exactmatch =
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League =
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There are 3190 matches found
| Name | BBrefID | Year | Span | Games | Team | League | Location |
| Ed Abbaticchio | abbati001edw | 1910 | Pittsburgh | National League | Pittsburgh, PA | ||
| Ed Abbaticchio | abbati001edw | 1910 | Boston | National League | Boston, MA | ||
| Frank Abbott | abbott002fra | 1910 | Pasadena Silk Sox | Southern California Trolley League | , | ||
| Fred Abbott | abbott002har | 1910 | 90 g. | Toledo Mud Hens | American Association | , | |
| Mickey Abbott | 1910 | Lynn Shoemakers | New England League | , | |||
| Ody Abbott | abbott001ody | 1910 | 105 g. | New Castle Nocks | Ohio-Pennsylvania League | , | |
| Ody Abbott | abbott001ody | 1910 | 9/10-10/15 | St. Louis | National League | St. Louis, MO | |
| Paine Abbott | 1910 | 30 ab | Salina Trade Winners | Central Kansas League | , | ||
| Thomas Abercombie | 1910 | 51 g. | Spartanburg Spartans | Carolina Association | , | ||
| Harry Ables | ables-001har | 1910 | 38 g. | San Antonio Bronchos | Texas League | , | |
| Bill Abstein | abstei001wil | 1910 | 118 g. | Jersey City Skeeters | Eastern League | , | |
| Bill Abstein | abstei001wil | 1910 | - 6/2 | 25 g. | St. Louis | American League | St. Louis, MO |
| Leo Accorsini | accors001leo | 1910 | Johnson City Soldiers | Southeastern League | , | ||
| Ackerman | 1910 | 13 g. | Willimantic Colts | Connecticut Association | , | ||
| Robert Ackerman | adler-001rob | 1910 | 51 g. | Harrisburg Senators | Tri-State League | , | |
| Benjamin Acock | 1910 | 100 g. | Hutchinson Salt Packers | Kansas State League | , | ||
| Benjamin Acock | 1910 | 18 g. | Omaha Rourkes | Western League | , | ||
| Adams | 1910 | Chehalis Gophers | Washington State League | , | |||
| Adams | 1910 | Montesano Farmers | Washington State League | , | |||
| Adams | 1910 | 63 g. | Cadillac Chiefs | Michigan State League | , | ||
| Milton Adams | adams-001cly | 1910 | 30 g. | Dayton Veterans | Central League | , | |
| Rick Adams | adams-001reu | 1910 | 30 g. | Denver Grizzlies | Western League | , | |
| Adamson | 1910 | no g. | Nashville Volunteers | Southern Association | , | ||
| Adamson | 1910 | Meridian White Ribbons | Cotton States League | , | |||
| Max Addington | 1910 | 112 g. | Corpus Christi Pelicans | Southwest Texas League | , | ||
| Robert Adler | 1910 | 51 g. | Harrisburg Senators | Tri-State League | , | ||
| Joe Agan | agan--001jos | 1910 | Rochester Roosters | Minnesota-Wisconsin League | , | ||
| Joseph Agler | 1910 | 144 g. | Newark Indians | Eastern League | , | ||
| John Agnew | 1910 | 55 g. | York White Roses | Tri-State League | , | ||
| John Agnew | 1910 | Lancaster Red Roses | Tri-State League | , | |||
| Samuel Agnew | 1910 | 15 g. | Topeka Jayhawks | Western League | , | ||
| Ahearn | 1910 | 14 g. | Chillicothe Infants | Ohio State League | , | ||
| Walter Ahearn | ahearn001wal | 1910 | 87 g. | Waterbury Finnegans | Connecticut State League | , | |
| Arthur Ahring | 1910 | Keokuk Indians | Central Association | , | |||
| Arthur Ahring | 1910 | Ottumwa Packers | Central Association | , | |||
| Arthur Ahring | 1910 | Kewanee Boilermakers | Central Association | , | |||
| Eddie Ainsmith | ainsmi001edw | 1910 | Lawrence Colts | New England League | , | ||
| Eddie Ainsmith | ainsmi001edw | 1910 | 8/9- | 33 g. | Washington | American League | Washington, DC |
| Raleigh Aitchison | aitchi001ral | 1910 | 43 g. | Wichita Jobbers | Western League | , | |
| Albert Akers | 1910 | 10 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| Albert Akers | 1910 | 10 g. | Kearney Kapitalists | Nebraska State League | , | ||
| Charles Alberts | 1910 | 32 g. | Fort Wayne Billikens | Central League | , | ||
| Cy Alberts | albert001fre | 1910 | 33 g. | Terre Haute Stags | Central League | , | |
| Cy Alberts | albert001fre | 1910 | 9/17-10/12 | St. Louis | National League | St. Louis, MO | |
| John Alcock | alcock001joh | 1910 | Mobile Sea Gulls | Southern Association | , | ||
| John Alcock | alcock001joh | 1910 | Chattanooga Lookouts | Southern Association | , | ||
| Dallas Alderman | alderm001dal | 1910 | 37 g. | Sioux City Packers | Western League | , | |
| Bill Alexander | alexan005wil | 1910 | 102 g. | San Antonio Bronchos | Texas League | , | |
| Frank Allen | 1910 | 50 g. | Memphis Turtles | Southern Association | , | ||
