sheets | sheets001roy | 1906 | -6/18 | Lowell Tigers | New England League | , | |
| Roy Sheets | sheets001roy | 1906 | +7/10+ | Montpelier-Barre | Northern Independent | , | |
| William Sheffield | sheffi001--- | 1906 | 4/25-6/21 | Temple Boll Weevils | Texas League | , | |
| George Shelafo | shelaf001--- | 1906 | , | ||||
| Stanley Sheldon | 1906 | 125 g. | Waterloo Microbes | Iowa League | , | ||
| Ben Shelton | shelto001ben | 1906 | 108 g. | Cleburne Railroaders | Texas League | , | |
| Robert Shelton | shelto004rob | 1906 | Texarkana Shine-Oners | Arkansas-Texas League | , | ||
| Shepard | 1906 | Alameda Grays | California League | , | |||
| Sheppe | 1906 | 4/30-5/2 | New Bedford Whalers | New England League | , | ||
| Jack Sheridan | sherid001jac | 1906 | MLB Umpire | American League | , | ||
| Joseph Sheridan | 1906 | Vermont League | , | ||||
| Sherman | 1906 | +8/9 | Terre Haute Hottentots | Central League | , | ||
| William Sherman | sherma002w-- | 1906 | Erie Sailors | Interstate League | , | ||
| George Sherwood | sherwo002geo | 1906 | 4/27-9/8 | New Haven Blues | Connecticut State League | , | |
| Simon Shetter | 1906 | preseason | Richmond Colts | Virginia League | , | ||
| Simon Shetter | 1906 | Phil.-S-Pro | Independent | , | |||
| Simon Shetter | 1906 | Umpire | South Atlantic League | , | |||
| Shields | 1906 | 7/15-7/16 | Missoula | Montana State League | , | ||
| Shields | 1906 | 9/8 | Scranton Miners | New York State League | , | ||
| Shields | 1906 | 7/5-7/17 | Lake Linden Sandy Cities | Northern-Copper Country League | , | ||
| Charlie Shields | shield002cha | 1906 | 4/27-9/15 | Altoona Mountaineers | Tri-State League | , | |
| Chester Shields | 1906 | Oil City-Jamestown Oseejays | Interstate League | , | |||
| Chester Shields | 1906 | Kane Mountaineers | Interstate League | , | |||
| E. E. Shields | 1906 | 5/3-5/4 | Chanute Browns | Kansas State League | , | ||
| Jimmie? Shields | 1906 | +5/16+ | Clinton IL | Independent | , | ||
| Anton Shimonek | shimon001ant | 1906 | 5/4-9/23 | Joplin Miners | Western Association | , | |
| Herman Shincel | shince001her | 1906 | 4/26-9/8 | Holyoke Paperweights | Connecticut State League | , | |
| Jack Shiner | 1906 | Winchester VA | Independent | , | |||
| Jack Shiner | 1906 | 5/24-5/31 | Roanoke Tigers | Virginia League | , | ||
| Jack Shiner | 1906 | Winchester VA | Independent | , | |||
| James Shinn | 1906 | San Jose Prune Pickers | California League | , | |||
| James Shinn | 1906 | Sacramento Cordovas | California League | , | |||
| Bill Shipke | shipke001wil | 1906 | 4/23- | 2 g. | Cleveland | American League | Cleveland, OH |
| Bill Shipke | shipke001wil | 1906 | 5/13-9/30 | Des Moines Champs | Western League | , | |
| Frank Shipp | shipp-000ski | 1906 | Mooney College | College | , | ||
| Frank Shipp | shipp-000ski | 1906 | Sewanee Univ. | College | , | ||
| G. Herman Shoffner | shoffn001g-- | 1906 | 5/1-5/29 | Muskogee Indians | South Central League | , | |
| G. Herman Shoffner | shoffn001g-- | 1906 | 6/1-8/7 | Fort Smith Razorbacks | South Central League | , | |
| Harry Short | 1906 | 115 g. | Austin Senators | South Texas League | , | ||
| Ed Shortell | shorte001edw | 1906 | 5/10-9/22 | Scranton Miners | New York State League | , | |
| Lawrence Shotwell | 1906 | +5/13+ | Butler PA | Independent | , | ||
| Lawrence Shotwell | 1906 | +6/14+ | Beaver Valley PA | Independent | , | ||
| Lawrence Shotwell | 1906 | 7/23-7/26 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | ||
| Lawrence Shotwell | 1906 | 8/8-9/15 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Caleb Shriver | shrive001cal | 1906 | 4/27-9/24 | Wheeling Stogies | Central League | , | |
| H. P. Shuford | 1906 | Georgetown | South Carolina League | , | |||
| J. H. Shuford | 1906 | No. Carolina State | College | , | |||
| Frank Shugart | shugar001fra | 1906 | 5/2-5/4 | Lincoln Ducklings | Western League | , | |
| Frank Shugart | shugar001fra | 1906 | 5/16-8/2 | Pueblo Indians | Western League | , | |
| Toots Shultz | shultz001wal | 1906 | +5/21+ | Mercersburg Acad | High School | , | |
| Toots Shultz | shultz001wal | 1906 | +7/21+ | Pitt.-Collegians | Independent | , | |
| Paul Sieber | 1906 | +4/20+ | Gettysburg Col. | College | , | ||
| Paul Sieber | 1906 | 74 g. | Richmond Colts | Virginia League | , | ||
| Johnny Siegle | siegle001joh | 1906 | - 10/7 | 21 g. | Cincinnati | National League | Cincinnati, OH |
| Ed Siever | siever001edw | 1906 | Detroit | American League | Detroit, MI | ||
| Marvin Sigler | sigler000mar | 1906 | , | ||||
| J. Silva | silva-001j-- | 1906 | Oakland Commuters | California League | , | ||
| Joe Simmonds | 1906 | Dayton Veterans | Central League | , | |||
| Hack Simmons | simmon001geo | 1906 | 8/20-9/23 | Montreal Royals | Eastern League | , | |
| Simon | simon-006--- | 1906 | -7/19 | Plattsburgh | Northern Independent League | , | |
| Simon | simon-006--- | 1906 | +7/25-8/2+ | Rutland | Northern Independent League | , | |
| Mike Simon | simon-003mic | 1906 | 5/3- | 85 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , |
| Jack Simons | simons001joh | 1906 | 4/28-7/8 | Spokane Indians | Northwestern League | , | |
| Jack Simons | simons001joh | 1906 | 12 g. | San Francisco Seals | Pacific Coast League | , | |
| Jack Simons | simons001joh | 1906 | Fresno Raisin Eaters | Pacific Coast League | , | ||
| Ben Simonton | simont001ben | 1906 | 5/1 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Ormond Simpkins | 1906 | 71 g. | San Antonio Bronchos | South Texas League | , | ||
| Fred Simpson | 1906 | 6/30-9/15 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Guy Simpson | 1906 | 5/21-6/4 | Temple Boll Weevils | Texas League | , | ||
| Guy Simpson | 1906 | 6/20 | Waco Navigators | Texas League | , | ||
| Jesse Simpson | 1906 | no g. | Houston Buffaloes | South Texas League | , | ||
| Jesse Simpson | 1906 | +5/4-6/6+ | Shawnee Blues | South Central League | , | ||
| Jesse Simpson | 1906 | 6/11-6/12 | Webb City Goldbugs | Western Association | , | ||
| Jesse Simpson | 1906 | 6/18-6/19 | Oklahoma City Mets | Western Association | , | ||
| Jesse Simpson | 1906 | 6/23-8/7 | South McAlester Miners | South Central League | , | ||
| Oscar Simpson | 1906 | 6/18-8/11 | Sumter Game Cocks | South Carolina League | , | ||
| Oscar Simpson | 1906 | 6/18-8/11 | Sumter Game Cocks | South Carolina League | , | ||
| Billy Sims | 1906 | Umpire | Interstate League | , | |||
| Bert Sincock | sincoc001her | 1906-08 | U. Michigan | College | , | ||
| Hosea Siner | siner-001hos | 1906 | +6/15-6/18+ | Albany | Georgia State League | , | |
| Hosea Siner | siner-001hos | 1906 | 7/16-7/18 | Sumter Game Cocks | South Carolina League | , | |
| Hosea Siner | siner-001hos | 1906 | Paris IL | Independent | , | ||
| Lawrence Sinex | sinex-001law | 1906 | Cloudersport | Interstate League | , | ||
| Walter Singleton | single001--- | 1906 | Emporia State U. | College | , | ||
| Walter Singleton | single001--- | 1906 | 6/11-7/17+ | Chanute Browns | Kansas State League | , | |
| Walter Singleton | single001--- | 1906 | NB - Indep | Independent | , | ||
| Charles Sisler | sisler001cha | 1906 | 5/3-5/27 | Pueblo Indians | Western League | , | |
| Carl Sitton | sitton001car | 1906 | Ottawa | Northern Independent League | , | ||
| Carl Sitton | sitton001car | 1906 | 7/20-7/23 | Jacksonville Jays | South Atlantic League | , | |
| Carl Sitton | sitton001car | 1906 | 7/28-8/18 | Sumter Game Cocks | South Carolina League | , | |
| Henry Sitton | 1906 | 6/11-8/18 | Sumter Game Cocks | South Carolina League | , | ||
| Walter Sizemore | sizemo001wal | 1906 | 8/14-8/17 | Oklahoma City Mets | Western Association | , | |
| Tom Skelley | skelle001--- | 1906 | Holy Cross | College | , | ||
| Tom Skelley | skelle001--- | 1906 | +7/2+ | Plattsburgh | Northern Independent League | , | |
| Tom Skelley | skelle001--- | 1906 | 7/23 | Springfield Ponies | Connecticut State League | , | |
| Tom Skelley | skelle001--- | 1906 | 7/28-9/4 | Hartford Senators | Connecticut State League | , | |
| Clarence Skillin | 1906 | Chic.- | Independent | , | |||
| Alfred Skillman | 1906 | +7/3-8/23+ | Bridgeton NJ | Independent | , | ||
| John Skopec | skopec001joh | 1906 | 19 g. | Freeport Pretzels | Wisconsin State League | , | |
| John Skopec | skopec001joh | 1906 | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| George Slack | 1906 | 6/8-6/15 | New London Whalers | Connecticut State League | , | ||
| John Slack | 1906 | Portsmouth Truckers | Virginia League | , | |||
| Walt Slagle | slagle001wal | 1906 | 4/21-9/6 | St. Paul Saints | American Association | , | |
| Cyril Slapnicka | 1906 | 16 g. | Marshalltown Brownies | Iowa League | , | ||
| Asa Slater | slater001asa | 1906 | 8 g. | Galveston Sand Crabs | South Texas League | , | |
| Jack Slattery | slatte001joh | 1906 | 3 g. | St. Louis | National League | St. Louis, MO | |
| Jack Slattery | slatte001joh | 1906 | 5/27-7/14 | Kansas City Blues | American Association | , | |
| Jack Slattery | slatte001joh | 1906 | 7/20-9/19 | Toronto Maple Leafs | Eastern League | , | |
| Barney Slaughter | slaugh001byr | 1906 | Washington | Pennsylvania-Ohio-Maryland League | , | ||
| Slavin | 1906 | Waterbury Authors | Connecticut State League | , | |||
| Michael Slavin | 1906 | 1 g. | Portland Beavers | Pacific Coast League | , | ||
| Walter Slear | slear-001wal | 1906 | 5/19-6/5+ | Calumet Aristocrats | Northern-Copper Country League | , | |
| Walter Slear | slear-001wal | 1906 | +7/2-9/7+ | Tecumseh | Southern Michigan League | , | |
| William Sline | sline-001wil | 1906 | 4/30-9/8 | Worcester Busters | New England League | , | |
| Smalley | 1906 | Oakland Commuters | California League | , | |||
| Smedley | 1906 | 7/12+ | Tulsa Oilers | South Central League | , | ||
| Fred Smeltz | 1906 | Savannah Indians | South Atlantic League | , | |||
| Smiley | 1906 | 9/11 | Little Rock Travelers | Southern Association | , | ||
| Bill Smink | smink-001wil | 1906 | 6/8-7/29 | Umpire | New York State League | , | |
| Smith | 1906 | 5/22 | Springfield Babes | Central League | , | ||
| Smith | 1906 | 8/14 | Waco Navigators | Texas League | , | ||
| Smith | 1906 | Wausau Lumberjacks | Wisconsin State League | , | |||
| Smith | 1906 | 5/2-7/7 | Tulsa Oilers | South Central League | , | ||
| Smith | 1906 | 5/27-6/19 | Topeka White Sox | Western Association | , | ||
| Smith | 1906 | 6/22-7/1 | Umpire | Western Association | , | ||
| A. Smith | 1906 | Americus Pallbearers | Georgia State League | , | |||
| Aleck Smith | smith-001ale | 1906 | 16 g. | New York | National League | New York, NY | |
| Anthony Smith | smith-001ant | 1906 | 126 g. | Galveston Sand Crabs | South Texas League | , | |
| Anthony Smith | smith-001ant | 1906 | 9/7-9/15 | Shreveport Pirates | Southern Association | , | |
| Anthony Smith | 1906 | 5/29-9/8 | Roanoke Tigers | Virginia League | , | ||
| Archie Smith | 1906 | 5/30-6/20 | Norfolk Tars | Virginia League | , | ||
| Arthur Smith | smith-008art | 1906 | 4/28-9/5 | Haverhill Hustlers | New England League | , | |
| Arthur Smith | smith-008art | 1906 | Lynn Shoemakers | New England League | , | ||
| Arthur Smith | smith-007art | 1906 | 5/10-5/23 | Albany Senators | New York State League | , | |
| Arthur Smith | smith-007art | 1906 | Bradford Drillers | Interstate League | , | ||
| Billy Smith | smith-011wil | 1906 | 4/21-7/14 | Atlanta Crackers | Southern Association | , | |
| Billy Smith | smith-057wil | 1906 | 4/28-9/29 | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Boyd Smith | 1906 | Albany | Georgia State League | , | |||
| Bull Smith | smith-001lew | 1906 | 4/16 | Chicago | National League | Chicago, IL | |
| Bull Smith | smith-001lew | 1906 | 6/27 | St. Paul Saints | American Association | , | |
| C. Smith | 1906 | 6/11-6/19 | Camden | South Carolina League | , | ||
| Carl Smith | 1906 | 9/8-9/17 | Wheeling Stogies | Central League | , | ||
| Carlos Smith | smith-006car | 1906 | 4/11-9/15 | Birmingham Barons | Southern Association | , | |
| Charles Smith | smith-006cha | 1906 | 100 g. | Fort Dodge Gypsumites | Iowa League | , | |
| Charlie Smith | smith-011cha | 1906 | Washington | American League | Washington, DC | ||
| Cliff Smith | 1906 | +6/13+ | Americus Pallbearers | Georgia State League | , | ||
| Cliff Smith | 1906 | 6/11 | Columbus/Brunswick River Snipes | Georgia State League | , | ||
| Dick Smith | smith-018ric | 1906 | 101 g. | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Ed Smith | smith-001rhe | 1906 | 19 g. | St. Louis | American League | St. Louis, MO | |
| Ed Smith | smith-001ed- | 1906 | 17 g. | Houghton Giants | Northern-Copper Country League | , | |
| Elmer Smith | smith-004elm | 1906 | 5/11-9/18 | Binghamton Bingoes | New York State League | , | |
| Elmer Smith | smith-005elm | 1906 | 7/3-9/9 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Elmer Smith | 1906 | Mansfield Giants | Ohio-Pennsylvania League | , | |||
| Frank Smith | smith-004fra | 1906 | 5/19-9/3 | Houghton Giants | Northern-Copper Country League | , | |
| Fred Smith | smith-010fre | 1906 | 4/26-9/22 | Terre Haute Hottentots | Central League | , | |
| George Smith | smith-012geo | 1906 | 4/26-9/22 | Buffalo Bisons | Eastern League | , | |
| Harry Smith | smith-018har | 1906 | 1 g. | Pittsburgh | National League | Pittsburgh, PA | |
| Harry Smith | smith-018har | 1906 | 5/1- | Massillon OH | Independent | , | |
| Harry Smith | smith-018har | 1906 | 6/14-6/15 | Sharon Steels | Ohio-Pennsylvania League | , | |
| Harry Smith | 1906 | Kent OH | Independent | , | |||
| Herbert Smith | 1906 | 11 g. | Mobile Sea Gulls | Cotton States League | , | ||
| Herbert Smith | 1906 | 5/22-6/7 | Macon Brigands | South Atlantic League | , | ||
| Herbert Smith | 1906 | 6/11-7/4+ | Jacksonville Jays | South Atlantic League | , | ||
| Herbert Smith | 1906 | 7/11-9/3 | Columbia Gamecocks | South Atlantic League | , | ||
| James Smith | smith-032jam | 1906 | 162 g. | Oakland Oaks | Pacific Coast League | , | |
| Joe Smith | smith-007jos | 1906 | 4/25-9/14 | York Penn Parks | Tri-State League | , | |
| Joe Smith | 1906 | Decatur Commodores | Illinois-Indiana-Iowa League | , | |||
| John Smith | smith-024joh | 1906 | 5/24-9/15 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| John Smith | 1906 | 7/13-7/26 | Sumter Game Cocks | South Carolina League | , | ||
| John Smith | 1906 | Wake Forset | College | , | |||
| John Smith | 1906 | 7/13-7/26 | Sumter Game Cocks | South Carolina League | , | ||
| Jud Smith | smith-001jud | 1906 | Portland Beavers | Pacific Coast League | , | ||
| L. J. Smith | 1906 | Bartlesville Indians | Kansas State League | , | |||
| Lee Smith | smith-002lee | 1906 | Guilford College | College | , | ||
| Paul Smith | smith-016pau | 1906 | 5/24-6/16 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| Paul Smith | smith-016pau | 1906 | 7/19-9/10 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| Phenomenal Smith | smith-013joh | 1906 | 4/27-5/10 | Lawrence Colts | New England League | , | |
| Phenomenal Smith | smith-013joh | 1906 | 8/18 | Manchester Textiles | New England League | , | |
| Philip Smith | 1906 | Hobo.-Plainfield | Independent | , | |||
| Samuel Smith | smith-007sam | 1906 | 5/26-9/14 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Stub Smith | smith-001stu | 1906 | 5/2-7/20 | Denver Grizzlies | Western League | , | |
| Stub Smith | smith-001stu | 1906 | 8/11-9/14 | Memphis Egyptians | Southern Association | , | |
| Syd Smith | smith-001syd | 1906 | 4/11-9/15 | Atlanta Crackers | Southern Association | , | |
| Theodore Smith | smith-002the | 1906 | Grand Forks Forkers | Northern-Copper Country League | , | ||
| Thomas Smith | 1906 | 5/29-9/8 | Roanoke Tigers | Virginia League | , | ||
| Tim Smith | 1906 | +6/24-7/22+ | Jackson Convicts | Southern Michigan League | , | ||
| Tom Smith | smith-001tho | 1906 | 5/2-9/30 | Denver Grizzlies | Western League | , | |
| Tom Smith | smith-009tom | 1906 | 4/27-7/27 | Dayton Veterans | Central League | , | |
| Tom Smith | smith-009tom | 1906 | 7/30-9/25 | Grand Rapids Wolverines | Central League | , | |
| Tom Smith | 1906 | +5/26-8/23 | Battle Creek Crickets | Southern Michigan League | , | ||
| W. L. Smith | 1906 | 5/3-5/12+ | Bartlesville Indians | Kansas State League | , | ||
| Wib Smith | smith-003wil | 1906 | 5/7 | Grand Rapids Wolverines | Central League | , | |
| Wib Smith | smith-003wil | 1906 | +5/18-6/14+ | Erie Sailors | Interstate League | , | |
| Wib Smith | smith-003wil | 1906 | +7/21-9/8+ | Tecumseh | Southern Michigan League | , | |
| William Smith | smith-079wil | 1906 | Pitts.-Lyceum | Independent | , | ||
| William Smith | smith-079wil | 1906 | Acorn | Independent | , | ||
| Herbert Smithson | donova043--- | 1906 | no g. | Lowell Tigers | New England League | , | |
| Presley Smithwick | smithw001p-- | 1906 | 5/10-7/3+ | Memp.-Collegians | Independent | , | |
| Homer Smoot | smoot-001hom | 1906 | 86 g. | St. Louis | National League | St. Louis, MO | |