| Whitey Alpermann | alperm001cha | 1910 | 149 g. | Rochester Bronchos | Eastern League | , | |
| Joseph Altman | altman001jos | 1910 | 141 g. | Memphis Turtles | Southern Association | , | |
| James Alward | 1910 | +8/14+ | Canton-Siebers | Independent | , | ||
| Rex Ames | 1910 | 13 g. | San Francisco Seals | Pacific Coast League | , | ||
| Anderson | 1910 | 24 g. | Reading Pretzels | Tri-State League | , | ||
| Anderson | 1910 | 14 g. | Lancaster Lanks | Ohio State League | , | ||
| Anderson | 1910 | 12 g. | Jackson Tigers | Cotton States League | , | ||
| Anderson | 1910 | Holland Wooden Shoes | Michigan State League | , | |||
| Anderson | 1910 | 16 g. | Middletown Jewels | Connecticut Association | , | ||
| Anderson | 1910 | Norwich Bonbons/Meriden Doublins | Connecticut Association | , | |||
| A. Anderson | 1910 | 109 g. | Beeville Orange Growers | Southwest Texas League | , | ||
| Andy Anderson | anders003and | 1910 | 34 g. | Montesano Farmers | Washington State League | , | |
| Archibald Anderson | 1910 | 65 g. | Winnipeg Maroons | Western Canada League | , | ||
| Archibald Anderson | 1910 | Medicine Hat Mad Hatters/Saskatoon Berrypickers | Western Canada League | , | |||
| Fred Anderson | anders008joh | 1910 | Sacramento Sacts | Pacific Coast League | , | ||
| Goat Anderson | anders003edw | 1910 | 48 g. | Rochester Bronchos | Eastern League | , | |
| William Anderson | anders003wil | 1910 | 84 g, | Haverhill Hustlers | New England League | , | |
| Wingo Anderson | anders001win | 1910 | 4/16-6/1 | Cincinnati | National League | Cincinnati, OH | |
| Wingo Anderson | anders001win | 1910 | Dayton Veterans | Central League | , | ||
| Frank Andrada | 1910 | 30 g. | Roanoke Tigers | Virginia League | , | ||
| Leo Angermeier | 1910 | 127 g. | Frankfort Statesmen | Blue Grass League | , | ||
| Louis Angermeier | 1910 | 86 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | ||
| Bill Annis | annis-001wil | 1910 | 72 g. | Falls City Colts | Missouri-Iowa-Nebraska-Kansas League | , | |
| John Anthony | anthon002joh | 1910 | 130 g. | Worcester Busters | New England League | , | |
| Fred Applegate | appleg002fre | 1910 | 28 g. | Wilkes-Barre Barons | New York State League | , | |
| Cleveland Arbogast | arboga001cle | 1910 | 89 g. | Columbus Senators | American Association | , | |
| Frank Archer | 1910 | Davenport Prodigals | Illinois-Indiana-Iowa League | , | |||
| Jimmy Archer | archer001jam | 1910 | 98 g. | Chicago | National League | Chicago, IL | |
| Harry Armbruster | armbru001har | 1910 | 133 g. | Syracuse Stars | New York State League | , | |
| Cecil Armstrong | armstr001cec | 1910 | 30 g. | New Bedford Whalers | New England League | , | |
| J. K. Armstrong | 1910 | Ellsworth Blues | Central Kansas League | , | |||
| Lou Armstrong | armstr001lou | 1910 | Wellington Dukes | Kansas State League | , | ||
| Ed Ashenbach | ashenb001edw | 1910 | Syracuse Stars | New York State League | , | ||
| Charles Asher | asher-001edw | 1910 | 47 g. | Terre Haute Stags | Central League | , | |
| Charles Asher | asher-001edw | 1910 | Dayton Veterans | Central League | , | ||
| John Ashley | ashley001joh | 1910 | Troy Trojans | New York State League | , | ||
| Jack Ashton | ashton001joh | 1910 | 32 g. | Shreveport Pirates | Texas League | , | |
| Tom Asmussen | asmuss001tho | 1910 | Peoria Distillers | Illinois-Indiana-Iowa League | , | ||
| Tommy Atkins | atkins001fra | 1910 | - 9/28 | 15 g. | Philadelphia | American League | Philadelphia, PA |
| Bert Atkinson | 1910 | 57 g. | Seward Statesmen | Nebraska State League | , | ||
| Ernest Atwell | 1910 | 15 g. | Winchester Hustlers | Blue Grass League | , | ||
| Ernest Atwell | 1910 | Muscatine Pearl Finders | Northern Association | , | |||
| Ike Austin | austin000ike | 1910 | ButteCity | , | |||
| Jimmy Austin | austin002jam | 1910 | 133 g. | New York | American League | New York, NY | |
| Chick Autry | autry-001wil | 1910 | 154 g. | St. Paul Saints | American Association | , | |
| Clifford Averett | 1910 | 25 g. | Spartanburg Spartans | Carolina Association | , | ||
| Aaron Ayers | 1910 | 10/10- | U. S. Army | , | |||
| Charlie Babb | babb--001cha | 1910 | 25 g. | Memphis Turtles | Southern Association | , | |
| Alex Backof | backof001ale | 1910 | Freeport Pretzels | Northern Association | , | ||
| Alex Backof | backof001ale | 1910 | 29 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | |
| George Backus | backus001mel | 1910 | 84 g. | Newton Railroaders | Kansas State League | , | |