| Homer Smoot | smoot-001hom | 1906 | -10/7 | 60 g. | Cincinnati | National League | Cincinnati, OH |
| Harry Smythe | smythe003har | 1906 | 5/30-6/27 | Lowell Tigers | New England League | , | |
| Madison Smythe | 1906 | Cincinnati Univ | College | , | |||
| Madison Smythe | 1906 | no g. | Toledo Mud Hens | American Association | , | ||
| Madison Smythe | 1906 | Danville Red Sox | Virginia League | , | |||
| William Snedden | 1906 | 4/25-6/30 | Greenville Hunters | Texas League | , | ||
| Snitter | 1906 | Univ. Illinois | College | , | |||
| Snitter | 1906 | +7/2-8/25 | Ottawa | Northern Independent League | , | ||
| Snodgrass | 1906 | 5/3-6/15+ | Albany | Georgia State League | , | ||
| Snodgrass | 1906 | 6/14 | South McAlester Miners | South Central League | , | ||
| Fred Snodgrass | snodgr001fre | 1906 | Los Angeles Angels | Pacific Coast League | , | ||
| Walter Snodgrass | snodgr002wal | 1906 | 5/1-9/23 | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Joe Snooks | snooks001jos | 1906 | 5/3-5/29 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Joe Snooks | snooks001jos | 1906 | +8/19+ | 25 g. | Ottumwa Champs | Iowa League | , |
| James Snowden | 1906 | DuBois Miners | Interstate League | , | |||
| Snyder | 1906 | +6/3+ | Massillon OH | Independent | , | ||
| Snyder | 1906 | 9/4 | Wheeling Stogies | Central League | , | ||
| Roy Snyder | snyder001roy | 1906 | +6/1-9/4+ | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Van Snyder | snyder002c-- | 1906 | 62 g. | Fort Dodge Gypsumites | Iowa League | , | |
| William Snyder | snyder006wil | 1906 | +8/26+ | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Gus Soffel | soffel001aug | 1906 | 4/26-9/8 | Norwich Reds | Connecticut State League | , | |
| Sohni | sohni-002--- | 1906 | 5/12 | Cordele | Georgia State League | , | |
| Sohni | sohni-002--- | 1906 | 5/29-6/5 | Columbus/Brunswick River Snipes | Georgia State League | , | |
| Percy Solbraa | 1906 | 91 g. | Lake Linden Sandy Cities | Northern-Copper Country League | , | ||
| James Solomon | 1906 | 6/22-6/25 | Fall River Indians | New England League | , | ||
| John Somerlott | 1906 | +5/12+ | Fort Wayne | Interstate Association | , | ||
| John Somerlott | 1906 | g. ? | Kalamazoo White Sox | Southern Michigan League | , | ||
| John Somerlott | 1906 | +6/18-9/3 | Winnipeg Maroons | Northern-Copper Country League | , | ||
| Pete Sommers | sommer002pet | 1906 | 5/31-7/16 | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Sox Sorber | sorber001wal | 1906 | Americus Pallbearers | Georgia State League | , | ||
| Sox Sorber | sorber001wal | 1906 | 7/16-8/16 | Georgetown | South Carolina League | , | |
| C. Van Sorrell | sorrel003--- | 1906 | 4/19-4/29 | Gulfport Crabs | Cotton States League | , | |
| C. Van Sorrell | sorrel003--- | 1906 | 5/1+ | Vicksburg Hill Billies | Cotton States League | , | |
| C. Van Sorrell | sorrel003--- | 1906 | 8/20-9/4 | Gulfport Crabs | Cotton States League | , | |
| Quinton Sorrell | 1906 | +6/7-7/5+ | Americus Pallbearers | Georgia State League | , | ||
| Quinton Sorrell | 1906 | 7/16-7/21 | Manning | South Carolina League | , | ||
| William Sorrells | sorrel003wil | 1906 | 4/30-5/17 | Nashville Volunteers | Southern Association | , | |
| William Sorrells | sorrel003wil | 1906 | 5/21-5/29 | New Orleans Pelicans | Southern Association | , | |
| William Sorrells | sorrel003wil | 1906 | 5/31-9/15 | Nashville Volunteers | Southern Association | , | |
| Walter South | south-001wal | 1906 | 4/16-9/3 | Augusta Tourists | South Atlantic League | , | |
| Weldon South | south-001wel | 1906 | 15 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| Arthur Southwell | southw001art | 1906 | Leominster MA | Independent | , | ||
| Arthur Southwell | southw001art | 1906 | 7/12-7/18 | Holyoke Paperweights | Connecticut State League | , | |
| Bob Spade | spade-001rob | 1906 | 5/18-9/3 | Macon Brigands | South Atlantic League | , | |
| Bob Spade | spade-001rob | 1906 | 9/8-9/28 | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| Lawrence Spahr | 1906 | +5/15-6/14+ | Anderson | Interstate Association | , | ||
| Lawrence Spahr | 1906 | 7/22-9/25 | Wheeling Stogies | Central League | , | ||
| Spalding/Spau | 1906 | Lake Charles Creoles | South Texas League | , | |||
| Alva Spangler | spangl001alv | 1906 | 4/27-7/11 | Wheeling Stogies | Central League | , | |
| Albert Spanton | spanto001a-- | 1906 | +5/18+ | Macalester | Independent | , | |
| Albert Spanton | spanto001a-- | 1906 | 23 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| William Sparkman | 1906 | Charleston Med. | College | , | |||
| Sparks | 1906 | 5/1-6/14 | Shawnee Blues | South Central League | , | ||
| Sparks | 1906 | +7/19-7/21 | Shawnee Blues | South Central League | , | ||
| James Sparks | sparks001bax | 1906 | 4/21-9/13 | Atlanta Crackers | Southern Association | , | |
| Frank Spates | spates001fra | 1906 | Frostburg MD | Independent | , | ||
| Frank Spates | spates001fra | 1906 | +6/12+ | Cumb-Young Jrs. | Independent | , | |
| Frank Spates | spates001fra | 1906 | 7/14 | Washington | Pennsylvania-Ohio-Maryland League | , | |
| Frank Spates | spates001fra | 1906 | 7/17 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| William Spates | 1906 | Frostburg MD | Independent | , | |||
| William Spates | 1906 | 6/11-6/28 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| William Spates | 1906 | 7/14-8/1 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Carl Speaker | 1906 | +6/10-6/18+ | Saginaw | Interstate Association | , | ||
| Carl Speaker | 1906 | +7/13-8/27+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| Carl Speaker | 1906 | Glenburn ND | Independent | , | |||
| Tristam Speaker | 1906 | 5/21-9/2 | Cleburne Railroaders | Texas League | , | ||
| William Speas | 1906 | 4/28-9/29 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Howard Speck | speck-001how | 1906 | +5/4-5/19+ | Guthrie Senators | South Central League | , | |
| Howard Speck | speck-001how | 1906 | 5/31-9/9 | Bartlesville Indians | Kansas State League | , | |
| Ross Speck | speck-001ros | 1906 | +5/9+ | 10 g. | Bartlesville Indians | Kansas State League | , |
| Kid Speer | speer-002geo | 1906 | 5/4-8/2 | Leavenworth Old Soldiers | Western Association | , | |
| Kid Speer | speer-002geo | 1906 | 8/6-9/23 | Wichita Jobbers | Western Association | , | |
| Fred Speery | 1906 | Cumberland WV | , | ||||
| Jack Speery | 1906 | Cant.-Entre Nous | Independent | , | |||
| Al Speiser | speise001a-- | 1906 | 5/19-7/29 | Hancock Infants | Northern-Copper Country League | , | |
| Al Speiser | speise001a-- | 1906 | +8/20+ | 12 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , |
| Spencer | 1906 | Waterloo Microbes | Iowa League | , | |||
| Spencer | 1906 | Des Moines Champs | Western League | , | |||
| Spencer | 1906 | 6/13-7/5 | Americus Pallbearers | Georgia State League | , | ||
| Spencer | 1906 | 7/21-8/15 | Manning | South Carolina League | , | ||
| Spencer | 1906 | 8/16-8/18 | Georgetown | South Carolina League | , | ||
| Albert Spencer | spence001alb | 1906 | 119 g. | Marshalltown Brownies | Iowa League | , | |
| Charles Spencer | 1906 | 4/26-5/25 | Greenville Hunters | Texas League | , | ||
| Charles Spencer | 1906 | Amarillo TX | Independent | , | |||
| Clark Spencer | spence001cla | 1906 | Lake Charles Creoles | South Texas League | , | ||
| Clark? Spencer | 1906 | +7/13-7/15+ | South McAlester Miners | South Central League | , | ||
| Collis Spencer | spence001col | 1906 | 5/3-9/16 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Dit Spencer | spence001d-- | 1906 | 42 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | |
| Dit Spencer | spence001d-- | 1906 | 6/21-6/29 | Oklahoma City Mets | Western Association | , | |
| Dit Spencer | spence001d-- | 1906 | 34 g. | Lake Charles Creoles | South Texas League | , | |
| Frank Spencer | spence001fra | 1906 | 32 g. | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Hack Spencer | spence001fre | 1906 | Red Wing MN | Independent | , | ||
| Harry Spencer | spence001hen | 1906 | 178 g. | San Francisco Seals | Pacific Coast League | , | |
| Tubby Spencer | spence002edw | 1906 | St. Louis | American League | St. Louis, MO | ||
| Wirt Spencer | spence001wir | 1906 | +5/30-9/3 | Umpire | Texas League | , | |
| Harry Spies | spies-001hen | 1906 | Los Angeles Angels | Pacific Coast League | , | ||
| Harry Spies | spies-001hen | 1906 | San Francisco Seals | Pacific Coast League | , | ||
| Matt Spiesman | spiesm002mat | 1906 | 5/11-9/23 | Troy Trojans | New York State League | , | |
| George Spooner | spoone001geo | 1906 | 4/27-8/31 | Lawrence Colts | New England League | , | |
| Joseph Sporer | sporer001jos | 1906 | 5/11-5/15 | Minneapolis Millers | American Association | , | |
| Joseph Sporer | sporer001jos | 1906 | +6/18-9/3 | Winnipeg Maroons | Northern-Copper Country League | , | |
| Jack Spratt | spratt001wil | 1906 | Olean Refiners | Interstate League | , | ||
| Jimmy Spring | 1906 | +5/24+ | Amherst College | College | , | ||
| Charles Springer | 1906 | 7/23 | Washington | Pennsylvania-Ohio-Maryland League | , | ||
| Charles Springer | 1906 | 8/6-8/7 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | ||
| Charles Springer | 1906 | 8/21-9/15 | Washington | Pennsylvania-Ohio-Maryland League | , | ||
| Charles Springer | 1906 | Wash. & Jeff. Col. | College | , | |||
| Sproule | 1906 | 4/30-5/5 | Temple Boll Weevils | Texas League | , | ||
| St. John | 1906 | +6/9+ | Valdosta Stars | Georgia State League | , | ||
| Roy St. John | stjohn001roy | 1906 | 5/4-5/5 | Oklahoma City Mets | Western Association | , | |
| Roy St. John | stjohn001roy | 1906 | 5/8-7/30+ | Muskogee Indians | South Central League | , | |
| Cy Stackpole | stackp001art | 1906 | 5/1-8/15 | Holyoke Paperweights | Connecticut State League | , | |
| Louis Stadler | 1906 | 16 g. | Oshkosh Indians | Wisconsin State League | , | ||
| Staehle | 1906 | +6/23-8/3+ | Umpire | Virginia League | , | ||
| John Stafford | staffo001joh | 1906 | 4/27-9/8 | Umpire | New England League | , | |
| Robert Stafford | staffo003rob | 1906 | 4/11-6/7 | Nashville Volunteers | Southern Association | , | |
| Chick Stahl | stahl-001cha | 1906 | 155 g. | Boston | American League | Boston, MA | |
| Fred Stahl | 1906 | 5/3- | Fort Wayne | Interstate Association | , | ||
| Fred Stahl | 1906 | 6/11-6/20+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| Fred Stahl | 1906 | Winnipeg Maroons | Northern-Copper Country League | , | |||
| Jake Stahl | stahl-001gar | 1906 | 137 g. | Washington | American League | Washington, DC | |
| Harry Stahlhefer | stahlh001har | 1906 | 9/17-9/25 | Evansville River Rats | Central League | , | |
| George Stallings | stalli002geo | 1906 | 4/26-9/23 | Buffalo Bisons | Eastern League | , | |
| Frederick Stamler | stamle001jam | 1906 | 4/29-6/1 | Sharon Steels | Ohio-Pennsylvania League | , | |
| Oscar Stanage | stanag001osc | 1906 | Stockton Millers | California League | , | ||
| Oscar Stanage | stanag001osc | 1906 | 5/19 | Cincinnati | National League | Cincinnati, OH | |
| Oscar Stanage | stanag001osc | 1906 | 8/4-9/20 | Newark Sailors | Eastern League | , | |
| George Stanford | 1906 | 5/1-5/2 | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| George Stanford | 1906 | +7/9+ | Conneaut | Trolley League | , | ||
| Tom Stankard | stanka001tho | 1906 | Beverly MA | Independent | , | ||
| Tom Stankard | stanka001tho | 1906 | 5/21-9/8 | Springfield Ponies | Connecticut State League | , | |
| Stanley | 1906 | 5/1 | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Buck Stanley | stanle001joh | 1906 | 4/27-8/25 | Norfolk Tars | Virginia League | , | |
| Buck Stanley | stanle001joh | 1906 | 9/8-9/23 | Montreal Royals | Eastern League | , | |
| Joe Stanley | stanle003jos | 1906 | 73 g. | Washington | American League | Washington, DC | |
| Matt Stanley | stanle001mat | 1906 | 4/28-6/24 | Spokane Indians | Northwestern League | , | |
| Matt Stanley | stanle001mat | 1906 | Coeur d’Alene | Independent | , | ||
| Matt Stanley | stanle001mat | 1906 | 9/1-9/3 | Spokane Indians | Northwestern League | , | |
| Andrew Stanton | 1906 | 5/10-5/21 | Umpire | New York State League | , | ||
| Arthur Stanton | 1906 | 8/24-9/6 | Chanute Browns | Kansas State League | , | ||
| Claude Stark | stark-001cla | 1906 | 109 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | |
| Dolly Stark | stark-001mon | 1906 | 5/3-6/5+ | Erie Sailors | Interstate League | , | |
| Dolly Stark | stark-001mon | 1906 | 6/7-6/8+ | Grand Rapids Wolverines | Central League | , | |
| Dolly Stark | stark-001mon | 1906 | +6/23-9/18+ | Tecumseh | Southern Michigan League | , | |
| Thomas Stark | stark-001tho | 1906 | 116 g. | Marshalltown Brownies | Iowa League | , | |
| Con Starkel | starke001con | 1906 | 4/19 | Washington | American League | Washington, DC | |
| Con Starkel | starke001con | 1906 | 4/28-5/26 | Baltimore Orioles | Eastern League | , | |
| Con Starkel | starke001con | 1906 | 6/15-9/21 | Albany Senators | New York State League | , | |
| Fred Starkey | 1906 | 5/2-5/31 | Pueblo Indians | Western League | , | ||
| Fred Starkey | 1906 | +6/3+ | Cripple Creek CO | Independent | , | ||
| George Starnagle | starna001geo | 1906 | 4/25-9/15 | Altoona Mountaineers | Tri-State League | , | |
| Charlie Starr | starr-001cha | 1906 | 4/25-9/3 | Harrisburg Senators | Tri-State League | , | |
| Charlie Starr | starr-001cha | 1906 | 9/6-9/17 | Baltimore Orioles | Eastern League | , | |
| Fred Starr | 1906 | 18 g. | Lake Charles Creoles | South Texas League | , | ||
| William Staton | 1906 | 5/3- | Fort Scott Giants | Kansas State League | , | ||
| William Staton | 1906 | 33 g. | Independence Coyotes | Kansas State League | , | ||
| Harry Stauffer | stauff001hen | 1906 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | ||
| Harry Stauffer | stauff001hen | 1906 | 5/28 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Harry Stauffer | stauff001hen | 1906 | Peoria Distillers | Illinois-Indiana-Iowa League | , | ||
| Charles Stecher | steche001cha | 1906 | 4/20-8/6 | Louisville Colonels | American Association | , | |
| Charles Stecher | steche001cha | 1906 | 8/16-9/11 | Denver Grizzlies | Western League | , | |
| Steele | 1906 | 6/16-6/22 | Darlington | South Carolina League | , | ||
| Steele | 1906 | 6/26-6/29 | Manning | South Carolina League | , | ||
| Steele | 1906 | 7/24 | Jackson Senators | Cotton States League | , | ||
| Elmer Steele | steele001elm | 1906 | 139 ab | Poughkeepsie Colts | Hudson River League | , | |
| Fred Steele | steele001fre | 1906 | 65 g. | Oskaloosa Quakers | Iowa League | , | |
| Farmer Steelman | steelm001mor | 1906 | 4/26-9/22 | Rochester Bronchos | Eastern League | , | |
| Clarence Steen | 1906 | Creighton Univ. | College | , | |||
| Clarence Steen | 1906 | 35 g. | Ottumwa Champs | Iowa League | , | ||
| Clarence Steen | 1906 | 6/257/19 | Lincoln Ducklings | Western League | , | ||
| Clarence Steen | 1906 | Kearney NE | Independent | , | |||
| Clarence Steen | 1906 | 9/5-9/30 | Lincoln Ducklings | Western League | , | ||
| William Steen | 1906-11 | Wash. & Jeff. Col. | College | , | |||
| Stefe | 1906 | 7/16 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Harry Steiger | 1906 | +6/1-9/23 | Jackson Convicts | Southern Michigan League | , | ||
| Fred Stem | stem--001fre | 1906 | 6/11-8/18 | Darlington | South Carolina League | , | |
| Fred Stem | stem--001fre | 1906 | 8/22 | Danville Red Sox | Virginia League | , | |
| Stephens | 1906 | Americus Pallbearers | Georgia State League | , | |||
| Jim Stephens | stephe001jam | 1906 | 4/30-6/30 | Greenville Hunters | Texas League | , | |
| Jim Stephens | stephe001jam | 1906 | 7/1-9/2 | Dallas Giants | Texas League | , | |
| Lenard Stephens | stephe001len | 1906 | 5/5-7/7 | Americus Pallbearers | Georgia State League | , | |
| Lenard Stephens | stephe001len | 1906 | 7/16-8/11 | Manning | South Carolina League | , | |
| Lenard Stephens | stephe001len | 1906 | 8/13-8/14 | Darlington | South Carolina League | , | |
| James Stephenson | 1906 | 8 g. | Galveston Sand Crabs | South Texas League | , | ||
| Louis Sterling | sterli001lou | 1906 | Geneva | Empire State League | , | ||
| Carl Sterzer | 1906 | 6/27-7/6 | Roanoke Tigers | Virginia League | , | ||
| Carl Sterzer | 1906 | 6/27-7/6 | Roanoke Tigers | Virginia League | , | ||
| Jay Stetler | stetle001per | 1906 | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| Jay Stetler | stetle001per | 1906 | 6/28-9/14 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| John Stevens | 1906 | Mount Clemens Bathers | Southern Michigan League | , | |||
| Stewart Stevens | 1906 | 4/28-9/8 | Norwich Reds | Connecticut State League | , | ||
| Walter Stevens | stjohn004--- | 1906 | +4/30-5/3 | Terre Haute Hottentots | Central League | , | |
| Walter Stevens | stjohn004--- | 1906 | 5/19- | Hancock Infants | Northern-Copper Country League | , | |
| Walter Stevens | stjohn004--- | 1906 | +6/1-6/26+ | Houghton Giants | Northern-Copper Country League | , | |
| Walter Stevens | stjohn004--- | 1906 | +7/19-9/3 | Duluth White Sox | Northern-Copper Country League | , | |