| George Backus | backus001mel | 1910 | +10/1+ | Winfield KS | Independent | , | |
| M. R. Bacom | 1910 | Whittier | , | ||||
| M. R. Bacom | 1910 | Oxnard | California Winter League | , | |||
| Frederick Badel | badel-001fre | 1910 | 58 g. | Saginaw Wa-was | Southern Michigan League | , | |
| Art Bader | bader-001art | 1910 | 70 g. | Des Moines Boosters | Western League | , | |
| Guy Badger | 1910 | 57 g. | Shelbyville/Maysville Rivermen | Blue Grass League | , | ||
| Guy Badger | 1910 | Lexington Colts | Blue Grass League | , | |||
| Rudy Baerwald | baerwa001rud | 1910 | 139 g. | Memphis Turtles | Southern Association | , | |
| Arch Bailey | 1910 | Umpire | Texas League | , | |||
| Harry Bailey | 1910 | 88 g. | Lancaster Red Roses | Tri-State League | , | ||
| Frank Baillies | 1910 | 45 g. | Winona Pirates | Minnesota-Wisconsin League | , | ||
| Frank Bair | 1910 | 56 g. | Youngstown Steelmen | Ohio-Pennsylvania League | , | ||
| Harry Baird | 1910 | 43 g. | Newton Railroaders | Kansas State League | , | ||
| Harry Baird | 1910 | 28 ab | Manhattan Maroons | Central Kansas League | , | ||
| John Baker | baker-001joh | 1910 | St. Joseph Drummers | Western League | , | ||
| Tracy Baker | baker-001tra | 1910-11 | U. Washington | College | , | ||
| Michael Balenti | 1910 | 113 g. | Savannah Indians | South Atlantic League | , | ||
| Monte Bales | 1910 | 37 g. | Spartanburg Spartans | Carolina Association | , | ||
| Jim Ball | ball--002jam | 1910 | 74 g. | Springfield Ponies | Connecticut State League | , | |
| Neal Ball | ball--001cor | 1910 | 54 g. | Cleveland | American League | Cleveland, OH | |
| L. E. Ballew | ballew001l-- | 1910 | +8/3+ | Waco Navigators | Texas League | , | |
| Robert Bandy | 1910 | 62 g. | Oklahoma City Indians | Texas League | , | ||
| Cecil Bankhead | bankhe001cec | 1910 | 49 g. | Lyons Lions | Kansas State League | , | |
| Jack Bankhead | 1910 | 275 ab | Ellsworth Blues | Central Kansas League | , | ||
| Alexander Bannister | 1910 | 43 g. | Waterbury Finnegans | Connecticut State League | , | ||
| Jimmy Bannon | bannon001jam | 1910 | Lawrence Colts | New England League | , | ||
| Frank Barber | barber001fra | 1910 | 43 g. | Bartlesville Boosters | Western Association | , | |
| Frank Barber | barber001fra | 1910 | 31 g. | Topeka Jayhawks | Western League | , | |
| John Barkwell | 1910 | 117 g. | Terre Haute Stags | Central League | , | ||
| Miles Barlow | barlow001mil | 1910 | Freeport Pretzels | Northern Association | , | ||
| Jack Barnett | burnet005joh | 1910 | 131 g. | Montgomery Climbers | Southern Association | , | |
| Michael Barney | 1910 | 49 g. | Winchester Hustlers | Blue Grass League | , | ||
| Charles Barngrover | 1910 | 1 g. | Quincy Vets | Central Association | , | ||
| Charles Barngrover | 1910 | +6/29+ | 12 g. | La Crosse Outcasts | Minnesota-Wisconsin League | , | |
| Charles Barngrover | 1910 | Rochester Roosters | Minnesota-Wisconsin League | , | |||
| Frederick Barnicle | 1910 | preseason | Providence Grays | Eastern League | , | ||
| Frederick Barnstead | barnst001fre | 1910 | Lethbridge Miners | Western Canada League | , | ||
| Frederick Barnstead | barnst001fre | 1910 | Edmonton Eskimos | Western Canada League | , | ||
| Jimmy Barrett | barret003jam | 1910 | 51 g. | Milwaukee Brewers | American Association | , | |
| Cuke Barrows | barrow001rol | 1910 | 6 g. | Chicago | American League | Chicago, IL | |
| Thomas Barry | barry-002tom | 1910 | Univ. Wisconsin | College | , | ||
| John Barthold | bartho001joh | 1910 | 39 g. | Reading Pretzels | Tri-State League | , | |
| John Barthold | bartho001joh | 1910 | Harrisburg Senators | Tri-State League | , | ||
| Bartlett | 1910 | 1 g. | Vernon Tigers | Pacific Coast League | , | ||
| L. F. Bartlett | 1910 | 45 g. | Oshkosh Indians | Wisconsin-Illinois League | , | ||
| Bill Bartley | bartle001wil | 1910 | 23 g. | Jersey City Skeeters | Eastern League | , | |
| Henry Bartley | bartle001h-- | 1910 | 59 g. | Superior Brickmakers | Nebraska State League | , | |
| Charles Bartliff | 1910 | Aberdeen Black Cats | Washington State League | , | |||
| Charles Bartliff | 1910 | 20 g. | Milwaukee Brewers | American Association | , | ||
| Harry Barton | barton001har | 1910 | 88 g. | Reading Pretzels | Tri-State League | , | |
| James Barton | barton001jam | 1910 | New Castle Nocks | Ohio-Pennsylvania League | , | ||
| James Baskette | 1910 | 32 g. | Toledo Mud Hens | American Association | , | ||
| John Bastian | 1910 | 110 g. | Reading Pretzels | Tri-State League | , | ||
| Ward Bastian | bastia001war | 1910 | 134 g. | Utica Utes | New York State League | , | |
| Quait Bateman | batema002h-- | 1910 | Monmouth Browns | Central Association | , | ||
| Quait Bateman | batema002h-- | 1910 | Burlington Pathfinders | Central Association | , | ||
| Jacob Bauer | bauer-001jac | 1910 | 106 g. | St. Joseph Drummers | Western League | , | |
| Louis Bauer | 1910 | 31 g. | Birmingham Barons | Southern Association | , | ||
| Charles Baumann | 1910 | 92 g. | New Bedford Whalers | New England League | , | ||
| Walter Baumann | 1910 | 113 g. | Green Bay Bays | Wisconsin-Illinois League | , | ||
| Charles Baumgartner | 1910 | 116 g. | Bay City Rice Eaters | Southwest Texas League | , | ||
| Moose Baxter | baxter001joh | 1910 | 93 g. | Edmonton Eskimos | Western Canada League | , | |
| Jimmy Beard | beard-001jam | 1910 | 72 g. | Frankfort Statesmen | Blue Grass League | , | |
| Frank Beatty | 1910 | 15 g. | McKeesport Tubers | Ohio-Pennsylvania League | , | ||
| John Beatty | 1910 | 83 g. | Winnipeg Maroons | Western Canada League | , | ||
| Frank Beaumont | beaumo001fra | 1910 | 10 g. | New Britain Perfectos | Connecticut State League | , | |
| Austin Beaver | 1910 | 11 g. | Macomb Potters | Illinois-Missouri League | , | ||
| Ray Beaver | 1910 | 28 g. | Auburn Athletics | Missouri-Iowa-Nebraska-Kansas League | , | ||
| Zinn Beck | 1910 | 45 g. | Columbia Gamecocks | South Atlantic League | , | ||
| Zinn Beck | 1910 | Decatur Commodores | Northern Association | , | |||
| Beals Becker | becker001dav | 1910 | 80 g. | New York | National League | New York, NY | |
| Edward Becker | 1910 | Fond du Lac Giants | Wisconsin-Illinois League | , | |||
| Jake Beckley | beckle001jac | 1910 | 70 g. | Bartlesville Boosters | Western Association | , | |
| Jake Beckley | beckle001jac | 1910 | 63 g. | Topeka Jayhawks | Western League | , | |
| Beeker | 1910 | +5/5+ | Fond du Lac Giants | Wisconsin-Illinois League | , | ||
| William Beeker | beeker001wil | 1910 | Shelbyville/Maysville Rivermen | Blue Grass League | , | ||
| Neal Begley | 1910 | 11 g. | Oklahoma City Indians | Texas League | , | ||
| Charles Behrendt | 1910 | 15 g. | Holland Wooden Shoes | Michigan State League | , | ||
| Billy Belden | belden001wil | 1910 | 80 g. | New Haven Prairie Hens | Connecticut State League | , | |
| Bell | 1910 | 18 g. | Raleigh Red Birds | Eastern Carolina League | , | ||
| Lynn Bell | 1910 | 132 g. | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| Ralph Bell | 1910 | 92 g. | Moose Jaw Robin Hoods | Western Canada League | , | ||
| Theron Bell | bell--001t-- | 1910 | 112 g. | Houston Buffaloes | Texas League | , | |
| Frank Belt | belt--001fra | 1910 | 81 g. | Keokuk Indians | Central Association | , | |
| Oren Beltzer | beltze001buc | 1910 | 105 g. | Grand Island Collegians | Nebraska State League | , | |
| Charles Bemiss | bemis-001cha | 1910 | , | ||||
| John Bender | bender001joh | 1910-11 | Saint Louis U. | College | , | ||
| Simon Bennett | bennet001si- | 1910 | Medicine Hat Mad Hatters/Saskatoon Berrypickers | Western Canada League | , | ||
| Walter Bennett | bennet002wal | 1910 | Winston-Salem Twins | Carolina Association | , | ||
| John Benny | benny-001joh | 1910 | Charleston Senators | Virginia Valley League | , | ||
| Helmer Benrud | 1910 | 117 g. | Eau Claire Commissioners | Minnesota-Wisconsin League | , | ||
| Elmer Bensen | benson001elm | 1910 | 126 g. | Columbus Foxes | South Atlantic League | , | |
| William Bentley | bentle001wil | 1910 | 111 g. | Greensboro Champs | Carolina Association | , | |
| Emil Bentz | 1910 | Racine Belles | Wisconsin-Illinois League | , | |||
| Emil Bentz | 1910 | Wausau WI | Independent | , | |||
| Joe Benz | benz--001jos | 1910 | Des Moines Boosters | Western League | , | ||
| Joe Benz | benz--001jos | 1910 | 26 g. | Green Bay Bays | Wisconsin-Illinois League | , | |
| Sutorious Benz | 1910 | 32 g. | Danville Speakers | Illinois-Indiana-Iowa League | , | ||
| Pat Bergan | bergen000pat | 1910 | Alden | Susquehanna | , | ||
| Joseph Berger | 1910 | 146 g. | Mobile Sea Gulls | Southern Association | , | ||
| John Berkel | 1910 | 47 g. | Atlanta Crackers | Southern Association | , | ||
| Bill Bernhard | bernha001wil | 1910 | 28 g. | Nashville Volunteers | Southern Association | , | |