| Andrew Stevenson | 1906 | St.L.-Cahokia | Independent | , | |||
| Andrew Stevenson | 1906 | Fort Worth Panthers | Texas League | , | |||
| Paul Stevenson | 1906 | 5/16 | Meridian Ribboners | Cotton States League | , | ||
| John Steventon | steven007joh | 1906 | 5/2-5/14 | Manchester Textiles | New England League | , | |
| Joseph Steverding | 1906 | Clev.-East High | High School | , | |||
| Joseph Steverding | 1906 | +5/28-6/9 | Grand Forks Forkers | Northern-Copper Country League | , | ||
| Joseph Steverding | 1906 | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |||
| Joseph Steverding | 1906 | +6/25-8/31+ | Elyria OH | Independent | , | ||
| Stewart | 1906 | 7/21 | South Bend Greens | Central League | , | ||
| Ace Stewart | stewar001ace | 1906 | 4/19-9/3 | Jackson Senators | Cotton States League | , | |
| Ace Stewart | stewar001ace | 1906 | 5 g. | Iola Grays/Cherryvale Boosters | Kansas State League | , | |
| Charles Stewart | stewar001duc | 1906 | 5/19-7/29 | Hancock Infants | Northern-Copper Country League | , | |
| Charles Stewart | stewar001duc | 1906 | 7/30-9/3 | Fargo | Northern-Copper Country League | , | |
| Ed Stewart | 1906 | 5/3-6/14 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Ed Stewart | 1906 | 6/15-7/14 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Ed Stewart | 1906 | 49 g. | San Antonio Bronchos | South Texas League | , | ||
| Ed Stewart | 1906 | +8/1-9/3 | Umpire | Texas League | , | ||
| Harry Stewart | stewar005har | 1906 | 4/23-5/15 | Macon Brigands | South Atlantic League | , | |
| Harry Stewart | stewar005har | 1906 | 5/26-7/4+ | Cordele | Georgia State League | , | |
| Harry Stewart | stewar005har | 1906 | 7/9-9/7 | Lynchburg Shoemakers | Virginia League | , | |
| Joe Stewart | stewar003jos | 1906 | 4/28-8/26 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| Joe Stewart | stewar003jos | 1906 | 8/28-9/21 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| Zeke Stewart | 1906 | 6/18-7/14 | Vicksburg Hill Billies | Cotton States League | , | ||
| Stickerman | 1906 | 5/16 | Guthrie Senators | South Central League | , | ||
| Henry Stickney | stickn001abr | 1906 | 4/12-4/30 | Shreveport Pirates | Southern Association | , | |
| Henry Stickney | stickn001abr | 1906 | 5/31-9/4 | Gulfport Crabs | Cotton States League | , | |
| Henry Stickney | stickn001abr | 1906 | 9/11-9/15 | Montgomery Senators | Southern Association | , | |
| Stephen Stift | 1906 | +8/12+ | Dixon IL | Independent | , | ||
| Frank Still | still-001fra | 1906 | 32 g. | Richmond Colts | Virginia League | , | |
| Leland Stillman | stillm001lee | 1906 | 5/5-6/16 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Leland Stillman | stillm001lee | 1906 | +8/10+ | 21 g. | Fort Dodge Gypsumites | Iowa League | , |
| Billy Stillwell | 1906 | 5/24-6/9 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| Archie Stimmel | stimme001arc | 1906 | 5/7-9/29 | Pueblo Indians | Western League | , | |
| George Stinson | stinso001geo | 1906 | 4/17-4/21 | Atlanta Crackers | Southern Association | , | |
| George Stinson | stinso001geo | 1906 | 5/26-6/22 | Atlanta Crackers | Southern Association | , | |
| George Stinson | stinso001geo | 1906 | 7/2-9/3 | Macon Brigands | South Atlantic League | , | |
| Charles Stis | 1906 | 5/4-6/14 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| Charles Stis | 1906 | 6/16-9/23 | Springfield Midgets | Western Association | , | ||
| Otis Stocksdale | stocks002oti | 1906 | 7/15-9/14 | Memphis Egyptians | Southern Association | , | |
| Amasa Stollenwerck | stolle001--- | 1906 | 8/ - | Selma AL | Independent | , | |
| Amasa Stollenwerck | stolle001--- | 1906 | Tulane Medical | College | , | ||
| Stone | 1906 | 6/18-6/26 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| George Stone | stone-003geo | 1906 | 154 g. | St. Louis | American League | St. Louis, MO | |
| Howard Stone | stone-001how | 1906 | 4/28-7/4 | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Howard Stone | stone-001how | 1906 | 7/18-7/28 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Herb Stoner | stoner001her | 1906 | 4/20-9/16 | Louisville Colonels | American Association | , | |
| Harry Storch | storch001har | 1906 | Kent OH | Independent | , | ||
| Alan Storke | storke001ala | 1906 | Auburn | Empire State League | , | ||
| Alan Storke | storke001ala | 1906 | 8/1-9/22 | Providence Grays | Eastern League | , | |
| Alan Storke | storke001ala | 1906 | 9/24- | 5 g. | Pittsburgh | National League | Pittsburgh, PA |
| Tom Stouch | stouch001tom | 1906 | U, Georgia | College | , | ||
| Joseph Stoup | stvrai001jam | 1906 | 5/12-5/27 | Des Moines Champs | Western League | , | |
| Joseph Stoup | stvrai001jam | 1906 | +6/5+ | Elyria OG | Independent | , | |
| Joseph Stoup | stvrai001jam | 1906 | 7/6-9/29 | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Francis Stout | 1906 | +9/12-9/23 | Jackson Convicts | Southern Michigan League | , | ||
| George Stovall | stoval001geo | 1906 | Cleveland | American League | Cleveland, OH | ||
| Jesse Stovall | stoval001jes | 1906 | 4/19-5/11 | St. Paul Saints | American Association | , | |
| Jesse Stovall | stoval001jes | 1906 | 5/16-9/16 | Louisville Colonels | American Association | , | |
| Samuel Stovall | stoval001sam | 1906 | 4/27-4/28 | Dallas Giants | Texas League | , | |
| Samuel Stovall | stoval001sam | 1906 | 6/10-6/13 | Dallas Giants | Texas League | , | |
| Samuel Stovall | stoval001sam | 1906 | 6/19-6/30 | Greenville Hunters | Texas League | , | |
| Samuel Stovall | stoval001sam | 1906 | 7/1-7/16 | Waco Navigators | Texas League | , | |
| Samuel Stovall | stoval001sam | 1906 | 49 g. | San Antonio Bronchos | South Texas League | , | |
| Stewart Strader | strade001ste | 1906 | Macon Brigands | South Atlantic League | , | ||
| Sammy Strang | strang001sam | 1906 | 123 g. | New York | National League | New York, NY | |
| Milo Stratton | stratt001mil | 1906 | 4/12-9/12 | New Orleans Pelicans | Southern Association | , | |
| H. E. Strawbridge | 1906 | 15 g. | Wausau Lumberjacks | Wisconsin State League | , | ||
| Dan Strebeigh | strebe001dan | 1906 | 27 g. | Portsmouth Truckers | Virginia League | , | |
| Donald Strebeigh | strebe001dan | 1906 | 27 g. | Portsmouth Truckers | Virginia League | , | |
| Gabby Street | street001cha | 1906 | 4/30-9/14 | Williamsport Millionaires | Tri-State League | , | |
| Gabby Street | street001cha | 1906 | 11 g. | San Francisco Seals | Pacific Coast League | , | |
| Julie Streib | streib001jul | 1906 | San Jose Prune Pickers | California League | , | ||
| Julie Streib | streib001jul | 1906 | Oakland Commuters | California League | , | ||
| Julie Streib | streib001jul | 1906 | 9/3- | Seattle Siwashes | Pacific Coast League | , | |
| Theodore Streib | streib001the | 1906 | Oakland Commuters | California League | , | ||
| Theodore Streib | streib001the | 1906 | San Jose Prune Pickers | California League | , | ||
| Oscar Streit | streit001osc | 1906 | 5/14-9/6 | Binghamton Bingoes | New York State League | , | |
| Phil Stremmel | stremm001phi | 1906 | 66 g. | Green Bay Colts | Wisconsin State League | , | |
| Stringer | 1906 | 9/10-9/11 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | ||
| Frederick Stripp | stripp001fre | 1906 | 47 g. | Fargo | Northern-Copper Country League | , | |
| Allie Strobel | strobe001alb | 1906 | -8/11 | 100 g. | Boston | National League | Boston, MA |
| Billy Stroh | stroh-001wil | 1906 | 4/26-9/6 | Altoona Mountaineers | Tri-State League | , | |
| George Stroh | stroh-001geo | 1906 | 5/13-5/26 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| George Stroh | stroh-001geo | 1906 | 6/3-6/9 | Albany Senators | New York State League | , | |
| George Stroh | stroh-001geo | 1906 | 7/2-9/23 | Utica Pent-Ups | New York State League | , | |
| Herman Strom | strom-001her | 1906 | Erie Sailors | Interstate League | , | ||
| Strong | 1906 | 7/30- | South Bend Greens | Central League | , | ||
| Strong | 1906 | +8/11-8/12 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Fred Strood | strood001fre | 1906 | 4/28-9/29 | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| Con Strothers | stroth001joh | 1906 | 7/5-8/1 | Roanoke Tigers | Virginia League | , | |
| Isaac Stroud | 1906 | 9/6-9/14 | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | ||
| Charles Stroup | 1906 | 8/29 | Evansville River Rats | Central League | , | ||
| Charles Strub | strub-001cha | 1906 | Sacramento Cordovas | California League | , | ||
| Bill Stuart | stuart001bil | 1906 | 5/16 | Umpire | Kansas State League | , | |
| William Sturgeon | 1906 | No. Pacific | Spokane City League | , | |||
| Wilson Sturtevant | 1906 | 5/30-6/2 | Portsmouth Truckers | Virginia League | , | ||
| Wilson Sturtevant | 1906 | 9/7-9/8 | Norfolk Tars | Virginia League | , | ||
| Ed Stutsman | stutsm001e-- | 1906 | 5/15-5/27+ | Kalamazoo White Sox | Southern Michigan League | , | |
| Sublet/t | 1906 | 7/4 | Manning | South Carolina League | , | ||
| Sublet/t | 1906 | 8/10 | Darlington | South Carolina League | , | ||
| Sublet/t | 1906 | 8/13 | Manning | South Carolina League | , | ||
| Frank Suess | suess-001fra | 1906 | 4/28-9/3 | Spokane Indians | Northwestern League | , | |
| Frank Suess | suess-001fra | 1906 | 4/28-9/3 | Spokane Indians | Northwestern League | , | |
| Joe Sugden | sugden001jos | 1906 | 4/18-9/16 | St. Paul Saints | American Association | , | |
| George Suggs | suggs-001geo | 1906 | 4/19-9/15 | Memphis Egyptians | Southern Association | , | |
| Wilford Sullinger | sullin001f-- | 1906 | 4/25-6/10 | Temple Boll Weevils | Texas League | , | |
| Wilford Sullinger | sullin001f-- | 1906 | 40 g. | Keokuk Indians | Iowa League | , | |
| Wilford Sullinger | sullin001f-- | 1906 | Muskogee Indians | South Central League | , | ||
| Wilford Sullinger | sullin001f-- | 1906 | Anadarko/Chickasha | Independent | , | ||
| Sullivan | 1906 | Easton | Atlantic League | , | |||
| Denny Sullivan | sulliv001den | 1906 | 4/18-9/17 | Minneapolis Millers | American Association | , | |
| F. P. Sullivan | 1906 | 4/27-5/19 | Umpire | New England League | , | ||
| Harry Sullivan | sulliv003har | 1906-09 | St. Louis Univ. | College | , | ||
| Jack Sullivan | sulliv023joh | 1906 | Rockville CT | Independent | , | ||
| James Sullivan | sulliv118--- | 1906 | 4/28-7/11 | Grays Harbor Lumbermen | Northwestern League | , | |
| James Sullivan | sulliv118--- | 1906 | 7/14-7/19 | Butte Miners | Northwestern League | , | |
| James Sullivan | 1906 | Villanova College | College | , | |||
| James Sullivan | 1906 | 6/25- | Lowell Tigers | New England League | , | ||
| James Sullivan | 1906 | New Bedford Whalers | New England League | , | |||
| James Sullivan | 1906 | 9/3- | Lynn Shoemakers | New England League | , | ||
| Jim Sullivan | sulliv006jam | 1906 | 4/15-4/29 | New Orleans Pelicans | Southern Association | , | |
| Jim Sullivan | sulliv006jam | 1906 | Sacramento Cordovas | California League | , | ||
| John Sullivan | sulliv004joh | 1906 | 4/18-9/16 | Kansas City Blues | American Association | , | |
| John Sullivan | sulliv004joh | 1906 | 8/29-8/30 | Topeka White Sox | Western Association | , | |
| John Sullivan | sulliv003joh | 1906 | 4/27-9/8 | Fall River Indians | New England League | , | |
| John Sullivan | sulliv005joh | 1906 | 4/25-7/5 | Dallas Giants | Texas League | , | |
| Neil Sullivan | 1906 | Hornell/Patton Pigmies | Interstate League | , | |||
| Neil Sullivan | 1906 | 9/13-9/23 | Binghamton Bingoes | New York State League | , | ||
| Percy Sullivan | sulliv001per | 1906 | 5/7-8/13 | Lowell Tigers | New England League | , | |
| Suter Sullivan | sulliv002sut | 1906 | 4/18-9/16 | Louisville Colonels | American Association | , | |
| Thomas Sullivan | sulliv006tho | 1906 | 26 g. | Freeport Pretzels | Wisconsin State League | , | |
| Thomas Sullivan | sulliv006tho | 1906 | Woodstock IL | Independent | , | ||
| Walter Sullivan | sulliv005joh | 1906 | 74 g. | Dallas Giants | Texas League | , | |
| Walter Sullivan | sulliv005joh | 1906 | 21 g. | San Antonio Bronchos | South Texas League | , | |
| Walter Sullivan | sulliv005joh | 1906 | 20 g. | Houston Buffaloes | South Texas League | , | |
| William Sullivan | 1906 | 4/18-8/28 | Umpire | American Association | , | ||
| Ed Summers | summer001ora | 1906 | 4/27-5/20 | Indianapolis Indians | American Association | , | |
| Ed Summers | summer001ora | 1906 | 5/25-9/23 | Indianapolis Indians | American Association | , | |
| Frank Summers | 1906 | +5/31-6/30 | Duluth White Sox | Northern-Copper Country League | , | ||
| Frank Summers | 1906 | Duluth White Sox | Northern-Copper Country League | , | |||
| Bill Sump | sump--001wil | 1906 | Waterloo Microbes | Iowa League | , | ||
| Bill Sump | sump--001wil | 1906 | 24 g. | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | |
| John Sundheim | 1906 | 5/19-8/9+ | Houghton Giants | Northern-Copper Country League | , | ||
| John Sundheim | 1906 | 83 g. | Houghton Giants | Northern-Copper Country League | , | ||
| William Supple | 1906 | 9/21-9/29 | MLB Umpire | National League | , | ||
| Bert Supplee | 1906 | 8/28-9/8 | Wheeling Stogies | Central League | , | ||
| John Sussman | sussma001j-- | 1906 | 4/26-5/18 | New Haven Blues | Connecticut State League | , | |
| Harry Suter | suter-001har | 1906 | 35 g. | Austin Senators | South Texas League | , | |
| Jack Sutthoff | suttho001joh | 1906 | 4/24-9/15 | Toledo Mud Hens | American Association | , | |
| Larry Sutton | sutton001lar | 1906 | Oswego | Empire State League | , | ||
| Myron Sutton | sutton001car | 1906 | Oil City-Jamestown Oseejays | Interstate League | , | ||
| Harry Swacina | swacin001har | 1906 | 117 g. | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Charles Swain | swain-002cha | 1906 | 4/28-9/3 | Spokane Indians | Northwestern League | , | |
| Charles Swain | swain-002cha | 1906 | San Jose Prune Pickers | California League | , | ||
| Charles Swain | swain-002cha | 1906 | San Francisco Orphans | California League | , | ||
| Albert Swalm | swalm-001alb | 1906 | 118 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Charles Swalm | 1906 | in Iowa | , | ||||
| Harry Swalm | swalm-001har | 1906 | 32 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | |
| Arthur Swan | swan--000cas | 1906 | +7/1+ | Basin MT | Independent | , | |
| Oscar Swan | swann-001o-- | 1906 | 4/18-9/16 | Kansas City Blues | American Association | , | |
| Pinky Swander | swande002edw | 1906 | 4/27-9/8 | Waterbury Authors | Connecticut State League | , | |
| Swanders | 1906 | +7/4-8/21+ | Titusville PA | Independent | , | ||
| Ivor Swanson | swanso001ivo | 1906 | 4/28-9/8 | Fall River Indians | New England League | , | |
| Hugo Swartling | 1906 | +7/21+ | Pitt.-Shaners | Independent | , | ||
| Fred Swartzel | 1906 | 4/28-8/7 | Fort Smith Razorbacks | South Central League | , | ||
| Fred Swartzel | 1906 | -9/9 | 15 g. | Iola Grays/Cherryvale Boosters | Kansas State League | , | |
| Frank Swayne | swayne001fra | 1906 | 5/10-9/23 | Utica Pent-Ups | New York State League | , | |
| Alex. Sweeney | sweene001ale | 1906 | 5/3-6/5 | Harrisburg Senators | Tri-State League | , | |
| Alex. Sweeney | sweene001ale | 1906 | 6/12-6/25 | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| Alex. Sweeney | sweene001ale | 1906 | 6/30-9/15 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Bill Sweeney | sweene001wil | 1906 | 169 g. | Portland Beavers | Pacific Coast League | , | |
| Charles Sweeney | 1906 | 5/29 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | ||
| Ed Sweeney | sweene002edw | 1906 | 5/14-9/3 | Columbia Gamecocks | South Atlantic League | , | |
| Edward Sweeney | sweene002edw | 1906 | 262 ab | Kingston Colonials | Hudson River League | , | |
| Michael Sweeney | sweene009mic | 1906 | Elmira NY | Independent | , | ||
| Patrick Sweeney | sweene001pat | 1906 | 5/26-8/22 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Charlie Swindells | swinde001cha | 1906 | 4/28-9/3 | Butte Miners | Northwestern League | , | |
| Ed Switzer | switze001j-- | 1906 | 22 g. | Lake Charles Creoles | South Texas League | , | |
| Walter Swope | swope-001wal | 1906 | 5/1- | Lynn Shoemakers | New England League | , | |
| Walter Swope | swope-001wal | 1906 | Manchester Textiles | New England League | , | ||
| Walter Swope | swope-001wal | 1906 | 9/8- | Fall River Indians | New England League | , | |
| Len Swormstedt | sworms001leo | 1906 | 5/15-9/21 | Troy Trojans | New York State League | , | |
| Len Swormstedt | sworms001leo | 1906 | -10/6 | 3 g. | Boston | American League | Boston, MA |
| Harry Syfert | syfert001har | 1906 | 37 g. | Decatur Commodores | Illinois-Indiana-Iowa League | , | |
| Edward Sykes | sykes-010--- | 1906 | 5/24-7/6 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Edward Sykes | sykes-010--- | 1906 | +8/29+ | Oil City-Jamestown Oseejays | Interstate League | , | |
| Sykora | 1906 | 8/11 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Louis Sylvester | sylves001lou | 1906 | 4/16-5/28 | Savannah Indians | South Atlantic League | , | |
| Louis Sylvester | sylves001lou | 1906 | +7/11+ | Rutland | Northern Independent League | , | |
| Louis Sylvester | sylves001lou | 1906 | +8/4+ | North Attleboro | Independent | , | |
| Symanski | 1906 | 8/29-9/16 | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| William Taaffe | taffee001w-- | 1906 | +8/5+ | Evan-Jasper Reds | Independent | , | |
| William Taaffe | taffee001w-- | 1906 | Cairo Giants | Kentucky-Illinois-Tennessee League | , | ||
| William Taaffe | taffee001w-- | 1906 | no g. | Evansville River Rats | Central League | , | |
| William Taaffe | taffee001w-- | 1906 | 9/20-9/21 | South Bend Greens | Central League | , | |
| William Taber | 1906 | Auburn | Empire State League | , | |||
| Harry Tackaberry | tackab001har | 1906 | 6/28-7/11 | Umpire | Southern Association | , | |
| Delbert Tadlock | 1906 | 19 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | ||
| Frank Talbot | 1906 | +8/19+ | Muskegon MI | Independent | , | ||
| Frank Talbot | 1906 | 9/20 | Terre Haute Hottentots | Central League | , | ||
| James Tamsett | tamset001jam | 1906 | 4/26-6/28 | Toronto Maple Leafs | Eastern League | , | |
| James Tamsett | tamset001jam | 1906 | 7/5 | Harrisburg Senators | Tri-State League | , | |
| James Tamsett | tamset001jam | 1906 | 7/6-7/24 | Lancaster Red Roses | Tri-State League | , | |
| James Tamsett | tamset001jam | 1906 | 7/25-9/15 | Harrisburg Senators | Tri-State League | , | |
| Eugene Tansey | tansey001eug | 1906 | 4/26-9/8 | Springfield Ponies | Connecticut State League | , | |
| Robert Tarleton | tarlet001rob | 1906 | 106 g. | Baton Rouge Cajuns | Cotton States League | , | |
| James Tarr | tarr--000jam | 1906 | 4/28-4/30 | Fort Smith Razorbacks | South Central League | , | |
| James Tarr | tarr--000jam | 1906 | 5/6-5/29 | Shawnee Blues | South Central League | , | |
| Tarrer | 1906 | 6/11-8/13 | Manning | South Carolina League | , | ||
| Tarrer | 1906 | 8/14-8/18 | Georgetown | South Carolina League | , | ||
| Harry Tate | tate--001har | 1906 | Winchester | , | |||
| Hughie Tate | tate--001hug | 1906 | 5/2-6/23 | Sioux City Packers | Western League | , | |
| Hughie Tate | tate--001hug | 1906 | 7/2- | Cumberland Rooters | Pennsylvania-Ohio-Maryland League | , | |
| Taylor | 1906 | 6/11-6/20 | Georgetown | South Carolina League | , | ||
| Eddie Taylor | taylor001edd | 1906 | 129 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| Edwin Taylor | 1906 | 5/15-9/23 | Mount Clemens Bathers | Southern Michigan League | , | ||
| Harry Taylor | 1906 | Montreal-Indep | Independent | , | |||
| Harry Taylor | 1906 | 4/26-5/16 | Springfield Ponies | Connecticut State League | , | ||
| Leroy Taylor | 1906 | 6/6 | Memphis Egyptians | Southern Association | , | ||
| Leroy Taylor | 1906 | Pine Bluff Barristers | Arkansas-Texas League | , | |||
| Luther Taylor | taylor001lut | 1906 | New York | National League | New York, NY | ||
| M. Owen Taylor | taylor001m-- | 1906 | 5/19-9/3 | Houghton Giants | Northern-Copper Country League | , | |
| Peter Taylor | taylor002pet | 1906 | 5/16 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Peter Taylor | taylor002pet | 1906 | Gillespie | Trolley League | , | ||
| Peter Taylor | taylor002pet | 1906 | 8/4-8/24 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Peter Taylor | taylor002pet | 1906 | 9/17-9/25 | Evansville River Rats | Central League | , | |
| Roy Taylor | taylor005r-- | 1906 | 8/31 | Lowell Tigers | New England League | , | |
| S. W. Taylor | 1906 | 6/11-8/18 | Orangeburg | South Carolina League | , | ||
| Thomas Taylor | 1906 | 4/23-5/5 | Charleston Sea Gulls | South Atlantic League | , | ||
| Thomas Taylor | 1906 | 5/17-5/31 | Jacksonville Jays | South Atlantic League | , | ||
| Thomas Taylor | 1906 | 6/11-8/18 | Orangeburg | South Carolina League | , | ||
| Thomas Taylor | 1906 | 8/22-9/8 | Lynchburg Shoemakers | Virginia League | , | ||
| George Te Linde | 1906 | 4/27-6/13 | South Bend Greens | Central League | , | ||
| George Te Linde | 1906 | 6/22-7/10 | Akron Rubbernecks | Ohio-Pennsylvania League | , | ||
| George Te Linde | 1906 | 7/18-8/17 | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| Harvey Teal | teal--003har | 1906 | +5/20-8/18+ | Tecumseh | Southern Michigan League | , | |
| Robert Teas | teas--001rob | 1906 | +5/31+ | Bowie TX | Independent | , | |
| Robert Teas | teas--001rob | 1906 | +7/3+ | Wich. Falls TX | Independent | , | |
| Al Tebeau | tebeau002al- | 1906 | Eau Claire-Chippewa Falls Orphans | Wisconsin State League | , | ||
| George Tebeau | tebeau002geo | 1906 | Louisville Colonels | American Association | , | ||
| Harvey Teel | 1906 | +5/22+ | Ottumwa Champs | Iowa League | , | ||
| Curt Templin | templi001cur | 1906 | , | ||||
| Thomas Tennant | tennan001tho | 1906 | 118 g. | Green Bay Colts | Wisconsin State League | , | |
| Terrell | 1906 | 6 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Terry | 1906 | 5/20,6/11 | Binghamton Bingoes | New York State League | , | ||
| Ralph Terry | 1906 | 5/19-7/29 | Hancock Infants | Northern-Copper Country League | , | ||
| Ralph Terry | 1906 | +8/9-9/3 | Winnipeg Maroons | Northern-Copper Country League | , | ||
| Tetlow | 1906 | 6/29 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| Ivey Tevis | tevis-001iva | 1906 | 31 g. | Galveston Sand Crabs | South Texas League | , | |
| George Textor | 1906 | 4/20-6/9 | Vicksburg Hill Billies | Cotton States League | , | ||
| George Textor | 1906 | 6/19-6/30 | Little Rock Travelers | Southern Association | , | ||
| Parry Thackara | thacka001dav | 1906 | 4/26-9/8 | Waterbury Authors | Connecticut State League | , | |
| Grant Thatcher | thatch001uly | 1906 | 5/25-6/15 | Johnstown Johnnies | Tri-State League | , | |
| Tony Thebo | thebo-001ant | 1906 | 125 g. | San Antonio Bronchos | South Texas League | , | |
| Joseph Theisen | theise001jos | 1906 | 5/12-5/23 | Umpire | Connecticut State League | , | |
| George Therre | therre001geo | 1906 | 5/10-7/10 | Wilkes-Barre Barons | New York State League | , | |
| Otto Thiel | thiel-001ott | 1906 | 4/12-9/15 | Memphis Egyptians | Southern Association | , | |
| Henry Thielman | thielm001hen | 1906 | 6/22-9/6 | Jersey City Skeeters | Eastern League | , | |
| Jake Thielman | thielm001joh | 1906 | 1 g. | St. Louis | National League | St. Louis, MO | |
| Jake Thielman | thielm001joh | 1906 | 6/12-9/16 | Indianapolis Indians | American Association | , | |
| Jack Thiery | thiery001joh | 1906 | Chic.-Logan | Chicago City League | , | ||
| Jack Thiery | thiery001joh | 1906 | 5/24- | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Thomas | thomas037--- | 1906 | 4/26-5/3 | Grand Rapids Wolverines | Central League | , | |
| Thomas | thomas037--- | 1906 | +6/3+ | Erie Sailors | Interstate League | , | |
| Thomas | thomas037--- | 1906 | +8/28-9/23+ | Battle Creek Crickets | Southern Michigan League | , | |
| Thomas | 1906 | 6/29 | South Bend Greens | Central League | , | ||
| Bert Thomas | 1906 | 58 g. | Youngstown Ohio Works | Ohio-Pennsylvania League | , | ||
| Bill Thomas | thomas007wil | 1906 | 4/30-9/29 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Dick Thomas | thomas000re- | 1906 | 6/21 | Temple Boll Weevils | Texas League | , | |
| Frosty Thomas | thomas001for | 1906 | 4/18-9/13 | Minneapolis Millers | American Association | , | |
| Frosty Thomas | thomas001for | 1906 | 9/16 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Ira Thomas | thomas001ira | 1906 | 44 g. | New York | American League | New York, NY | |
| Jack Thomas | thomas007joh | 1906 | 5/2-9/30 | Lincoln Ducklings | Western League | , | |
| James Thomas | thomas002jim | 1906 | 5/3- | Erie Sailors | Interstate League | , | |
| James Thomas | thomas002jim | 1906 | +8/28-9/18+ | Battle Creek Crickets | Southern Michigan League | , | |
| Orth Thomas | thomas001ort | 1906 | 6/12-6/15 | Galveston Sand Crabs | South Texas League | , | |
| Orth Thomas | thomas001ort | 1906 | 6/20-7/30 | Lake Charles Creoles | South Texas League | , | |
| Roy Thomas | thomas002roy | 1906 | Philadelphia | National League | Philadelphia, PA | ||
| Tom Thomas | thomas005tho | 1906 | 5/2-6/6 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Tom Thomas | 1906 | 7/20-8/29 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| William Thomas | thomas002wil | 1906 | 4/28 | Buffalo Bisons | Eastern League | , | |
| William Thomas | thomas002b-- | 1906 | 4/28-9/28 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Art Thomason | thomas003art | 1906 | Liberty MO | Independent | , | ||
| Thompson | 1906 | 6/12-7/4 | Darlington | South Carolina League | , | ||
| Charles Thompson | 1906 | 4/30-8/23 | San Antonio Bronchos | South Texas League | , | ||
| Charles Thompson | 1906 | 8/22-9/11 | Leavenworth Old Soldiers | Western Association | , | ||
| Frank Thompson | 1906 | N. Carolina State | College | , | |||
| Frank Thompson | 1906 | 6/11-8/16 | Sumter Game Cocks | South Carolina League | , | ||
| Frank Thompson | 1906 | 8/18 | Camden | South Carolina League | , | ||
| Gus Thompson | thomps007joh | 1906 | -9/21 | 17 g. | St. Louis | National League | St. Louis, MO |
| John Thompson | 1906 | 41 g. | Jackson Senators | Cotton States League | , | ||
| John Thompson | 1906 | Baton Rouge Cajuns | Cotton States League | , | |||
| Levy Thompson | 1906 | 24 g. | Jacksonville Jacks | Kentucky-Illinois-Tennessee League | , | ||
| Tommy Thompson | 1906 | Salida CO | Independent | , | |||
| Tommy Thompson | 1906 | 6/29-8/20+ | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Toot Thompson | 1906 | no g. | Minneapolis Millers | American Association | , | ||
| William Thompson | 1906 | 4/26-4/28 | Waterbury Authors | Connecticut State League | , | ||
| William Thompson | 1906 | 7/1 | New Haven Blues | Connecticut State League | , | ||
| Jack Thoney | thoney001joh | 1906 | 4/25-9/21 | Toronto Maple Leafs | Eastern League | , | |
| George Thornhill | thornh001geo | 1906 | 7/4-7/26 | Providence Grays | Eastern League | , | |
| George Thornhill | thornh001geo | 1906 | Bradford Drillers | Interstate League | , | ||
| John Thornton | thornt003joh | 1906 | 4/27-5/19 | Dayton Veterans | Central League | , | |
| Ross Thornton | thornt001ros | 1906 | , | ||||
| Woody Thornton | thornt002woo | 1906 | 4/11-4/23 | Montgomery Senators | Southern Association | , | |
| Woody Thornton | thornt002woo | 1906 | 4/27-7/4 | Mobile Sea Gulls | Cotton States League | , | |
| Woody Thornton | thornt002woo | 1906 | 7/14-9/4 | Gulfport Crabs | Cotton States League | , | |
| Elmer Thorsen | 1906 | 5/5-5/11 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Elmer Thorsen | 1906 | 6/16-7/28 | Grand Forks Forkers | Northern-Copper Country League | , | ||
| Elmer Thorsen | 1906 | 8/2-9/14 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Loris Thrailkill | 1906 | 5/3-9/9 | Chanute Browns | Kansas State League | , | ||
| Pat Tibald | tibald001pet | 1906 | 4/19-4/25 | Atlanta Crackers | Southern Association | , | |
| Pat Tibald | tibald001pet | 1906 | 4/28-8/18 | Charleston Sea Gulls | South Atlantic League | , | |
| Tibbetts | 1906 | 7/13 | Binghamton Bingoes | New York State League | , | ||
| James Tibbetts | tibbet002jam | 1906 | 4/30-6/30 | New Castle Outlaws | Ohio-Pennsylvania League | , | |
| James Tibbetts | tibbet002jam | 1906 | 7/2 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| James Tibbetts | tibbet002jam | 1906 | 7/23-7/25 | Lancaster Red Roses | Tri-State League | , | |
| James Tibbetts | tibbet002jam | 1906 | 7/28-7/30 | Johnstown Johnnies | Tri-State League | , | |
| James Tibbetts | tibbet002jam | 1906 | 8/22-9/4 | Nashville Volunteers | Southern Association | , | |
| George Tieman | tieman001geo | 1906 | 4/28-9/23 | South Bend Greens | Central League | , | |
| Eddie Tiemeyer | tiemey001edw | 1906 | Cinc.-Avondales | Independent | , | ||
| Eddie Tiemeyer | tiemey001edw | 1906 | 8/19- | 5 g. | Cincinnati | National League | Cincinnati, OH |
| Tiernan | 1906 | Temple Boll Weevils | Texas League | , | |||
| Bill Tierney | 1906 | Xavier Univ. | College | , | |||
| Mark Tierney | tierne001edw | 1906 | no g. | Lowell Tigers | New England League | , | |
| James Tierno | 1906 | JC-Chatham | Independent | , | |||
| Gordon Tiffany | 1906 | Oneonta | , | ||||
| Ray Tift | tift--001ray | 1906 | +7/10-8/8+ | Burlington | Northern Independent League | , | |
| Ray Tift | tift--001ray | 1906 | Auburn | Empire State League | , | ||
| Ray Tift | tift--001ray | 1906 | Rockville CT | Independent | , | ||
| Jack Tighe | tighe-001joh | 1906 | 5/24-8/10 | Norwich Reds | Connecticut State League | , | |
| William Tiley | 1906 | Runnells IA | Independent | , | |||
| Jimmy Tilford | tilfor001jam | 1906 | 77 g. | Jackson Senators | Cotton States League | , | |
| Oscar Tinkham | 1906 | 8/24-8/28 | New Bedford Whalers | New England League | , | ||
| Tison | 1906 | Americus Pallbearers | Georgia State League | , | |||
| Guy Titman | 1906 | 106 g. | Richmond Colts | Virginia League | , | ||
| Guy Titman | 1906 | Portsmouth Truckers | Virginia League | , | |||
| E. H. Todd | todd--001o-- | 1906 | +6/28-8/10+ | Conneaut OH | Independent | , | |
| E. H. Todd | todd--001o-- | 1906 | 9/24 | Springfield Babes | Central League | , | |
| Jack Toft | toft--001jam | 1906 | 4/26-7/11 | Toronto Maple Leafs | Eastern League | , | |
| Jimmy Toman | toman-001jam | 1906 | 162 g. | Los Angeles Angels | Pacific Coast League | , | |
| John Tomlin | 1906 | 52 g. | Houston Buffaloes | South Texas League | , | ||
| Thomas Toner | toner-001tho | 1906 | 118 g. | Vicksburg Hill Billies | Cotton States League | , | |
| Thomas Toner | toner-001tho | 1906 | Denv.-I. Rudes | Amateur | , | ||
| Doc Tonkin | tonkin001har | 1906 | Newark Sailors | Eastern League | , | ||
| Doc Tonkin | tonkin001har | 1906 | Parkersburg WV | , | |||
| Charles Tonneman | 1906 | 5/13 | Omah.-Lee-Glass | Independent | , | ||
| Charles Tonneman | 1906 | Freemont NEB | Independent | , | |||
| Charles Tonneman | 1906 | 8/4-9/30 | Pueblo Indians | Western League | , | ||
| Thomas Tonneson | 1906 | 4/29-9/3 | Grays Harbor Lumbermen | Northwestern League | , | ||
| Albert Tooley | 1906 | Fort Wayne | Interstate Association | , | |||
| Albert Tooley | 1906 | Sharon Steels | Ohio-Pennsylvania League | , | |||
| William Toomey | 1906 | Newburgh Hill Climbers | Hudson River League | , | |||
| Raymond Topham | 1906 | 4/28 | Portsmouth Truckers | Virginia League | , | ||
| Roy Toren | toren-002roy | 1906 | 7 g. | Portland Beavers | Pacific Coast League | , | |
| Roy Toren | toren-002roy | 1906 | 5/31-9/2 | Butte Miners | Northwestern League | , | |
| John Torpey | 1906 | +4/19+ | Villanova College | College | , | ||
| John Torpey | 1906 | Louisville NJ | Independent | , | |||
| Will Torrence | torren002wil | 1906 | 4/26-4/29 | Evansville River Rats | Central League | , | |
| Will Torrence | torren002wil | 1906 | Fort Wayne | Interstate Association | , | ||
| Will Torrence | torren002wil | 1906 | 6/6-6/8 | Dayton Veterans | Central League | , | |
| Will Torrence | torren002wil | 1906 | Boone/Clinton Miners | Iowa League | , | ||
| William Torrence | torren002wil | 1906 | 9/4 | Webb City Goldbugs | Western Association | , | |
| Lucien Torrey | 1906 | Illinois-Indiana-Iowa League | , | ||||
| Lucien Torrey | 1906 | 8/21 | Leavenworth Old Soldiers | Western Association | , | ||
| Clarence Totman | totman001cla | 1906 | 4/26-8/4 | Lynchburg Shoemakers | Virginia League | , | |
| Theodore Touchstone | 1906 | +5/8+ | Phil.-Central HS | School | , | ||
| Theodore Touchstone | 1906 | +7/14+ | Ridley Park PA | Independent | , | ||
| Joseph Touhey | toohey001jos | 1906 | Hornellsville NY | Independent | , | ||
| Babe Towne | towne-001jay | 1906 | 5/2-7/30 | Des Moines Champs | Western League | , | |
| Babe Towne | towne-001jay | 1906 | 8/1-10/6 | Chicago | American League | Chicago, IL | |
| Guy Townsend | townse001guy | 1906 | no g. | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Guy Townsend | townse001guy | 1906 | 9/25-9/30 | Omaha Rourkes | Western League | , | |
| Happy Townsend | townse001joh | 1906 | -9/21 | 17 g. | Cleveland | American League | Cleveland, OH |
| Bill Tozer | tozer-001wil | 1906 | 6/22-9/18 | Buffalo Bisons | Eastern League | , | |
| Grover Tracey | tracey001gro | 1906 | +7/25-9/3 | Duluth White Sox | Northern-Copper Country League | , | |
| James Trainor | traino001jam | 1906 | 5/11-9/23 | Scranton Miners | New York State League | , | |
| Thomas Travers | 1906 | Tren.-Wilburs | Independent | , | |||
| Wix Treadway | treadw001win | 1906 | 5/19-9/3 | Duluth White Sox | Northern-Copper Country League | , | |
| Parker Treat | treat-001par | 1906 | 4/28-9/5 | Waterbury Authors | Connecticut State League | , | |
| Walter Trevillian | 1906 | 8/21-8/22 | Roanoke Tigers | Virginia League | , | ||
| Walter Trevillian | 1906 | +9/6+ | Rich.-Times-Disp | Independent | , | ||
| Benjamin Tribble | 1906 | 5/3-7/7 | Waycross Machinists | Georgia State League | , | ||
| Benjamin Tribble | 1906 | 7/25-8/19 | Montgomery Senators | Southern Association | , | ||