| Claude Berry | berry-001cla | 1910 | 152 g. | San Francisco Seals | Pacific Coast League | , | |
| Harry Berry | berry-002har | 1910 | 39 g. | Great Bend Millers | Kansas State League | , | |
| Harry Berry | berry-002har | 1910 | 24 g. | McLeansboro Billikens | Kentucky-Illinois-Tennessee League | , | |
| Bob Berryhill | berryh001rob | 1910 | Newark Newks | Ohio State League | , | ||
| James Bertwhistle | bertwh001jam | 1910 | 116 g. | Fall River Indians | New England League | , | |
| Bob Bescher | besche001rob | 1910 | 150 g. | Cincinnati | National League | Cincinnati, OH | |
| Frank Betcher | betche001fra | 1910 | 5/21-10/13 | St. Louis | National League | St. Louis, MO | |
| Harry Betts | betts-002har | 1910 | 47 g. | Yazoo City Zoos | Cotton States League | , | |
| Carlton Beusse | beusse001car | 1910 | Greensboro Champs | Carolina Association | , | ||
| Fred Beusse | 1910 | Greensboro Champs | Carolina Association | , | |||
| Lorenzo Bevan | 1910 | 31 g. | Winona Pirates | Minnesota-Wisconsin League | , | ||
| Lorenzo Bevan | 1910 | Rochester Roosters | Minnesota-Wisconsin League | , | |||
| Joseph Bewer | bewer-001jos | 1910 | 131 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | |
| Louis Bierbauer | 1910 | 64 g. | Erie Sailors | Ohio-Pennsylvania League | , | ||
| William Bierhalter | 1910 | Umpire | American Association | , | |||
| John Bierkotte | 1910 | 98 g. | Augusta Tourists | South Atlantic League | , | ||
| Fred Bierman | bierma001fre | 1910 | 83 g. | Jacksonville Jays | South Atlantic League | , | |
| Clarence Biersdorfer | 1910 | 40 g. | Des Moines Boosters | Western League | , | ||
| Frank Bigbie | bigbie001fra | 1910 | 56 g. | Raleigh Red Birds | Eastern Carolina League | , | |
| Frank Bigbie | bigbie001fra | 1910 | 33 g. | Spartanburg Spartans | Carolina Association | , | |
| Frank Bigbie | bigbie001fra | 1910 | Richmond Colts | Virginia League | , | ||
| Frank Bigbie | bigbie001fra | 1910 | Norfolk Tars | Virginia League | , | ||
| Joseph Bills | bills-001jos | 1910 | 66 g. | Wilkes-Barre Barons | New York State League | , | |
| Rivington Bisland | bislan001riv | 1910 | 61 g. | Wheeling Stogies | Central League | , | |
| Erle Bitting | 1910 | 26 g. | Mansfield Reformers | Ohio-Pennsylvania League | , | ||
| Erle Bitting | 1910 | 13 g. | Brandon Angels | Western Canada League | , | ||
| George Bittrolff | bittro001geo | 1910 | 38 g. | Mobile Sea Gulls | Southern Association | , | |
| Lena Blackburne | blackb002rus | 1910 | 4/14- | 75 g. | Chicago | American League | Chicago, IL |
| Ellison Blackstone | 1910 | 112 g. | Greenville Spinners | Carolina Association | , | ||
| Harry Blake | blake-001har | 1910 | Portsmouth Cobblers | Ohio State League | , | ||
| William Blake | 1910 | 130 g. | Galesburg Pavers | Central Association | , | ||
| William Blake | 1910 | Kewanee Boilermakers | Central Association | , | |||
| John Blakeney | 1910 | 65 g. | Bay City Rice Eaters | Southwest Texas League | , | ||
| Foster Blanchard | blanch001fos | 1910 | 33 g. | Trenton Tigers | Tri-State League | , | |
| Clay Blancke | 1910 | 27 g. | Duluth White Sox | Minnesota-Wisconsin League | , | ||
| Fred Blanding | blandi001fre | 1910 | 45 g. | San Antonio Bronchos | Texas League | , | |
| Fred Blanding | blandi001fre | 1910 | 9/15- | 6 g. | Cleveland | American League | Cleveland, OH |
| Arch Blasingim | blasin001a-- | 1910 | no g. | Fort Worth Panthers | Texas League | , | |
| Ray Blausser | 1910 | Springfield Senators | Illinois-Indiana-Iowa League | , | |||
| Ray Blausser | 1910 | Danville Speakers | Illinois-Indiana-Iowa League | , | |||
| Roy Blausser | 1910 | 138 g. | Galesburg Pavers | Central Association | , | ||
| Elmer Bliss | bliss-001elm | 1910 | 19 g. | Binghamton Bingoes | New York State League | , | |
| George Block | 1910 | 108 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | ||
| Charles Bloomer | 1910 | local amat & semi-pros | , | ||||
| Barney Blue | 1910 | +5/3+ | Waco Navigators | Texas League | , | ||
| Bert Blue | blue--001bir | 1910 | no g. | Mobile Sea Gulls | Southern Association | , | |
| James Bluejacket | 1910 | 38 g. | Keokuk Indians | Central Association | , | ||
| George Boardman | boardm001geo | 1910 | 192 g. | Sacramento Sacts | Pacific Coast League | , | |
| Fred Bockewitz | 1910 | 110 g. | Great Bend Millers | Kansas State League | , | ||
| Oscar Bockewitz | 1910 | 111 g. | Superior Brickmakers | Nebraska State League | , | ||