| Triplett | 1906 | 7/19-7/29 | Spokane Indians | Northwestern League | , | ||
| Jess Troeh | 1906 | 44 g. | Wausau Lumberjacks | Wisconsin State League | , | ||
| Walter Trombley | 1906 | +6/2-8/22+ | Mount Clemens Bathers | Southern Michigan League | , | ||
| Albert Troup | 1906 | Bradford Drillers | Interstate League | , | |||
| Albert Troup | 1906 | Buff.-Black Rocks | Independent | , | |||
| Roy Troutman | 1906 | +4/30-5/3+ | South Bend Greens | Central League | , | ||
| Roy Troutman | 1906 | 18 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | ||
| Thad Troy | troy--001tha | 1906 | 5/24-7/4+ | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Thad Troy | troy--001tha | 1906 | Oil City-Jamestown Oseejays | Interstate League | , | ||
| Harry Truby | truby-002har | 1906 | Lima | Interstate Association | , | ||
| Frank Truesdale | truesd001fra | 1906 | 124 g. | Houston Buffaloes | South Texas League | , | |
| Tucker | 1906 | 6/15-6/21 | Georgetown | South Carolina League | , | ||
| Dave Tucker | tucker001dav | 1906 | 5/19-5/28+ | Winnipeg Maroons | Northern-Copper Country League | , | |
| Dave Tucker | tucker001dav | 1906 | +6/7-7/28 | Grand Forks Forkers | Northern-Copper Country League | , | |
| Dave Tucker | tucker001dav | 1906 | 35 g. | La Crosse Pinks | Wisconsin State League | , | |
| Fred Tucker | tucker001f-- | 1906 | Canton Chinamen | Central League | , | ||
| Fred Tucker | tucker001f-- | 1906 | Poughkeepsie Colts | Hudson River League | , | ||
| Tom Tuckey | tuckey002tho | 1906 | 4/27-8/18 | New Haven Blues | Connecticut State League | , | |
| Tom Tuckey | tuckey002tho | 1906 | 8/25-9/8 | Norwich Reds | Connecticut State League | , | |
| Tullar | tullar000--- | 1906 | 5/4-5/21+ | Fort Smith Razorbacks | South Central League | , | |
| Tullar | tullar000--- | 1906 | 6/5-7/14+ | Shawnee Blues | South Central League | , | |
| C. Turner | 1906 | , | |||||
| Cleve Turner | 1906 | Camden Ouachitas | Arkansas-Texas League | , | |||
| Thomas Turner | 1906 | 6/24-7/29 | Umpire | Northwestern League | , | ||
| Vincent Turner | turner001vin | 1906 | 4/16-9/1 | Charleston Sea Gulls | South Atlantic League | , | |
| Harvey Tustin | 1906 | 6/4-6/15 | Washington | Pennsylvania-Ohio-Maryland League | , | ||
| Harvey Tustin | 1906 | 6/25 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| Tuttle | 1906 | +9/1+ | Manchester Textiles | New England League | , | ||
| Tuttle | 1906 | 5/5 | Vicksburg Hill Billies | Cotton States League | , | ||
| Twitchell | 1906 | 5/3-6/14 | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Twitchell | 1906 | 6/15-8/23+ | Iola Grays/Cherryvale Boosters | Kansas State League | , | ||
| Vincent Tydeman | 1906 | 4/25 | Savannah Indians | South Atlantic League | , | ||
| Vincent Tydeman | 1906 | 5/3-7/4 | Valdosta Stars | Georgia State League | , | ||
| Vincent Tydeman | 1906 | 7/9-8/1 | Orangeburg | South Carolina League | , | ||
| Raymond Tyler | tyler-002ray | 1906 | Olean Refiners | Interstate League | , | ||
| Joseph Tyrrell | 1906 | 7/26 | Lowell Tigers | New England League | , | ||
| Fred Uhl | uhl---003--- | 1906 | Indi-Dueesseldorfers | Independent | , | ||
| Charles Ullman | 1906 | Seneca Falls | Empire State League | , | |||
| Fred Ulrich | ulrich001fre | 1906 | 4/28-9/28 | Sharon Steels | Ohio-Pennsylvania League | , | |
| Umstead | 1906 | Cornell Univ | College | , | |||
| Umstead | 1906 | +7/10-7/19 | Plattsburgh | Northern Independent League | , | ||
| Bob Unglaub | unglau002rob | 1906 | 4/25-9/15 | Williamsport Millionaires | Tri-State League | , | |
| Tommy Uniac | uniac-001tho | 1906 | Norwich Univ. | College | , | ||
| Tommy Uniac | uniac-001tho | 1906 | Montpelier-Barre | Northern Independent | , | ||
| Tommy Uniac | uniac-001tho | 1906 | 8/29-9/6 | Lynn Shoemakers | New England League | , | |
| George Unkle | unkle-000geo | 1906 | 4/28-4/30 | Mansfield Giants | Ohio-Pennsylvania League | , | |
| Armour Unrue | 1906 | Scottdale PA | Independent | , | |||
| Armour Unrue | 1906 | 7/30-9/15 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | ||
| George Upp | upp---001geo | 1906 | no g. | Johnstown Johnnies | Tri-State League | , | |
| George Upp | upp---001geo | 1906 | 4/29-9/16 | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Roy Urbach | 1906 | 5/1-5/10 | Lowell Tigers | New England League | , | ||
| Roy Urbach | 1906 | 5/23 | Albany Senators | New York State League | , | ||
| Roy Urbach | 1906 | +8/13+ | Olean Refiners | Interstate League | , | ||
| Urich | 1906 | 5/8-5/18 | Roanoke Tigers | Virginia League | , | ||
| Urich | 1906 | 7/18 | Richmond Colts | Virginia League | , | ||
| Lon Ury | ury---001lou | 1906 | 4/25-5/9 | Dallas Giants | Texas League | , | |
| Lon Ury | ury---001lou | 1906 | 5/10-5/18 | Birmingham Barons | Southern Association | , | |
| Lon Ury | ury---001lou | 1906 | 6/2-9/3 | Dallas Giants | Texas League | , | |
| Jerome Utley | utley-001jer | 1906 | 4/14 | Atlanta Crackers | Southern Association | , | |
| Jerome Utley | utley-001jer | 1906 | 5/11 | New Orleans Pelicans | Southern Association | , | |
| Jerome Utley | utley-001jer | 1906 | 5/18-6/9 | Charleston Sea Gulls | South Atlantic League | , | |
| Jerome Utley | utley-001jer | 1906 | 6/26-7/6 | Memphis Egyptians | Southern Association | , | |
| Jerome Utley | utley-001jer | 1906 | +7/19-8/11+ | Houghton Giants | Northern-Copper Country League | , | |
| Harry Vahrenhorst | vahren001har | 1906 | no g. | Shreveport Pirates | Southern Association | , | |
| Bob Vail | vail--001rob | 1906 | 4/30-8/21 | Lynn Shoemakers | New England League | , | |
| Fred Valdois | valdoi001fre | 1906 | 4/28-9/8 | New Bedford Whalers | New England League | , | |
| Bradley Valliere | 1906 | 19 ab | Lake Linden Sandy Cities | Northern-Copper Country League | , | ||
| Edward Van Anda | vanand002edw | 1906 | 4/26-9/22 | Grand Rapids Wolverines | Central League | , | |
| Deacon Van Buren | vanbur001edw | 1906 | 136 g. | Seattle Siwashes | Pacific Coast League | , | |
| Dow Van Dine | vandin001dow | 1906 | +5/16-8/11+ | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Van Sickle | 1906 | 9/9-9/30 | Umpire | Western League | , | ||
| Sam Van Sickle | 1906 | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |||
| Sam Van Sickle | 1906 | 6/22- | Lebanon IN | Independent | , | ||
| Ike Van Zandt | vanzan001cha | 1906 | 4/18-9/17 | St. Paul Saints | American Association | , | |
| Vance | 1906 | Peoria Distillers | Illinois-Indiana-Iowa League | , | |||
| Neal Vance | vance-001nea | 1906 | 4/25-6/30 | Temple Boll Weevils | Texas League | , | |
| Neal Vance | vance-001nea | 1906 | +8/19+ | Camden Ouachitas | Arkansas-Texas League | , | |
| Neal Vance | vance-001nea | 1906 | 9/1 | Little Rock Travelers | Southern Association | , | |
| George Vandegrift | vandeg001geo | 1906 | 4/26-9/23 | Jersey City Skeeters | Eastern League | , | |
| Clyde Vanderbeck | 1906 | Ft. Leavenworth | Army | , | |||
| Clyde Vanderbeck | 1906 | 8/21 | Leavenworth Old Soldiers | Western Association | , | ||
| Anthony Vanderhill | vander001ant | 1906 | 5/4-9/23 | Joplin Miners | Western Association | , | |
| Albert Varco | 1906 | U. of Minnesota | College | , | |||
| Albert Varco | 1906 | 5/19-9/3 | Winnipeg Maroons | Northern-Copper Country League | , | ||
| Joseph Varner | varner001j-- | 1906 | 5/25-9/15 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| Cal Vasbinder | vasbin001mos | 1906 | 5/24-6/25 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Cal Vasbinder | vasbin001mos | 1906 | 7/11-8/13 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | |
| Cal Vasbinder | vasbin001mos | 1906 | 7/13 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Cal Vasbinder | vasbin001mos | 1906 | 8/28-9/1 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Cal Vasbinder | vasbin001mos | 1906 | 9/10-9/15 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Vaughn | 1906 | +7/15+ | Newburgh Hill Climbers | Hudson River League | , | ||
| Farmer Vaughn | vaughn001far | 1906 | 4/25-6/24 | Birmingham Barons | Southern Association | , | |
| Hippo Vaughn | vaughn002jam | 1906 | Temple Boll Weevils | Texas League | , | ||
| Merrill Vaughn | vaughn001mer | 1906 | 6/18-9/23 | Leavenworth Old Soldiers | Western Association | , | |
| Bucky Veil | veil--001fre | 1906 | 4/22-9/15 | Columbus Senators | American Association | , | |
| William Veley | 1906 | Spokane City League | , | ||||
| Charles Venable | venabl001cha | 1906 | 4/27-9/12+ | Wheeling Stogies | Central League | , | |
| Frank Venning | vinnin001f-- | 1906 | 5/24-6/2 | Braddock Infants | Pennsylvania-Ohio-Maryland League | , | |
| Frank Venning | vinnin001f-- | 1906 | Belle-Vernon | Independent | , | ||
| Perry Verga | verga-001geo | 1906 | 5/24-7/6 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Lee Vernuelle | vernue001rob | 1906 | 56 g. | Mobile Sea Gulls | Cotton States League | , | |
| Lee Viau | viau--001lee | 1906 | 5/20-9/9 | Binghamton Bingoes | New York State League | , | |
| Rube Vickers | vicker001har | 1906 | 76 g. | Seattle Siwashes | Pacific Coast League | , | |
| William Viebahn | 1906 | Punxsutawney Policemen | Interstate League | , | |||
| William Viebahn | 1906 | 6/5 | Lancaster Red Roses | Tri-State League | , | ||
| Case Vigil | 1906 | 9/13-9/30 | Pueblo Indians | Western League | , | ||
| George Villeman | villem001geo | 1906 | 5/11-8/25 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Rube Vinson | vinson001ern | 1906 | -5/7 | 10 g. | Chicago | American League | Chicago, IL |
| Rube Vinson | vinson001ern | 1906 | 6/2-6/25 | Indianapolis Indians | American Association | , | |
| Rube Vinson | vinson001ern | 1906 | 13 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Theodore Vinson | vinson001the | 1906 | 103 g. | Lake Charles Creoles | South Texas League | , | |
| Juan Viola | 1906 | 4/16-5/26 | Jacksonville Jays | South Atlantic League | , | ||
| Juan Viola | 1906 | Habana | Cuban Winter League | , | |||
| Juan Viola | 1906 | 7/11-9/3 | Jacksonville Jays | South Atlantic League | , | ||
| Vitter | 1906 | +5/9+ | Biloxi MS | Independent | , | ||
| Vitter | 1906 | 3 g. | Gulfport Crabs | Cotton States League | , | ||
| James Vizard | vizard001jam | 1906 | +7/9-7/24+ | Mount Clemens Bathers | Southern Michigan League | , | |
| A. Vogel | 1906 | 7/12- | 22 g. | San Antonio Bronchos | South Texas League | , | |
| Otto Vogel | 1906 | 5/3-9/16 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Adam Vogt | 1906 | 103 g. | La Crosse Pinks | Wisconsin State League | , | ||
| Adam Voigt | voigt-001ada | 1906 | 103 g. | La Crosse Pinks | Wisconsin State League | , | |
| George Volk | volk--001geo | 1906 | +5/11-6/14+ | Anderson | Interstate Association | , | |
| George Volk | volk--001geo | 1906 | +7/20-7/31+ | South Bend Greens | Central League | , | |
| George Volk | volk--001geo | 1906 | 45 g. | Saginaw | Southern Michigan League | , | |
| Jim Vollendorf | vollen001ado | 1906 | 6/4-7/16 | Pueblo Indians | Western League | , | |
| Jake Volz | volz--001jac | 1906 | 4/26-9/8 | Holyoke Paperweights | Connecticut State League | , | |
| Vonderhorst | 1906 | 4/25-4/27 | Little Rock Travelers | Southern Association | , | ||
| Cy Vorhees | vorhee001hen | 1906 | 4/27-8/15 | Waterbury Authors | Connecticut State League | , | |
| Bobby Vorpagel | vorpag001rob | 1906 | 5/19-9/3 | Calumet Aristocrats | Northern-Copper Country League | , | |
| Bobby Vorpagel | vorpag001rob | 1906 | +9/16+ | Battle Creek Crickets | Southern Michigan League | , | |
| H. L. Voss | 1906 | 5/19-9/2 | Winnipeg Maroons | Northern-Copper Country League | , | ||
| Rip Vowinkel | vowink001joh | 1906 | 8 g. | Buffalo Bisons | Eastern League | , | |
| Jimmy Wacker | wacker001cha | 1906 | 4/27-9/25 | Evansville River Rats | Central League | , | |
| Wade | 1906 | 5/14-5/22 | Roanoke Tigers | Virginia League | , | ||
| Ernie Wade | wade--002ern | 1906 | 5/24-6/2 | Hartford Senators | Connecticut State League | , | |
| Ham Wade | wade--001abr | 1906 | 5/12-9/7 | New Haven Blues | Connecticut State League | , | |
| Elmer Wager | 1906 | Allegheny HS | High School | , | |||
| Elmer Wager | 1906 | Pitt.-Collegians | Independent | , | |||
| Wagner | 1906 | 5/19-5/26+ | Houghton Giants | Northern-Copper Country League | , | ||
| Wagner | 1906 | 9 g. | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| Wagner | 1906 | Akron Rubbernecks | Ohio-Pennsylvania League | , | |||
| Butts Wagner | wagner001but | 1906 | 4/26-8/29 | Montreal Royals | Eastern League | , | |
| Charles Wagner | 1906 | 5/17-9/5+ | Tecumseh | Southern Michigan League | , | ||
| Ed Wagner | 1906 | , | |||||
| Heinie Wagner | wagner001cha | 1906 | 5/2-5/30 | Waterbury Authors | Connecticut State League | , | |
| Heinie Wagner | wagner001cha | 1906 | 5/31-9/21 | Newark Sailors | Eastern League | , | |
| Heinie Wagner | wagner001cha | 1906 | 9 g. | Boston | American League | Boston, MA | |
| Ivor Wagner | wagner001ivo | 1906 | 5/12-9/23 | Binghamton Bingoes | New York State League | , | |
| J. B. Wagner | 1906 | 7/18-7/20 | Sioux City Packers | Western League | , | ||
| Johnny Wagner | 1906 | 4/28-5/4 | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| Johnny Wagner | 1906 | 5/14 | Akron Rubbernecks | Ohio-Pennsylvania League | , | ||
| Johnny Wagner | 1906 | 5/27 | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Louis Wagner | wagner001l-- | 1906 | 5/4-5/31 | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Louis Wagner | wagner001l-- | 1906 | 6/15-6/26 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Louis Wagner | wagner001l-- | 1906 | 37 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| Otto Wagner | wagner001ott | 1906 | 113 g. | Mobile Sea Gulls | Cotton States League | , | |
| John Wagnon | 1906 | +5/28-7/6 | Waycross Machinists | Georgia State League | , | ||
| John Wagnon | 1906 | 7/7-9/3 | Jacksonville Jays | South Atlantic League | , | ||
| Indian Wahoo | 1906-07 | , | |||||
| Chet Waite | 1906 | Stafford CT | Independent | , | |||
| Chet Waite | 1906 | Rockville CT | Independent | , | |||
| Howard Wakefield | wakefi001how | 1906 | Washington | American League | Washington, DC | ||
| Irv Waldron | waldro001irv | 1906 | 5/13-9/13 | Kansas City Blues | American Association | , | |
| Irv Waldron | waldro001irv | 1906 | 11 g. | San Francisco Seals | Pacific Coast League | , | |
| Walker | 1906 | 7/24-8/4 | Manchester Textiles | New England League | , | ||
| Walker | 1906 | 6/13 | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| Ed Walker | walker001edw | 1906 | 4/19-9/3 | Jacksonville Jays | South Atlantic League | , | |
| Fielder Walker | 1906 | 6/13 | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| Lee Walker | walker002lee | 1906 | +6/18-7/16+ | Kalamazoo White Sox | Southern Michigan League | , | |
| Mysterious Walker | walker004fre | 1906 | +4/25-5/27+ | Univ. of Chicago | College | , | |
| Mysterious Walker | walker004fre | 1906 | ME-Indep | Independent | , | ||
| Mysterious Walker | walker004fre | 1906 | 8/23-9/8 | Bridgeport Orators | Connecticut State League | , | |
| Otto Walker | 1906 | Mobile Sea Gulls | Cotton States League | , | |||
| Roscoe Walker | 1906 | U. of Oklahoma | College | , | |||
| Roscoe Walker | 1906 | 6/11-6/17 | Pittsburg/Vinita Champs | Kansas State League | , | ||
| Roscoe Walker | 1906 | 6/19-9/9 | Coffeyville Bricks | Kansas State League | , | ||
| Scott Walker | 1906 | 125 g. | Waterloo Microbes | Iowa League | , | ||
| Tom Walker | walker006tho | 1906 | no g. | Columbus Senators | American Association | , | |
| Tom Walker | walker006tho | 1906 | 5/29-6/26 | Indianapolis Indians | American Association | , | |
| Tom Walker | walker006tho | 1906 | 7/3-9/13 | Williamsport Millionaires | Tri-State League | , | |
| Wall | 1906 | 5/1-5/8 | Lynchburg Shoemakers | Virginia League | , | ||
| George Wall | 1906 | Geneva | Empire State League | , | |||
| James Wall | 1906 | 6/25-9/7 | Worcester Busters | New England League | , | ||
| Joe Wall | wall--005jos | 1906 | 5/24-5/30 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Joe Wall | wall--005jos | 1906 | 7/7-7/12 | Hartford Senators | Connecticut State League | , | |
| Joe Wall | wall--005jos | 1906 | Newburgh Hill Climbers | Hudson River League | , | ||
| Arthur Wallace | wallac001art | 1906 | 3/25-4/22 | Biloxi MS | Independent | , | |
| Arthur Wallace | wallac001art | 1906 | 4/23-5/11 | Gulfport Crabs | Cotton States League | , | |
| Arthur Wallace | wallac001art | 1906 | +5/13-5/27 | Biloxi MS | Independent | , | |
| Arthur Wallace | wallac001art | 1906 | +6/3-6/30 | Temple Boll Weevils | Texas League | , | |
| Arthur Wallace | wallac001art | 1906 | +7/4-9/3 | Waco Navigators | Texas League | , | |
| Jim Wallace | wallac005jam | 1906 | 4/26-7/14 | Rochester Bronchos | Eastern League | , | |
| Jim Wallace | wallac005jam | 1906 | 7/25-9/20 | Toronto Maple Leafs | Eastern League | , | |
| Robert Wallace | wallac001rob | 1906 | 4/16-7/13 | Columbia Gamecocks | South Atlantic League | , | |
| Robert Wallace | wallac001rob | 1906 | 6/29-6/30 | Sumter Game Cocks | South Carolina League | , | |
| Robert Wallace | wallac001rob | 1906 | 7/16-8/16 | Atlanta Crackers | Southern Association | , | |
| Robert Wallace | wallac001rob | 1906 | 9/6-9/15 | Atlanta Crackers | Southern Association | , | |
| William Wallace | 1906 | 5/19-5/ | Winnipeg Maroons | Northern-Copper Country League | , | ||
| William Wallace | 1906 | 4/28 | Waterbury Authors | Connecticut State League | , | ||
| William Wallace | 1906 | 6/30-7/7 | Waterbury Authors | Connecticut State League | , | ||
| Red Waller | waller001joh | 1906 | 4/28-6/23 | Bridgeport Orators | Connecticut State League | , | |
| Walls | 1906 | 52 g. | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | ||
| Walsh | 1906 | 7/26-8/14 | Lancaster Red Roses | Tri-State League | , | ||
| Walsh | 1906 | 7 g. | Green Bay Colts | Wisconsin State League | , | ||
| Walsh | 1906 | 9/16 | Terre Haute Hottentots | Central League | , | ||
| Connie Walsh | walsh-001cor | 1906 | 5/5-8/25 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| H. A. Walsh | 1906 | Binghamton Bingoes | New York State League | , | |||
| James Walsh | 1906 | 6/20-9/8 | Waterbury Authors | Connecticut State League | , | ||
| James Walsh | 1906 | Fulton | Empire State League | , | |||
| Joe Walsh | 1906 | +5/22-5/28+ | Kalamazoo White Sox | Southern Michigan League | , | ||
| John Walsh | walsh-006joh | 1906 | 8/3-8/17 | Waterbury Authors | Connecticut State League | , | |
| John Walsh | 1906 | 5/15-9/23 | Kalamazoo White Sox | Southern Michigan League | , | ||
| Joseph Walsh | walsh-007jos | 1906 | 4/26-8/23 | Lynchburg Shoemakers | Virginia League | , | |
| Joseph Walsh | walsh-007jos | 1906 | 8/31-9/7 | Danville Red Sox | Virginia League | , | |
| Joseph Walsh | walsh-007jos | 1906 | 9/13-9/16 | Utica Pent-Ups | New York State League | , | |
| Leo Walsh | walsh-001leo | 1906 | 4/25-7/8 | Fort Worth Panthers | Texas League | , | |
| Leo Walsh | walsh-001leo | 1906 | 7/12-9/14 | Montgomery Senators | Southern Association | , | |
| Martin Walsh | 1906 | no g. | Newark Sailors | Eastern League | , | ||
| Martin Walsh | 1906 | 5/4-5/29 | Hartford Senators | Connecticut State League | , | ||
| Martin Walsh | 1906 | 9/21 | Binghamton Bingoes | New York State League | , | ||
| Matthew Walsh | 1906 | Stonington CT | Independent | , | |||
| Matthew Walsh | 1906 | New Haven Blues | Connecticut State League | , | |||
| Pete Walsh | walsh-001pet | 1906 | 5/4-7/4 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | |
| Walters | 1906 | 5/19-5/28+ | Fargo | Northern-Copper Country League | , | ||
| Walters | 1906 | 8/29-9/1 | Haverhill Hustlers | New England League | , | ||
| Amos Walters | 1906 | Fulton | Empire State League | , | |||
| Amos Walters | 1906 | 6/- | Auburn | Empire State League | , | ||
| Daniel Walters | walter003d-- | 1906 | 5/11-9/20 | Rochester Bronchos | Eastern League | , | |
| Henry Walters | walter001hen | 1906 | 74 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Henry Walters | walter001hen | 1906 | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| Jack Walters | walter001joh | 1906 | San Francisco Orphans | California League | , | ||
| Jack Walters | walter001joh | 1906 | Seattle Siwashes | Pacific Coast League | , | ||
| Lew Walters | walter001lew | 1906 | 4/11-9/15 | Birmingham Barons | Southern Association | , | |
| Peck Walters | 1906 | 5/3-6/28+ | Valdosta Stars | Georgia State League | , | ||
| Roxey Walters | walter001lou | 1906 | +5/8-7/18+ | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Roxey Walters | walter001lou | 1906 | +7/30-9/4+ | Davenport Knickerbockers | Illinois-Indiana-Iowa League | , | |
| Sid Wandell | 1906 | +7/4-7/27+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Jack Wanner | wanner001cla | 1906 | +5/16-8/11+ | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Jack Wanner | wanner001cla | 1906 | 26 g. | Portland Beavers | Pacific Coast League | , | |
| Indian War Eagle | 1906 | Carlisle | College | , | |||
| Ward | 1906 | +7/10+ | Burlington | Northern Independent League | , | ||
| Frank Ward | 1906 | Glens Falls-Saratoga Springs | Hudson River League | , | |||
| James Ward | 1906 | 5/2-9/8 | New London Whalers | Connecticut State League | , | ||
| Joe Ward | ward--001jos | 1906 | 4/24- | 35 g. | Philadelphia | National League | Philadelphia, PA |
| Joe Ward | ward--001jos | 1906 | 7/4-7/10 | Lancaster Red Roses | Tri-State League | , | |
| Joe Ward | ward--001jos | 1906 | 7/12-9/15 | Altoona Mountaineers | Tri-State League | , | |
| Rube Ward | ward--003joh | 1906 | 4/28-5/27 | Tacoma Tigers | Northwestern League | , | |
| Jack Wardman | 1906 | Ellwood City PA | Independent | , | |||
| Jack Wardman | 1906 | 8/29-9/4 | New Castle Outlaws | Ohio-Pennsylvania League | , | ||
| Clyde Wares | wares-001cly | 1906 | 5/19-7/29 | Hancock Infants | Northern-Copper Country League | , | |
| Clyde Wares | wares-001cly | 1906 | +8/9-9/3 | Houghton Giants | Northern-Copper Country League | , | |
| Clyde Wares | wares-001cly | 1906 | 9/9-9/15 | Columbus Senators | American Association | , | |
| Clyde Wares | wares-001cly | 1906 | 9/23 | Kalamazoo White Sox | Southern Michigan League | , | |
| Jack Warhop | warhop001joh | 1906 | 60 g. | Freeport Pretzels | Wisconsin State League | , | |
| Earl Warner | warner002ear | 1906 | 14 g. | Green Bay Colts | Wisconsin State League | , | |
| F. Warner | 1906 | 5/5-5/16 | Coffeyville Bricks | Kansas State League | , | ||
| Homer Warner | warner001hom | 1906 | 4/28-9/25 | Grand Rapids Wolverines | Central League | , | |
| Jack Warner | warner002joh | 1906 | 50 g. | Detroit | American League | Detroit, MI | |
| Jack Warner | warner002joh | 1906 | 32 g. | Washington | American League | Washington, DC | |
| James Warner | 1906 | Oshkosh Indians | Wisconsin State League | , | |||
| Wherry Warner | 1906 | +7/10-7/25+ | Montpelier-Barre | Northern Independent | , | ||
| Warren | 1906 | 6/11-7/6 | Georgetown | South Carolina League | , | ||
| Wally Warren | warren002wal | 1906 | 4/28-6/21 | Lowell Tigers | New England League | , | |
| Wally Warren | warren002wal | 1906 | 8/6-9/8 | Holyoke Paperweights | Connecticut State League | , | |
| Mum Warrender | warren002fra | 1906 | 4/26-9/23 | Terre Haute Hottentots | Central League | , | |
| Libe Washburn | washbu001lib | 1906 | +7/2-7/19 | Plattsburgh | Northern Independent League | , | |
| Buck Washer | washer001wil | 1906 | 4/20 | Savannah Indians | South Atlantic League | , | |
| Buck Washer | washer001wil | 1906 | 5/18-5/20 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Buck Washer | washer001wil | 1906 | Gloucester NJ | Independent | , | ||
| Buck Washer | washer001wil | 1906 | 7/27- | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| William Waterman | waterm001wil | 1906 | 4/27-9/8 | Haverhill Hustlers | New England League | , | |
| Clyde Waters | 1906 | Williams College | College | , | |||
| Martin Waters | waters001mar | 1906 | 5/7-9/8 | Fall River Indians | New England League | , | |
| Bill Watkins | watkin002bil | 1906 | 4/18-5/? | Indianapolis Indians | American Association | , | |
| Watson | 1906 | 7/4 | Georgetown | South Carolina League | , | ||
| Watson | 1906 | 6 ab | South Bend Greens | Central League | , | ||
| Arthur Watson | 1906 | 4/26-6/29 | Evansville River Rats | Central League | , | ||
| Arthur Watson | 1906 | 7/1-9/23 | South Bend Greens | Central League | , | ||
| Julius Watson | watson001jul | 1906 | 5/6 | Norfolk Tars | Virginia League | , | |
| Julius Watson | watson001jul | 1906 | 5/8-5/12 | Danville Red Sox | Virginia League | , | |
| Julius Watson | watson001jul | 1906 | 5/14-8/31 | Roanoke Tigers | Virginia League | , | |
| Roscoe Watson | watson001ros | 1906 | 41 g. | Galveston Sand Crabs | South Texas League | , | |
| Scott Watson | 1906 | -8/25 | Ottawa | Northern Independent League | , | ||
| Scott Watson | 1906 | 8/27-9/23 | South Bend Greens | Central League | , | ||
| George Watt | watt--001geo | 1906 | 4/12-7/15 | Little Rock Travelers | Southern Association | , | |
| George Watt | watt--001geo | 1906 | 7/22-9/15 | New Orleans Pelicans | Southern Association | , | |
| Adolph Wattrick | wattri001e-- | 1906 | +5/11-6/14+ | Saginaw | Interstate Association | , | |
| Adolph Wattrick | wattri001e-- | 1906 | +7/27+ | 33 g. | Battle Creek Crickets | Southern Michigan League | , |
| Al Watts | watts-001al- | 1906 | 5/3-5/11+ | Fort Wayne | Interstate Association | , | |
| Al Watts | watts-001al- | 1906 | Hartford City IN | Independent | , | ||
| Al Watts | watts-001al- | 1906 | 7/1-7/9 | Evansville River Rats | Central League | , | |
| Oscar Way | way---001osc | 1906 | 63 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | |
| Henry Weakley | weakle001hen | 1906 | 5/3-7/4 | Valdosta Stars | Georgia State League | , | |
| Henry Weakley | weakle001hen | 1906 | Madison FL | Independent | , | ||
| Joseph Weaner | 1906 | 5/2 | Lynchburg Shoemakers | Virginia League | , | ||
| A. E. Weatherly | weathe001a-- | 1906 | preseason | Charleston Sea Gulls | South Atlantic League | , | |
| A. E. Weatherly | weathe001a-- | 1906 | 5/22-6/4 | Portsmouth Truckers | Virginia League | , | |
| A. E. Weatherly | weathe001a-- | 1906 | 6/11-8/18 | Camden | South Carolina League | , | |
| A. E. Weatherly | weathe001a-- | 1906 | 8/22-8/30 | Richmond Colts | Virginia League | , | |
| Weaver | 1906 | 6/5-6/22 | Albany | Georgia State League | , | ||
| Art Weaver | weaver001art | 1906 | 4/18-5/19 | Indianapolis Indians | American Association | , | |
| Art Weaver | weaver001art | 1906 | 5/24-9/23 | Terre Haute Hottentots | Central League | , | |
| J. Weaver | 1906 | +5/19+ | Columbus/Brunswick River Snipes | Georgia State League | , | ||
| John Weaver | weaver003joh | 1906 | 5/11-9/23 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Julius Weaver | 1906 | Mattoon-Charleston Canaries | Kentucky-Illinois-Tennessee League | , | |||
| W. F. Weaver | weaver002w-- | 1906 | 5/8-6/7 | Columbus/Brunswick River Snipes | Georgia State League | , | |
| Webb | 1906 | 9/6 | Lowell Tigers | New England League | , | ||
| Cleon Webb | 1906 | 6/27-7/27 | Dallas Giants | Texas League | , | ||
| Cleon Webb | 1906 | 8/11-9/25 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Arthur Weber | weber-001art | 1906 | Houston Buffaloes | South Texas League | , | ||
| Arthur Weber | weber-001art | 1906 | Beaumont Oilers | South Texas League | , | ||
| Dudley Weber | 1906 | Louisiana State | College | , | |||
| Dudley Weber | 1906 | +8/7+ | 4 g. | Baton Rouge Cajuns | Cotton States League | , | |
| Webster | 1906 | 8/6 | Roanoke Tigers | Virginia League | , | ||
| Clifford Webster | 1906 | +5/27-9/23 | Kalamazoo White Sox | Southern Michigan League | , | ||
| Al Weddige | weddig001alb | 1906 | 4/30-7/11 | Lawrence Colts | New England League | , | |
| Fred Weed | weed--001fre | 1906 | 5/2-10/1 | Sioux City Packers | Western League | , | |
| Bert Weeden | weeden001cha | 1906 | 5/14-9/15 | Troy Trojans | New York State League | , | |
| Fred Weeks | weeks-001fre | 1906 | 273 ab | Hudson Marines | Hudson River League | , | |
| Wege | 1906 | 7/26 | York Penn Parks | Tri-State League | , | ||
| Wegman | 1906 | 5/19-5/26+ | Lake Linden Sandy Cities | Northern-Copper Country League | , | ||
| William Weida | weida-000wil | 1906 | Cant.-Entre Nous | Independent | , | ||
| Genser Weidensaul | weiden001yen | 1906 | 4/26-5/22 | Montreal Royals | Eastern League | , | |
| Genser Weidensaul | weiden001yen | 1906 | 5/24-6/17 | Toronto Maple Leafs | Eastern League | , | |
| Genser Weidensaul | weiden001yen | 1906 | 6/21-8/29 | Montreal Royals | Eastern League | , | |
| Genser Weidensaul | weiden001yen | 1906 | 8/30-9/19 | Toronto Maple Leafs | Eastern League | , | |
| Curt Weigand | weigan001cur | 1906 | 4/25-9/15 | York Penn Parks | Tri-State League | , | |
| Nicholas Weigart | 1906 | 5/3-9/30 | Denver Grizzlies | Western League | , | ||
| Gus Weill | 1906 | 7/24-8/16 | Camden | South Carolina League | , | ||
| Gus? Weill | 1906 | 6/11-7/13 | Georgetown | South Carolina League | , | ||
| Jake Weimer | weimer001jac | 1906 | 119 g. | Cincinnati | National League | Cincinnati, OH | |
| John Weimer | 1906-07 | Gettysburg Col. | College | , | |||
| John Weimer | 1906 | DuBois Miners | Interstate League | , | |||
| Ed Weinberg | 1906 | 66 g. | Tecumseh | Southern Michigan League | , | ||
| Raymond Weisbrod | weisbr001j-- | 1906 | +6/19+ | Kearney NB | Independent | , | |
| Cecil Weisenberger | weisen001cec | 1906 | 4/20-4/24 | Minneapolis Millers | American Association | , | |
| Cecil Weisenberger | weisen001cec | 1906 | 5/4-5/30 | Terre Haute Hottentots | Central League | , | |
| Jesse Weisinger | 1906 | 5/1-7/20 | Guthrie Senators | South Central League | , | ||
| Weisner | 1906 | +9/9+ | Army - Camp Tacoma | , | |||
| Charles Weisner | weisne002cha | 1906 | +7/30+ | Chillicothe MO | Independent | , | |
| Welch | 1906 | +7/2+ | Cornell Univ | College | , | ||
| Welch | 1906 | Ottawa | Northern Independent League | , | |||
| Welch | 1906 | 6/25-7/4 | Umpire | Western Association | , | ||
| Conrad Welch | welch-001con | 1906 | no g. | Baltimore Orioles | Eastern League | , | |
| Harry Welch | welch-002har | 1906 | 5/2-10/1 | Omaha Rourkes | Western League | , | |
| Harry Welch | welch-002har | 1906 | Creighton Med. | College | , | ||
| Harry Welch | welch-001har | 1906 | 5/11-9/23 | Binghamton Bingoes | New York State League | , | |
| Harry Welch | 1906 | +5/4-5/25+ | Shawnee Blues | South Central League | , | ||
| Joseph Welch | welch-001jos | 1906 | Seneca Falls | Empire State League | , | ||
| Mike Welday | welday001lyn | 1906 | 5/2-9/30 | Des Moines Champs | Western League | , | |
| Burns Weller | weller001h-- | 1906 | 5/12-9/21 | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| William Weller | weller001wil | 1906 | Guthrie Senators | South Central League | , | ||
| Wells | 1906 | 7/21 | Nashville Volunteers | Southern Association | , | ||
| Dummy Wells | 1906 | Princeton Univ. | College | , | |||
| Robert Wells | 1906 | 5/7-9/15 | Nashville Volunteers | Southern Association | , | ||
| Harry Welsh | 1906 | 6/3-9/3 | Waco Navigators | Texas League | , | ||
| John Welsh | 1906 | +8/26+ | Erie Sailors | Interstate League | , | ||
| R. Welsh | welsh-001r-- | 1906 | 4/27-6/16 | Dayton Veterans | Central League | , | |
| R. Welsh | welsh-001r-- | 1906 | +6/22-9/23 | Terre Haute Hottentots | Central League | , | |
| John Welter | welter002joh | 1906 | 5/3-5/18+ | Saginaw | Interstate Association | , | |
| John Welter | welter002joh | 1906 | 6/25-9/23 | Springfield Midgets | Western Association | , | |
| Benton Welty | welty-001ben | 1906 | 4/28-6/17 | Sharon Steels | Ohio-Pennsylvania League | , | |
| Calvin Wenger | 1906 | 5/3-7/3 | Erie Sailors | Interstate League | , | ||
| Calvin Wenger | 1906 | 8/2-9/20+ | Battle Creek Crickets | Southern Michigan League | , | ||
| Fred Wenig | wenig-001fre | 1906 | 4/17-7/24 | Columbia Gamecocks | South Atlantic League | , | |
| Fred Wenig | wenig-001fre | 1906 | 7/2-8/18 | Darlington | South Carolina League | , | |
| Fred Wenig | wenig-001fre | 1906 | +8/30+ | Freeport Pretzels | Wisconsin State League | , | |
| Perry Werden | werden001per | 1906 | 49 g. | Vicksburg Hill Billies | Cotton States League | , | |
| Perry Werden | werden001per | 1906 | 7/20-9/17 | Umpire | American Association | , | |
| William Wesp | wesp--000--- | 1906 | 4/27-5/18 | Terre Haute Hottentots | Central League | , | |
| William Wesp | wesp--000--- | 1906 | 5/25-7/7 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| William Wesp | wesp--000--- | 1906 | 7/11-8/15 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | |
| William Wesp | wesp--000--- | 1906 | 8/22-9/13 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Frank Wessel | wessel002fra | 1906 | +5/4-9/12+ | Wheeling Stogies | Central League | , | |
| George Wessler | wessle001geo | 1906 | Salt Lake UT | Independent | , | ||
| West | 1906 | 6/1-8/3 | Sharon Steels | Ohio-Pennsylvania League | , | ||
| West | 1906 | 10 g. | Baton Rouge Cajuns | Cotton States League | , | ||
| West | 1906 | Jackson Senators | Cotton States League | , | |||
| Hi West | west--003jam | 1906 | 5/10-9/20 | Wilkes-Barre Barons | New York State League | , | |
| Walter West | 1906 | Rockville CT | Independent | , | |||
| Walter West | 1906 | 8/28-9/6 | New Haven Blues | Connecticut State League | , | ||
| William West | 1906 | 6/4- | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Coley Westbrook | westbr002--- | 1906 | 5/5-5/17+ | Americus Pallbearers | Georgia State League | , | |
| Coley Westbrook | westbr002--- | 1906 | 6/19-7/14 | Manning | South Carolina League | , | |
| Ralph Westcott | westco001ral | 1906 | 5/6-8/1 | Webb City Goldbugs | Western Association | , | |
| Ralph Westcott | westco001ral | 1906 | 8/9-9/23 | Joplin Miners | Western Association | , | |
| Oscar Westerberg | wester001osc | 1906 | 4/28-5/13 | Tacoma Tigers | Northwestern League | , | |