| Oscar Boettiger | boetti001osc | 1910 | 33 g. | Aberdeen Black Cats | Washington State League | , | |
| Richard Boettiger | boetti001ric | 1910 | 42 g. | Aberdeen Black Cats | Washington State League | , | |
| Patrick Bohannon | bohann001pat | 1910 | 86 g. | Frankfort Statesmen | Blue Grass League | , | |
| Patrick Bohannon | bohann001pat | 1910 | 20 g. | Louisville Colonels | American Association | , | |
| George Boice | 1910 | 19 g. | Toledo Mud Hens | American Association | , | ||
| George Boice | 1910 | 10 g. | Portland Beavers | Pacific Coast League | , | ||
| William Bokenfohr | 1910 | 13 g. | Yazoo City Zoos | Cotton States League | , | ||
| Patrick Boland | boland001pat | 1910 | 12 g. | Waterbury Finnegans | Connecticut State League | , | |
| John Bolin | bolin-003joh | 1910 | Quincy Vets | Central Association | , | ||
| Carl Bond | bond--001car | 1910 | 92 g. | Wausau Lumberjacks | Minnesota-Wisconsin League | , | |
| Harold Bond | bond--001har | 1910-12 | , | ||||
| Jack Bonner | bonner001joh | 1910 | 117 g. | Norfolk Tars | Virginia League | , | |
| Joseph Bonner | 1910 | 13 g. | Rocky Mount Railroaders | Eastern Carolina League | , | ||
| Orville Boothby | 1910 | Fall River Indians | New England League | , | |||
| Orville Boothby | 1910 | 17 g. | Eau Claire Commissioners | Minnesota-Wisconsin League | , | ||
| Orville Boothby | 1910 | Elgin Kittens | Northern Association | , | |||
| Raymond Borleske | 1910 | 37 g. | Brandon Angels | Western Canada League | , | ||
| Jim Bouldin | bouldi001jam | 1910 | +7/27+ | Raton NV | Independent | , | |
| Benny Bowcock | bowcoc001ben | 1910 | 111 g. | Fall River Indians | New England League | , | |
| Bowen | 1910 | 7 g. | Kalamazoo Kazoos | Southern Michigan League | , | ||
| Andrew Bowen | bowen-001and | 1910 | 112 g. | Portsmouth Truckers/Petersburg Goobers | Virginia League | , | |
| Cy Bowen | bowen-001sut | 1910 | 22 g. | Grand Rapids Raiders | Central League | , | |
| Frank Bowerman | bowerm001fra | 1910 | 91 g. | Indianapolis Indians | American Association | , | |
| Bowers | 1910 | 27 g. | New London Whalers | Connecticut Association | , | ||
| Bowers | 1910 | Aberdeen SD | Independent | , | |||
| George Bowers | bowers001geo | 1910 | 35 g. | Reading Pretzels | Tri-State League | , | |
| George Bowers | bowers001geo | 1910 | Atlantic City NJ | Independent | , | ||
| George Bowers | bowers001geo | 1910 | Altoona Rams | Tri-State League | , | ||
| Howard Bowers | 1910 | Lancaster Red Roses | Tri-State League | , | |||
| John Bowers | 1910 | no g. | Lancaster Red Roses | Tri-State League | , | ||
| Red Bowser | bowser001jam | 1910 | 110 g. | Flint Vehicles | Southern Michigan League | , | |
| Red Bowser | bowser001jam | 1910 | 9/13 | Chicago | American League | Chicago, IL | |
| Ray Boyd | boyd--002ray | 1910 | 44 g. | Ottumwa Packers | Central Association | , | |
| Ray Boyd | boyd--002ray | 1910 | 9/24-10/2 | St. Louis | American League | St. Louis, MO | |
| Frank Boyle | boyle-001fra | 1910 | Waterloo Boosters | Illinois-Indiana-Iowa League | , | ||
| George Boyle | 1910-11 | Alle.-Balliet AC | Independent | , | |||
| Grover Boyle | boyle-001gro | 1910 | 26 g. | Aberdeen Black Cats | Washington State League | , | |
| Joseph Boyle | 1910 | Kankakee Kays | Northern Association | , | |||
| Joseph Boyle | 1910 | 33 g. | Haverhill Hustlers | New England League | , | ||
| Clarence Bradshaw | 1910 | 45 g. | Shenandoah Pin Rollers | Missouri-Iowa-Nebraska-Kansas League | , | ||
| Marion Bradshaw | 1910 | Hiram College | College | , | |||
| Marion Bradshaw | 1910 | Pittsburgh | National League | Pittsburgh, PA | |||
| Miles Bradshaw | 1910 | 40 g. | Kewanee Boilermakers | Central Association | , | ||
| Miles Bradshaw | 1910 | Burlington Pathfinders | Central Association | , | |||
| King Brady | brady-005jam | 1910 | Wilkes-Barre Barons | New York State League | , | ||
| Edward Brahic | brahic000edd | 1910 | Richmond Pioneers | Blue Grass League | , | ||
| Fred Bramble | 1910 | 73 g. | Flint Vehicles | Southern Michigan League | , | ||
| Charles Brammell | 1910 | 87 g. | Lyons Lions | Kansas State League | , | ||
| Charles Brand | 1910 | 121 g. | Ottumwa Packers | Central Association | , | ||
| Charles Brand | 1910 | Galesburg Pavers | Central Association | , | |||
| Willie Brandt | brandt002wil | 1910 | , | ||||
| Roy Brashear | brashe002roy | 1910 | 223 g. | Vernon Tigers | Pacific Coast League | , | |
| Carl Braun | 1910 | 94 g. | Galveston Sand Crabs | Texas League | , | ||
| Otis Brazell | brazze001oti | 1910 | 37 g. | Charlotte Hornets | Carolina Association | , | |
| Herbert Bredenhagen | 1910 | 107 g. | Appleton Papermakers | Wisconsin-Illinois League | , | ||
| Henry Breen | 1910 | 130 g. | Portsmouth Cobblers | Ohio State League | , | ||
| Bill Breitenstein | breite001wil | 1910 | U. of South Car. | College | , | ||
| Bill Breitenstein | breite001wil | 1910 | 87 g. | Columbia Gamecocks | South Atlantic League | , | |
| Theodore Breitenstein | breite001the | 1910 | New Orleans Pelicans | Southern Association | , | ||
| Ad Brennan | brenna001add | 1910 | 5/19- | 19 g. | Philadelphia | National League | Philadelphia, PA |
| Edmund Brennan | 1910 | 99 g. | Terre Haute Stags | Central League | , | ||
| John Brennan | 1910 | Edmonton Eskimos | Western Canada League | , | |||
| William Brennan | brenna006wil | 1910 | Richmond Colts | Virginia League | , | ||
| Brent | brent-007--- | 1910 | 103 g. | Winston-Salem Twins | Carolina Association | , | |
| Edward Breyer | 1910 | 141 g. | Lansing Senators | Southern Michigan League | , | ||
| Mike Breyette | breyet001mic | 1910 | 126 g. | Eau Claire Commissioners | Minnesota-Wisconsin League | , | |
| Bridges | 1910 | 11 g. | Clarksville Volunteers | Kentucky-Illinois-Tennessee League | , | ||
| A. Frank Bridges | 1910 | Joplin Miners | Western Association | , | |||
| A. Frank Bridges | 1910 | Guthrie Senators | Western Association | , | |||
| Marvin Bridges | bridge002mar | 1910 | +8/11-8/16+ | Harrisburg Senators | Tri-State League | , | |
| Marvin Bridges | bridge002mar | 1910 | Clarksville Volunteers | Kentucky-Illinois-Tennessee League | , | ||
| Thomas Bridges | 1910 | 20 g. | New Bedford Whalers | New England League | , | ||
| Joseph Briger | 1910 | +5/23+ | 93 g. | Albany Senators | New York State League | , | |
| Joseph Briger | 1910 | +7/8-9/17+ | Wilkes-Barre Barons | New York State League | , | ||
| Joseph Briggs | briggs002jos | 1910 | 197 g. | Sacramento Sacts | Pacific Coast League | , | |
| William Brinker | brinke001wil | 1910 | U. Washington | College | , | ||
| William Brinker | brinke001wil | 1910 | Vancouver Beavers | Northwestern League | , | ||
| Albert Briseno | brisen001alb | 1910 | Long Beach | Southern California Trolley League | , | ||
| Andrew Briswalter | 1910 | 15 g. | Los Angeles Angels | Pacific Coast League | , | ||
| Arlington Britton | 1910 | 56 g. | Williamsport Millionaires | Tri-State League | , | ||
| William Brittsan | britts001w-- | 1910 | 25 g. | Lancaster Red Roses | Tri-State League | , | |
| Matt Broderick | broder001mat | 1910 | 110 g. | Erie Sailors | Ohio-Pennsylvania League | , | |
| John Brogan | 1910 | 17 g. | Lethbridge Miners | Western Canada League | , | ||
| Albert Bromwich | 1910 | 68 g. | Madison Senators | Wisconsin-Illinois League | , | ||
| Albert Bromwich | 1910 | Freeport Pretzels | Northern Association | , | |||
| Richard Brookins | 1910 | Regina Bone Pilers | Western Canada League | , | |||
| John Brophy | 1910 | 35 g. | Superior Brickmakers | Nebraska State League | , | ||
| Art Brouthers | brouth001art | 1910 | 126 g. | Elmira Colonels | New York State League | , | |
| Bob Brown | brown-027rob | 1910 | 47 g. | Vancouver Beavers | Northwestern League | , | |
| Ed Brown | 1910 | 105 g. | Columbus Discoverers | Nebraska State League | , | ||
| Elmer Brown | 1910 | 28 g. | Akron Champs | Ohio-Pennsylvania League | , | ||
| Loren Brown | brown-001lor | 1910 | 85 g. | El Reno Packers | Western Association | , | |
| Loren Brown | brown-001lor | 1910 | 15 g. | Topeka Jayhawks | Western League | , | |
| Nicol Brown | brown-001dru | 1910 | 146 g. | Vernon Tigers | Pacific Coast League | , | |
| Tom Brown | brown-012tho | 1910 | +7/25+ | Umpire | New York State League | , | |
| Frank Browning | browni001fra | 1910 | 28 g. | San Francisco Seals | Pacific Coast League | , | |
| Frank Browning | browni001fra | 1910 | 4/16- | 11 g. | Detroit | American League | Detroit, MI |
| Claude Brumley | 1910 | +8/24+ | Mayfield KS | Independent | , | ||
| George Bubser | bubser001geo | 1910 | Rockford Reds | Wisconsin-Illinois League | , | ||
| Howard Buck | 1910 | Amherst College | College | , | |||
| Howard Buck | 1910 | 45 g. | Troy Trojans | New York State League | , | ||
| Fred Buckholz | 1910 | 25 g. | Akron Champs | Ohio-Pennsylvania League | , | ||