| Oscar Westerberg | wester001osc | 1906 | Alameda Grays | California League | , | ||
| Fred Westervelt | 1906 | 5/5-6/13+ | Columbus/Brunswick River Snipes | Georgia State League | , | ||
| George Westervelt | 1906 | 8/23-8/25 | Waco Navigators | Texas League | , | ||
| Bob Westlake | westla001rob | 1906 | +5/2-5/26 | Waco Navigators | Texas League | , | |
| James Westlake | westla001jam | 1906 | Paterson Intruders | Hudson River League | , | ||
| Jesse Westmoreland | westmo000jes | 1906 | Lawton OK | Independent | , | ||
| Henry Wetzel | 1906 | 132 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | ||
| Arthur Whalen | whalen001art | 1906 | 5/1 | Charleston Sea Gulls | South Atlantic League | , | |
| Arthur Whalen | whalen001art | 1906 | 5/16-6/20 | Americus Pallbearers | Georgia State League | , | |
| Arthur Whalen | whalen001art | 1906 | 6/23-8/16 | Georgetown | South Carolina League | , | |
| Arthur Whalen | whalen001art | 1906 | +9/9-9/19 | Kalamazoo White Sox | Southern Michigan League | , | |
| Jimmy Whalen | whalen003wil | 1906 | 4/28-9/6 | Montreal Royals | Eastern League | , | |
| Thomas Whalen | 1906 | 10 g. | Lake Charles Creoles | South Texas League | , | ||
| Bert Wharton | wharto001ber | 1906 | 5/24-5/30 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| Zack Wheat | wheat-001zac | 1906 | Enterprise KS | Independent | , | ||
| Ed Wheeler | wheele003edw | 1906 | 4/18-9/17 | St. Paul Saints | American Association | , | |
| George Wheeler | wheele002geo | 1906 | 161 g./120 g. | San Francisco Seals | Pacific Coast League | , | |
| Joseph Wheeler | 1906 | Columbus MS | Independent | , | |||
| Wallace Wheelock | wheelo000wal | 1906 | 4/26-6/5 | Umpire | Central League | , | |
| Wallace Wheelock | wheelo000wal | 1906 | 6/7-7/6 | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Wallace Wheelock | wheelo000wal | 1906 | Umpire | Illinois-Indiana-Iowa League | , | ||
| J. Wherry | 1906 | Barre-MontpelierNo | , | ||||
| Eugene Whipple | whippl001eug | 1906 | Jackson Senators | Cotton States League | , | ||
| Eugene Whipple | whippl001eug | 1906 | +7/4-8/19+ | Crowley LA | Independent | , | |
| Robert Whisner | 1906 | 5/27+ | Marion-s-pro | Semi-professional | , | ||
| Lew Whistler | whistl002lew | 1906 | St.L.-semi-pro | Semi-professional | , | ||
| John Whitaker | whitak001j-- | 1906 | Knoxville | , | |||
| John Whitaker | whitak001j-- | 1906 | 8/10-9/8 | Lynchburg Shoemakers | Virginia League | , | |
| L. H. Whitaker | 1906 | Fulton | Empire State League | , | |||
| White | 1906 | 4/28-5/16 | Spokane Indians | Northwestern League | , | ||
| White | 1906 | 7/8-7/9 | Sioux City Packers | Western League | , | ||
| Carl White | white-001car | 1906 | 4/28-6/26+ | South McAlester Miners | South Central League | , | |
| Carl White | white-001car | 1906 | Texarkana Shine-Oners | Arkansas-Texas League | , | ||
| Carl White | white-001car | 1906 | 8/25-9/15 | Little Rock Travelers | Southern Association | , | |
| Dan White | 1906 | 7/9-7/31 | Newark Cotton Tops | Ohio-Pennsylvania League | , | ||
| Dan White | 1906 | 8/12-8/13+ | Sharon Steels | Ohio-Pennsylvania League | , | ||
| David White | white-004dav | 1906 | 5/3-6/3 | Pittsburg/Vinita Champs | Kansas State League | , | |
| David White | white-004dav | 1906 | 6/4-7/4 | Pittsburg/Vinita Champs | Kansas State League | , | |
| Doc White | white-001guy | 1906 | USNA | , | |||
| Edward White | 1906 | 4/28-5/4 | Lowell Tigers | New England League | , | ||
| Foley White | white-001fol | 1906 | 4/28-8/7 | South McAlester Miners | South Central League | , | |
| Foley White | white-001fol | 1906 | Lake Charles Creoles | South Texas League | , | ||
| Harry White | white-007har | 1906 | 4/28-8/7 | South McAlester Miners | South Central League | , | |
| Herbert White | 1906 | U. of Virginia | College | , | |||
| Herbert White | 1906 | 8/8 | Norfolk Tars | Virginia League | , | ||
| J. W. White | white-004j-- | 1906 | Meridian Ribboners | Cotton States League | , | ||
| Jack White | white-012joh | 1906 | 4/26-7/7 | Toronto Maple Leafs | Eastern League | , | |
| Jack White | white-012joh | 1906 | 7/10-9/22 | Buffalo Bisons | Eastern League | , | |
| Kirby White | white-001oli | 1906 | Covington KY | Independent | , | ||
| Kirby White | white-001oli | 1906 | 9/13-9/24 | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Robert White | white-010rob | 1906 | 5/26-6/30 | Temple Boll Weevils | Texas League | , | |
| Robert White | white-010rob | 1906 | 40 g. | Mobile Sea Gulls | Cotton States League | , | |
| William White | white-024wil | 1906 | 5/4-9/23 | Webb City Goldbugs | Western Association | , | |
| William White | white-005w-- | 1906 | 5/3- | Fort Scott Giants | Kansas State League | , | |
| George Whiteman | whitem001geo | 1906 | 4/25-9/3 | Cleburne Railroaders | Texas League | , | |
| William Whiteman | 1906 | Benwood WV | Independent | , | |||
| Jesse Whiting | whitin002jes | 1906 | 4/27-9/8 | Lawrence Colts | New England League | , | |
| Jesse Whiting | whitin002jes | 1906 | 3 g. | Brooklyn | National League | Brooklyn, NY | |
| James Whitley | whitle001jam | 1906 | 53 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | |
| Whitmore | 1906 | 1 g. | Seattle Siwashes | Pacific Coast League | , | ||
| Harold Whitmore | 1906 | +5/11+ | 13 g. | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Joseph Whitmore | 1906 | Univ. Wisconsin | College | , | |||
| Joseph Whitmore | 1906 | +7/22-8/10+ | Houghton Giants | Northern-Copper Country League | , | ||
| Charles Whitney | 1906 | Crowley LA | Independent | , | |||
| Herbert Whitney | whitle001her | 1906 | +4/24-6/24 | Burlington Pathfinders | Iowa League | , | |
| Merle Whitney | whitne001mer | 1906 | 4/18-5/24 | Kansas City Blues | American Association | , | |
| Merle Whitney | whitne001mer | 1906 | 6/4-9/29 | Youngstown Ohio Works | Ohio-Pennsylvania League | , | |
| Charles Whitten | whitte005--- | 1906 | 4/28-5/29 | Roanoke Tigers | Virginia League | , | |
| Charles Whitten | whitte005--- | 1906 | 7/18 | Richmond Colts | Virginia League | , | |
| Jo Whittenberg | whitte001ben | 1906 | 4/27-5/2 | Temple Boll Weevils | Texas League | , | |
| Jo Whittenberg | whitte001ben | 1906 | 34 g. | Galveston Sand Crabs | South Texas League | , | |
| Whittmer | 1906 | Boonville IN | Independent | , | |||
| Whittmer | 1906 | 7/31+ | Terre Haute Hottentots | Central League | , | ||
| John Wickenhofer | 1906 | Marietta OH | Independent | , | |||
| John Wickenhofer | 1906 | 5/28-6/2 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | ||
| John Wickenhofer | 1906 | 6/10-7/9 | South Bend Greens | Central League | , | ||
| Bob Wicker | wicker001rob | 1906 | 10 g. | Chicago | National League | Chicago, IL | |
| Bob Wicker | wicker001rob | 1906 | -9/21 | 20 g. | Cincinnati | National League | Cincinnati, OH |
| Edward Wicker | wicker001edw | 1906 | 4/27, 6/4 | Fort Worth Panthers | Texas League | , | |
| Edward Wicker | wicker001edw | 1906 | 6/6-6/29 | Temple Boll Weevils | Texas League | , | |
| Edward Wicker | wicker001edw | 1906 | 7/4 | Cleburne Railroaders | Texas League | , | |
| Edward Wicker | wicker001edw | 1906 | Canyon City | Independent | , | ||
| Jesse Widmann | 1906 | 6/24 | New Orleans Pelicans | Southern Association | , | ||
| Wiedman/Wei | 1906 | Lake Charles Creoles | South Texas League | , | |||
| Wiener | 1906 | 9/6 | Providence Grays | Eastern League | , | ||
| Roudy Wiggins | 1906 | Waterloo Microbes | Iowa League | , | |||
| Roudy Wiggins | 1906 | 4/28-5/1 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Roudy Wiggins | 1906 | +9/23+ | Elyria OH | Independent | , | ||
| Jimmy Wiggs | wiggs-001jam | 1906 | 4 g. | Detroit | American League | Detroit, MI | |
| Jimmy Wiggs | wiggs-001jam | 1906 | 6/14-7/17 | Toledo Mud Hens | American Association | , | |
| Jimmy Wiggs | wiggs-001jam | 1906 | +7/25+ | Burlington | Northern Independent League | , | |
| Jimmy Wiggs | wiggs-001jam | 1906 | 8/25-9/12 | Altoona Mountaineers | Tri-State League | , | |
| Shanks Wilbur | wilbur000sha | 1906 | Seneca Falls | Empire State League | , | ||
| Shanks Wilbur | wilbur000sha | 1906 | 7/23-7/27,8/5-9/17 | Binghamton Bingoes | New York State League | , | |
| Whit Wilcox | 1906 | 6/11-7/18 | Darlington | South Carolina League | , | ||
| Percy Wilder | wilder001per | 1906 | 36 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | |
| Percy Wilder | wilder001per | 1906 | 9/22-9/25 | Evansville River Rats | Central League | , | |
| Jack Wiley | wiley-001joh | 1906 | Leominister MA | Independent | , | ||
| Jack Wiley | wiley-001joh | 1906 | 7/23-9/8 | Norfolk Tars | Virginia League | , | |
| Frederick Wilhelm | wilhel001fre | 1906 | 4/29-9/25 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| Harry Wilhelm | wilhel002har | 1906 | 5/24-5/30 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| Irvin Wilhelm | wilhel001irv | 1906 | 4/11-9/12 | Birmingham Barons | Southern Association | , | |
| Wilkerson | 1906 | Erie Sailors | Interstate League | , | |||
| Joseph Wilkes | wilkes001jos | 1906 | 5/17-5/21 | Holyoke Paperweights | Connecticut State League | , | |
| Joseph Wilkes | wilkes001jos | 1906 | 5/30-6/2 | Sioux City Packers | Western League | , | |
| Joseph Wilkes | wilkes001jos | 1906 | 100 g. | Waterloo Microbes | Iowa League | , | |
| Joe Wilkins | wilkin001jos | 1906 | Grays Harbor Lumbermen | Northwestern League | , | ||
| Roy Wilkins | wilkin001roy | 1906 | preseason | Iola Grays/Cherryvale Boosters | Kansas State League | , | |
| Roy Wilkins | wilkin001roy | 1906 | Austin Senators | South Texas League | , | ||
| Roy Wilkins | wilkin001roy | 1906 | BloomerGirls | Independent | , | ||
| Frederick Wilkinson | wilkin002fre | 1906 | 5/5-7/25 | Joplin Miners | Western Association | , | |
| George Wilkinson | wilkin003geo | 1906 | 132 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | |
| Jack Wilkinson | wilkin004jac | 1906 | Umpire | Kentucky-Illinois-Tennessee League | , | ||
| John Will | 1906 | NewOrl-Postal | New Orleans Commercial League | , | |||
| Willard | willar005--- | 1906 | +4/12+ | Athena OR | Independent | , | |
| Ed Willett | willet002rob | 1906 | 5/4-8/27 | Wichita Jobbers | Western Association | , | |
| Ed Willett | willet002rob | 1906 | 9/5- | 3 g. | Detroit | American League | Detroit, MI |
| Williams | 1906 | 5/23 | New Haven Blues | Connecticut State League | , | ||
| Williams | 1906 | +7/10-8/23+ | Montpelier-Barre | Northern Independent | , | ||
| Williams | 1906 | 6/9-6/13 | Pueblo Indians | Western League | , | ||
| Williams | 1906 | 7/12-7/29 | Spokane Indians | Northwestern League | , | ||
| Williams | 1906 | 7/30-7/31+ | Terre Haute Hottentots | Central League | , | ||
| Williams | 1906 | 9/6 | Newark Sailors | Eastern League | , | ||
| Alfred Williams | willia001alf | 1906 | Newburgh Hill Climbers | Hudson River League | , | ||
| Alva Williams | 1906 | 58 g. | Keokuk Indians | Iowa League | , | ||
| C. A. Williams | 1906 | 6/?-6/? | 4 g. | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Clyde Williams | willia002s-- | 1906 | 121 g. | Marshalltown Brownies | Iowa League | , | |
| Clyde Williams | willia002s-- | 1906-09 | Iowa State U. | College | , | ||
| Dave Williams | willia013dav | 1906 | 5/18-6/8 | Kansas City Blues | American Association | , | |
| Dave Williams | willia013dav | 1906 | 7/10-9/27 | Sioux City Packers | Western League | , | |
| E. D. R. Williams | 1906 | 5/8 | New London Whalers | Connecticut State League | , | ||
| Eddie Williams | 1906 | Atlantic City NJ | Independent | , | |||
| Harvey Williams | willia009har | 1906 | 8/16-9/18 | Toronto Maple Leafs | Eastern League | , | |
| James Williams | willia012jam | 1906 | +6/23-9/3 | Dallas Giants | Texas League | , | |
| Jimmy Williams | willia025jam | 1906 | New York | American League | New York, NY | ||
| Nick Williams | willia011ric | 1906 | 147 g. | San Francisco Seals | Pacific Coast League | , | |
| Otto Williams | willia001ott | 1906 | -6/9 | 20 g. | Washington | American League | Washington, DC |
| Otto Williams | willia001ott | 1906 | 6/29-9/15 | Indianapolis Indians | American Association | , | |
| Tom Williams | willia004tom | 1906 | 4/29-9/23 | South Bend Greens | Central League | , | |
| Emile Williford | 1906 | 5/5 | Pittsburg/Vinita Champs | Kansas State League | , | ||
| Emile Williford | 1906 | 5/12-8/ | Coffeyville Bricks | Kansas State League | , | ||
| Emile Williford | 1906 | +8/14+ | Bartlesville Indians | Kansas State League | , | ||
| Henry Willig | willig001hen | 1906 | 4/28-5/7 | Johnstown Johnnies | Tri-State League | , | |
| Henry Willig | willig001hen | 1906 | 5/26-9/15 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| Louie Willig | willig001lou | 1906 | no g. | Amsterdam-Gloversville-Johnstown Jags | New York State League | , | |
| Delaware Willis | willis001del | 1906 | no g. | Shreveport Pirates | Southern Association | , | |
| Delaware Willis | willis001del | 1906 | 5/18-9/11 | Jacksonville Jays | South Atlantic League | , | |
| Otto Willis | 1906 | 4/26-9/8 | Roanoke Tigers | Virginia League | , | ||
| Ralph Willis | willis001ral | 1906 | 4/27-9/24 | Canton Chinamen | Central League | , | |
| John Willoughby | 1906 | DuBois Miners | Interstate League | , | |||
| Dave Wills | 1906 | 67 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Dave Wills | 1906 | +7/24-8/14+ | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | ||
| Albert Wilmot | wilmot001alb | 1906 | 5/1-8/26 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| Albert Wilmot | wilmot001alb | 1906 | 8/28-9/25 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | |
| Wilson | 1906 | 116 g. | Lowell Tigers | New England League | , | ||
| Wilson | 1906 | 47 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Wilson | 1906 | 5/19-7/28 | Grand Forks Forkers | Northern-Copper Country League | , | ||
| Wilson | 1906 | 5/19-6/26+ | Winnipeg Maroons | Northern-Copper Country League | , | ||
| Wilson | 1906 | 7/19 | Roanoke Tigers | Virginia League | , | ||
| Art Wilson | wilson001art | 1906 | 5/3-9/16 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Christy Wilson | wilson003chr | 1906 | +5/14-9/6+ | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Ernest Wilson | wilson001ern | 1906 | 5/3-9/9 | Independence Coyotes | Kansas State League | , | |
| F. B. Wilson | 1906 | +5/5-5/30+ | Waycross Machinists | Georgia State League | , | ||
| Frank Wilson | wilson004fra | 1906 | 5/4-9/23 | Oklahoma City Mets | Western Association | , | |
| Fred Wilson | wilson001bla | 1906 | +5/19-5/28+ | Cedar Rapids Rabbits | Illinois-Indiana-Iowa League | , | |
| Fred Wilson | wilson001bla | 1906 | 6/16-7/1 | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Gary Wilson | wilson010jam | 1906 | 4/27-9/8 | Lawrence Colts | New England League | , | |
| James Wilson | 1906 | Hornell/Patton Pigmies | Interstate League | , | |||
| James Wilson | 1906 | 7/26-9/23 | Utica Pent-Ups | New York State League | , | ||
| Jasper Wilson | wilson020jam | 1906 | 4/26-7/14 | Lynchburg Shoemakers | Virginia League | , | |
| Joseph Wilson | 1906 | 5/24-6/19 | Steubenville Stubs | Pennsylvania-Ohio-Maryland League | , | ||
| Owen Wilson | wilson016joh | 1906 | 4/25-9/3 | Fort Worth Panthers | Texas League | , | |
| Parke Wilson | wilson001par | 1906 | San Francisco Seals | Pacific Coast League | , | ||
| Peter Wilson | wilson001pet | 1906 | 4/27-9/8 | Hartford Senators | Connecticut State League | , | |
| T. E. Wilson | 1906 | 5/3-5/19 | Parsons Preachers | Kansas State League | , | ||
| William Wilson | 1906 | 7/8-8/23 | Webb City Goldbugs | Western Association | , | ||
| Willy Wilson | wilson003wil | 1906 | 4/29-9/20 | Canton Chinamen | Central League | , | |
| Willy Wilson | wilson003wil | 1906 | 10/3 | Washington | American League | Washington, DC | |
| Lewis Wiltse | wiltse001lew | 1906 | 4/25-5/23 | York Penn Parks | Tri-State League | , | |
| Lewis Wiltse | wiltse001lew | 1906 | 5/31 | Johnstown Johnnies | Tri-State League | , | |
| Lewis Wiltse | wiltse001lew | 1906 | +7/2-7/19 | Plattsburgh | Northern Independent League | , | |
| Lewis Wiltse | wiltse001lew | 1906 | +7/25-8/9+ | Rutland | Northern Independent League | , | |
| Lewis Wiltse | wiltse001lew | 1906 | Rockville CT | Independent | , | ||
| Fred Winchell | winche001fre | 1906 | 58 g. | San Antonio Bronchos | South Texas League | , | |
| Dolph Wind | wind--001ado | 1906 | StL.- | St. Louis Trolley League | , | ||
| Dolph Wind | wind--001ado | 1906 | 7/28-8/1 | Leavenworth Old Soldiers | Western Association | , | |
| W. Harlan Wingard | wingar001har | 1906 | 4/26-5/30 | Umpire | Virginia League | , | |
| James Winger | 1906 | Corbin KS | Independent | , | |||
| Winslow | 1906 | Brown Univ. | College | , | |||
| Winslow | 1906 | 6/8-6/16 | Guthrie Senators | South Central League | , | ||
| Big Liz Winston | winsto001--- | 1906 | +5/2-6/25+ | Rich.-Brownies | Independent | , | |
| Big Liz Winston | winsto001--- | 1906 | 6/29-7/26 | Danville Red Sox | Virginia League | , | |
| George Winter | winter001geo | 1906 | Boston | American League | Boston, MA | ||
| Winters | 1906 | 5/6-7/23+ | Montesano | Southwest Washington League | , | ||
| George Winters | winter002geo | 1906 | 4/11-9/15 | Atlanta Crackers | Southern Association | , | |
| Scott Winters | winter002sco | 1906 | 5/2-6/1 | Lancaster Lanks | Ohio-Pennsylvania League | , | |
| Scott Winters | winter002sco | 1906 | 6/6-9/29 | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Lloyd Wirick | 1906 | 5/4-5/10 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Lloyd Wirick | 1906 | +7/9+ | Elyria OH | Independent | , | ||
| Lloyd Wirick | 1906 | 9/15-9/25 | Sharon Steels | Ohio-Pennsylvania League | , | ||
| Pat Wise | wise--001ler | 1906 | 4/29-5/30 | Dayton Veterans | Central League | , | |
| Sam Wise | wise--001sam | 1906 | 4/28-9/29 | Umpire | Ohio-Pennsylvania League | , | |
| Doc Wiseman | wisema001jul | 1906 | 4/11-9/15 | Nashville Volunteers | Southern Association | , | |
| Gus Wisser | wisser001a-- | 1906 | 5/1-6/9+ | Tulsa Oilers | South Central League | , | |
| Gus Wisser | wisser001a-- | 1906 | 6/15-7/14+ | Shawnee Blues | South Central League | , | |
| Gus Wisser | wisser001a-- | 1906 | 7/25-9/23 | Oklahoma City Mets | Western Association | , | |
| Gus Wisser | wisser001a-- | 1906 | 7/31 | Springfield Midgets | Western Association | , | |
| Roy Witherup | wither001fos | 1906 | 5/14- | 8 g. | Boston | National League | Boston, MA |
| Roy Witherup | wither001fos | 1906 | 7/1 | Lowell Tigers | New England League | , | |
| Roy Witherup | wither001fos | 1906 | 8/18-9/14 | Uniontown Coal Barons | Pennsylvania-Ohio-Maryland League | , | |
| Harvey Witt | witt--002har | 1906 | Keokuk Indians | Iowa League | , | ||
| Bill Wittemore | 1906 | U. Wisconsin | College | , | |||
| John Wobbe | 1906 | St.Louis- | St. Louis Trolley League | , | |||
| Wolf | 1906 | 4/26-6/4 | Roanoke Tigers | Virginia League | , | ||
| Wolf/e | 1906 | 4/26+ | 23 g. | Roanoke Tigers | Virginia League | , | |
| Wolf/e | 1906 | 6/11-8/18 | Camden | South Carolina League | , | ||
| Wolfe | 1906 | 8/22 | Norfolk Tars | Virginia League | , | ||
| Barney Wolfe | wolfe-001wil | 1906 | -5/24 | 4 g. | Washington | American League | Washington, DC |
| Barney Wolfe | wolfe-001wil | 1906 | 6/10-6/29 | Louisville Colonels | American Association | , | |
| Barney Wolfe | wolfe-001wil | 1906 | 7/6-7/11 | Kansas City Blues | American Association | , | |
| Barney Wolfe | wolfe-001wil | 1906 | 8/11-9/15 | Butler/Piedmont/Charleroi | Pennsylvania-Ohio-Maryland League | , | |
| Jack Wolfe | 1906 | +6/10-6/14+ | Saginaw | Interstate Association | , | ||
| Maurice Wolfe | wolfe-001mau | 1906 | 5/30-6/19 | Hartford Senators | Connecticut State League | , | |
| Orville Wolfe | 1906 | 29 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | ||
| Orville Wolfe | 1906 | no g. | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| Roland Wolfe | wolfe-001rol | 1906 | 5/14-5/30 | Topeka White Sox | Western Association | , | |
| Roland Wolfe | wolfe-001rol | 1906 | 6/7-8/16 | Lincoln Ducklings | Western League | , | |
| Roland Wolfe | wolfe-001rol | 1906 | 8/19-9/30 | Des Moines Champs | Western League | , | |
| Walter Wolfe | 1906 | 14 g. | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| T. R. Wolff | 1906 | Rutland | Northern Independent League | , | |||
| Harry Wolter | wolter001har | 1906 | 149 g. | Fresno Raisin Eaters | Pacific Coast League | , | |
| Harry Wolter | wolter001har | 1906 | San Jose Prune Pickers | California League | , | ||
| Wolters | 1906 | 137 g. | Fresno Raisin Eaters | Pacific Coast League | , | ||
| Harry Wolverton | wolver001har | 1906 | 4/25-9/15 | Williamsport Millionaires | Tri-State League | , | |
| William Wolverton | 1906 | 5/6-9/9 | Coffeyville Bricks | Kansas State League | , | ||
| John Womack | womack001har | 1906 | 4/26-5/2 | Temple Boll Weevils | Texas League | , | |
| John Womack | womack001har | 1906 | 5/7-5/17 | Cleburne Railroaders | Texas League | , | |
| John Womack | womack001har | 1906 | 5/20-7/4 | Guthrie Senators | South Central League | , | |
| John Womack | womack001har | 1906 | 7/14-8/1 | Tulsa Oilers | South Central League | , | |
| John Womack | womack001har | 1906 | +8/21-9/7 | Coffeyville Bricks | Kansas State League | , | |
| Louis Womble | womble001lou | 1906 | no g. | Omaha Rourkes | Western League | , | |
| Louis Womble | womble001lou | 1906 | 5/4-5/21 | 88 g. | Topeka White Sox | Western Association | , |
| Louis Womble | womble001lou | 1906 | 5/27-7/14 | Joplin Miners | Western Association | , | |
| Louis Womble | womble001lou | 1906 | +7/25-8/28 | Iola Grays/Cherryvale Boosters | Kansas State League | , | |
| Louis Womble | womble001lou | 1906 | 8/31-9/23 | Webb City Goldbugs | Western Association | , | |
| Wood | 1906 | 6/5 | York Penn Parks | Tri-State League | , | ||
| Wood | 1906 | 7/21 | Tulsa Oilers | South Central League | , | ||
| Bob Wood | wood--005rob | 1906 | 5/2-7/4 | Toronto Maple Leafs | Eastern League | , | |
| Bob Wood | wood--005rob | 1906 | 7/14-9/21 | Buffalo Bisons | Eastern League | , | |
| Bob Wood | wood--005rob | 1906 | 1 g. | Seattle Siwashes | Pacific Coast League | , | |
| George Wood | wood--004geo | 1906 | 5/11-7/16 | Umpire | New York State League | , | |
| Monte Wood | 1906 | 5/2-5/24 | Zanesville/Marion Moguls | Ohio-Pennsylvania League | , | ||
| Monte Wood | 1906 | 6/12-9/25 | Dayton Veterans | Central League | , | ||
| Smoky Joe Wood | wood--001joe | 1906 | Ness City KS | Independent | , | ||
| Smoky Joe Wood | wood--001joe | 1906 | BloomerGirls | Independent | , | ||
| Eugene Woodburn | 1906 | 9/11 | Lancaster Lanks | Ohio-Pennsylvania League | , | ||
| Roy Woodbury | woodbu001roy | 1906 | 5/3-5/4 | Iola Grays/Cherryvale Boosters | Kansas State League | , | |
| Roy Woodbury | woodbu001roy | 1906 | 5/9-5/10 | Parsons Preachers | Kansas State League | , | |
| Woodford | 1906 | 5/8-6/27 | Umpire | Connecticut State League | , | ||
| Jimmy Woodford | 1906 | 7/12+ | Tulsa Oilers | South Central League | , | ||
| Claude Woodring | 1906 | 26 g. | Cairo Giants | Kentucky-Illinois-Tennessee League | , | ||
| Guy Woodruff | woodru001guy | 1906 | 115 g. | Baton Rouge Cajuns | Cotton States League | , | |
| Sam Woodruff | woodru001orv | 1906 | 4/18-9/16 | Louisville Colonels | American Association | , | |
| Woods | 1906 | 5/30 | Hartford Senators | Connecticut State League | , | ||
| Eugene Woods | 1906 | Buff.-Travelers | Independent | , | |||
| Jim Woods | 1906 | 8/3 | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Lewis Woods | woods-001lew | 1906 | 5/4-9/22 | Oklahoma City Mets | Western Association | , | |
| Walt Woods | woods-002wal | 1906 | 4/26-9/23 | Jersey City Skeeters | Eastern League | , | |
| Arthur Woodward | 1906 | Univ. Vermont | College | , | |||
| Arthur Woodward | 1906 | Attleboro MA | Independent | , | |||
| Arthur Woodward | 1906 | 7/18-9/8 | Fall River Indians | New England League | , | ||
| Bennie Woodward | woodwa001b-- | 1906 | 4/26-5/19 | Danville Red Sox | Virginia League | , | |
| Samuel Woodward | 1906 | 56 g. | Baton Rouge Cajuns | Cotton States League | , | ||
| George Woodyatt | 1906 | 32 g. | Waterloo Microbes | Iowa League | , | ||
| Howard Woodyatt | 1906 | +8/12+ | Dixon IL | Independent | , | ||
| L. Woodyatt | 1906 | +8/12+ | Dixon IL | Independent | , | ||
| M. Woodyatt | 1906 | +8/12+ | Dixon IL | Independent | , | ||
| Elijah Wooley | wooley001eli | 1906 | 5/4-9/23 | Leavenworth Old Soldiers | Western Association | , | |
| Frank Wooliver | wooliv001fra | 1906 | 5/15 | Springfield Midgets | Western Association | , | |
| Frank Wooliver | wooliv001fra | 1906 | 7/6-7/18 | Guthrie Senators | South Central League | , | |
| William Woolson | 1906 | Muskegon MI | Independent | , | |||
| Lloyd Wooten | wooten000llo | 1906 | 7/3-7/28 | Georgetown | South Carolina League | , | |
| Clarence Workman | 1906 | 4/26-6/6 | Roanoke Tigers | Virginia League | , | ||
| Clarence Wortham | wortha002--- | 1906 | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Michael Wotell | wotell001mic | 1906 | 5/19-8/12 | Lake Linden Sandy Cities | Northern-Copper Country League | , | |
| Michael Wotell | wotell001mic | 1906 | 8/18-9/21 | Toronto Maple Leafs | Eastern League | , | |
| John Wratten | wratte001irv | 1906 | 4/28-9/29 | Newark Cotton Tops | Ohio-Pennsylvania League | , | |
| Samuel Wray | 1906 | Denton AC TX | Independent | , | |||
| Forrest Wright | wright001for | 1906 | 5/3-9/30 | Denver Grizzlies | Western League | , | |
| Gene Wright | wright001cla | 1906 | 5/18-5/20 | Akron Rubbernecks | Ohio-Pennsylvania League | , | |
| Gene Wright | wright001cla | 1906 | 5/22-5/28 | Umpire | Ohio-Pennsylvania League | , | |
| Lucky Wright | wright007wil | 1906 | 4/25-6/19+ | Umpire | Texas League | , | |
| Lucky Wright | wright007wil | 1906 | 6 g. | San Antonio Bronchos | South Texas League | , | |
| Lucky Wright | wright007wil | 1906 | Hobart OK | Independent | , | ||
| Lucky Wright | wright015wil | 1906 | 7/1-9/16 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Red Wright | wright001jos | 1906 | 115 g. | Mobile Sea Gulls | Cotton States League | , | |
| Robert Wright | wright008rob | 1906 | 4/25-9/3 | Cleburne Railroaders | Texas League | , | |
| S. I. Wright | 1906 | 28 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | ||
| Zeke Wrigley | wrigle001zek | 1906 | 4/18-9/16 | Columbus Senators | American Association | , | |
| William Wuest | 1906 | 5/21-6/28 | Roanoke Tigers | Virginia League | , | ||
| William Wynne | wynne-001wil | 1906 | 4/26-6/9 | Norfolk Tars | Virginia League | , | |
| William Wynne | wynne-001wil | 1906 | 6/20-8/18 | Camden | South Carolina League | , | |
| Ad Yale | yale--001wil | 1906 | 4/26-5/16 | Toronto Maple Leafs | Eastern League | , | |
| Ad Yale | yale--001wil | 1906 | 5/29-9/8 | Springfield Ponies | Connecticut State League | , | |
| Hogan Yancey | yancey001hog | 1906 | 4/26-5/30 | Rochester Bronchos | Eastern League | , | |
| Hogan Yancey | yancey001hog | 1906 | 5/31-7/21 | Toronto Maple Leafs | Eastern League | , | |
| Hogan Yancey | yancey001hog | 1906 | 7/24-9/22 | Scranton Miners | New York State League | , | |
| Worth Yancey | 1906 | +8/7+ | Americus Pallbearers | Georgia State League | , | ||
| Worth Yancey | 1906 | 7/7-8/3 | Manning | South Carolina League | , | ||
| Ed Yane | 1906 | Auburn College | College | , | |||
| Ed Yane | 1906 | Gulfport Crabs | Cotton States League | , | |||
| Roscoe Yant | 1906 | 123 g. | Keokuk Indians | Iowa League | , | ||
| Louis Yarger | 1906 | Quakertown | Southern New Jersey | , | |||
| J. William Yarnell | 1906 | 26 g. | Mansfield Giants | Ohio-Pennsylvania League | , | ||
| Yeager | 1906 | 6/27 | Little Rock Travelers | Southern Association | , | ||
| Charles Yeager | yeager001cha | 1906 | 71 g. | Fort Dodge Gypsumites | Iowa League | , | |
| George Yeager | yeager001geo | 1906 | 4/18-9/8 | Minneapolis Millers | American Association | , | |
| Joe Yeager | yeager002jos | 1906 | 57 g. | New York | American League | New York, NY | |
| Robert Yeager | yeager003rob | 1906 | 4/28 | Cleburne Railroaders | Texas League | , | |
| Ralph Yeazell | yeasel001lef | 1906 | 4/28-5/10 | Grays Harbor Lumbermen | Northwestern League | , | |
| Armidas Yelle | 1906 | +6/14-7/25+ | Cadillac MI | Independent | , | ||
| Armidas Yelle | 1906 | +9/8-9/23 | Saginaw | Southern Michigan League | , | ||
| George Yentzen | 1906 | Donaldsonville LA | Independent | , | |||
| Yerkes | 1906 | +7/7+ | Dover DE | Independent | , | ||
| Claude Yerkes | 1906 | +5/26-7/25+ | Catasauqua PA | Independent | , | ||
| David Yerkes | 1906 | Dover DE | Independent | , | |||
| Stan Yerkes | yerkes001sta | 1906 | 4/27-6/19 | Harrisburg Senators | Tri-State League | , | |
| Stan Yerkes | yerkes001sta | 1906 | Rutland | Northern Independent League | , | ||
| Stan Yerkes | yerkes001sta | 1906 | 8/22-9/8 | New Haven Blues | Connecticut State League | , | |
| Steve Yerkes | yerkes001ste | 1906-07 | U. of Pennsylvania | College | , | ||
| Steve Yerkes | yerkes001ste | 1906 | +7/6+ | Millville | Southern New Jersey | , | |
| Steve Yerkes | yerkes001ste | 1906 | 7/31 | Altoona Mountaineers | Tri-State League | , | |
| William Yerkes | 1906 | +7/16+ | Millville | Southern New Jersey | , | ||
| William Yerkes | 1906 | 8/3 | Wilkes-Barre Barons | New York State League | , | ||
| Arthur Yessler | 1906 | 9 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Arthur Yessler | 1906 | 7/30-8/7 | South Bend Greens | Central League | , | ||
| Joseph Yessler | 1906 | Univ. of Iowa | College | , | |||
| Joseph Yessler | 1906 | +7/5+ | Marshalltown Brownies | Iowa League | , | ||
| Joseph Yessler | 1906 | +9/13+ | Boone/Clinton Miners | Iowa League | , | ||
| Earl Yingling | 1906 | 9/20 | Dayton Veterans | Central League | , | ||
| Yiount | 1906 | Emporia State U. | College | , | |||
| Yockey | 1906 | Kansas State League | , | ||||
| John Yoedt | 1906 | 5/24-9/13 | Waynesburg | Pennsylvania-Ohio-Maryland League | , | ||
| J. Frank Yohe | 1906 | 5/6 | Sharon Steels | Ohio-Pennsylvania League | , | ||
| William Yohe | yohe--002wil | 1906 | 4/25-6/30 | Temple Boll Weevils | Texas League | , | |
| William Yohe | yohe--002wil | 1906 | 7/26-7/28 | Webb City Goldbugs | Western Association | , | |
| William Yohe | yohe--002wil | 1906 | 8/2-9/9 | Chanute Browns | Kansas State League | , | |
| Yont | 1906 | Illinois-Indiana-Iowa League | , | ||||
| Yont | 1906 | 7/8- | San Jose Prune Pickers | California State League | , | ||
| Young | 1906 | 8/3-8/15 | Montgomery Senators | Southern Association | , | ||
| Benjamin Young | 1906 | +3/21+ | Univ. Kansas | College | , | ||
| Elmer Young | young-001elm | 1906 | Boyertown PA | Independent | , | ||
| Harlan Young | young-001har | 1906 | 5/12-9/23 | Springfield Midgets | Western Association | , | |
| Irv Young | young-001irv | 1906 | 43 g. | Boston | National League | Boston, MA | |
| Youngblood | 1906 | 5 g. | Danville Old Soldiers | Kentucky-Illinois-Tennessee League | , | ||
| Herbert Yount | yount-001hen | 1906 | 8/1-8/18 | Orangeburg | South Carolina League | , | |
| John Youst | youst-001--- | 1906 | +6/27-6/30 | Guthrie Senators | South Central League | , | |
| John Youst | youst-001--- | 1906 | +7/29+ | Parsons Preachers | Kansas State League | , | |
| Elmer Zacher | zacher001elm | 1906 | 4/27-9/7 | Worcester Busters | New England League | , | |
| Zackert | 1906 | 5/5-5/17 | St. Joseph Packers/Hutchinson Salt Packers | Western Association | , | ||
| George Zackert | 1906 | Hastings NB | Independent | , | |||
| George Zackert | 1906 | 6/26-9/26 | Lincoln Ducklings | Western League | , | ||
| Jack Zalusky | zalusk001joh | 1906 | 5/2-9/30 | Denver Grizzlies | Western League | , | |
| Joseph Zalusky | zalusk000jos | 1906 | 14 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Dave Zearfoss | zearfo001dav | 1906 | 5/4-5/27 | Topeka White Sox | Western Association | , | |
| Louis Zehner | zehner001lou | 1906 | 5/19 | Nashville Volunteers | Southern Association | , | |
| Rollie Zeider | zeider001rol | 1906 | 5/19-9/3 | Winnipeg Maroons | Northern-Copper Country League | , | |
| Rollie Zeider | zeider001rol | 1906 | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| Sam Zeigenbein/Zie | zeigen001sam | 1906 | 5/3- | Lima | Interstate Association | , | |
| Sam Zeigenbein/Zie | zeigen001sam | 1906 | 5/15-5/ | Battle Creek Crickets | Southern Michigan League | , | |
| Gus Zeimer | zeimer001gus | 1906 | 5/10-9/22 | Scranton Miners | New York State League | , | |
| Peter Zeller | zeller001pet | 1906 | 4/13-9/15 | Atlanta Crackers | Southern Association | , | |
| John Ziegler | ziegle001joh | 1906 | Olean Refiners | Interstate League | , | ||
| Zigmeyer | 1906 | +5/22-5/23+ | Guthrie Senators | South Central League | , | ||
| Charles Zimmer | zimmer001cha | 1906 | 4/12-9/15 | Little Rock Travelers | Southern Association | , | |
| Eddie Zimmerman | zimmer001edw | 1906 | 4/25-9/15 | York Penn Parks | Tri-State League | , | |
| Eddie Zimmerman | zimmer001edw | 1906 | 9/29- | 5 g. | St. Louis | National League | St. Louis, MO |
| Heinie Zimmerman | zimmer002hen | 1906 | Red Hook NJ | Independent | , | ||
| Heinie Zimmerman | zimmer002hen | 1906 | 8/21-9/22 | Wilkes-Barre Barons | New York State League | , | |
| Bill Zink | zink--001wil | 1906 | 140 g. | Leavenworth Old Soldiers | Western Association | , | |
| Eddie Zinram | zinram001edw | 1906 | 5/2-9/30 | Lincoln Ducklings | Western League | , | |
| Charles Zinzer | zinzer001cha | 1906 | 5/23-9/22 | Wilkes-Barre Barons | New York State League | , | |
| Joe Zoellers | zoelle002jos | 1906 | 5/31-6/29 | Wichita Jobbers | Western Association | , | |
| Harry Zollers | zoelle001har | 1906 | Little Rock Travelers | Southern Association | , | ||
| Harry Zollers | zoelle001har | 1906 | 5/24-9/11 | East Liverpool | Pennsylvania-Ohio-Maryland League | , | |
| Earl Zook | zook--001ear | 1906 | 4/30-5/24 | Waco Navigators | Texas League | , | |
| August Zurlage | zurlag001a-- | 1906 | 4/26-9/1 | Danville Red Sox | Virginia League | , |