| Fred Buckholz | 1910 | Freeport Pretzels | Northern Association | , | |||
| Jesse Buckles | 1910 | 17 g. | Holyoke Papermakers | Connecticut State League | , | ||
| Arthur Bues | 1910 | Racine Belles | Wisconsin-Illinois League | , | |||
| Arthur Bues | 1910 | Minneapolis Millers | American Association | , | |||
| Alfred Bumb | 1910 | 95 g. | Great Bend Millers | Kansas State League | , | ||
| John Bunyan | bunyan001joh | 1910 | 122 g. | New Haven Prairie Hens | Connecticut State League | , | |
| Al Burch | burch-001alb | 1910 | 103 g. | Brooklyn | National League | Brooklyn, NY | |
| Lyman Burch | burch-001l-- | 1910 | 39 g. | Keokuk Indians | Central Association | , | |
| Charles Burden | 1910 | 52 g. | Winchester Hustlers | Blue Grass League | , | ||
| Joe Burg | burg--001jos | 1910 | 138 g. | Quincy Vets | Central Association | , | |
| Joe Burg | burg--001jos | 1910 | 9/26-10/12 | Boston | National League | Boston, MA | |
| Peter Burg | burg--001pet | 1910 | 125 g. | Lynn Shoemakers | New England League | , | |
| Sandy Burk | burk--001cha | 1910 | 49 g. | Fort Worth Panthers | Texas League | , | |
| Sandy Burk | burk--001cha | 1910 | 9/12- | 4 g. | Brooklyn | National League | Brooklyn, NY |
| Jack Burke | 1910 | 119 g. | Victoria Rosebuds | Southwest Texas League | , | ||
| Jesse Burkett | burket001jes | 1910 | 38 g. | Worcester Busters | New England League | , | |
| Oscar Burkett | 1910 | Mansfield Reformers | Ohio-Pennsylvania League | , | |||
| Fred Burnam | burnam001fre | 1910 | +6/12+ | Freeport Pretzels | Northern Association | , | |
| Powell Burnett | 1910 | , | |||||
| William Burnett | 1910 | 36 g. | Raymond Cougars | Washington State League | , | ||
| Biddy Burns | 1910 | , | |||||
| Jack Burns | burns-007joh | 1910 | , | ||||
| Joseph Burns | burns-002jos | 1910 | 6/15 | Cincinnati | National League | Cincinnati, OH | |
| Otto Burns | 1910 | 18 g. | Toledo Mud Hens | American Association | , | ||
| Otto Burns | 1910 | 117 g. | Danville Speakers | Illinois-Indiana-Iowa League | , | ||
| Lennius Burrell | burrel001len | 1910 | 167 g. | Vernon Tigers | Pacific Coast League | , | |
| Frank Burson | burson001fra | 1910 | Larned Wheat Kings | Kansas State League | , | ||
| Earl Burwell | burwel001ear | 1910 | 70 g. | Oshkosh Indians | Wisconsin-Illinois League | , | |
| Henry Busch | busch-001hen | 1910 | 119 g. | Norfolk Tars | Virginia League | , | |
| Alfred Bushey | bushey001alf | 1910 | Norfolk Tars | Virginia League | , | ||
| Alfred Bushey | bushey001alf | 1910 | Danville Red Sox | Virginia League | , | ||
| Harvey Bussey | bussey002har | 1910 | 40 g. | Danville Red Sox | Virginia League | , | |
| John Butler | butler002joh | 1910 | 65 g. | Jersey City Skeeters | Eastern League | , | |
| Kid Butler | butler007wil | 1910 | 152 g. | Toledo Mud Hens | American Association | , | |
| John Buzick | 1910 | Univ. of Illinois | College | , | |||
| John Buzick | 1910 | 8/1-9/9 | Lynn Shoemakers | New England League | , | ||
| Bill Byers | byers-002jam | 1910 | Baltimore Orioles | Eastern League | , | ||
| Will Byers | 1910 | 18 g. | Winona Pirates | Minnesota-Wisconsin League | , | ||
| Will Byers | 1910 | La Crosse Outcasts | Minnesota-Wisconsin League | , | |||
| John Bynes | 1910 | Troy Trojans | New York State League | , | |||
| John Bynes | 1910 | Utica Utes | New York State League | , | |||
| Jim Byrnes | byrnes002jam | 1910 | 99 g. | Tacoma Tigers | Northwestern League | , | |
| Andrew Bzoskie | 1910 | Winona Pirates | Minnesota-Wisconsin League | , | |||
| Walter Cadman | 1910 | 101 g. | Omaha Rourkes | Western League | , | ||
| Forrest Cady | 1910 | 111 g. | Evansville River Rats | Central League | , | ||
| John Cahill | cahill001joh | 1910 | 124 g. | Wausau Lumberjacks | Minnesota-Wisconsin League | , | |
| David Calderhead | 1910 | 99 g. | Racine Belles | Wisconsin-Illinois League | , | ||
| Dave Callahan | callah002dav | 1910 | 15 g. | Toledo Mud Hens | American Association | , | |
| Dave Callahan | callah002dav | 1910 | 126 g. | Eau Claire Commissioners | Minnesota-Wisconsin League | , | |
| Dave Callahan | callah002dav | 1910 | 9/14- | 13 g. | Cleveland | American League | Cleveland, OH |
| Jim Callahan | callah004jam | 1910 | no g. | Indianapolis Indians | American Association | , | |
| Jim Callahan | callah004jam | 1910 | 141 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Eugene Calloway | callow000eug | 1910 | , | ||||
| Don Cameron | camero003don | 1910 | 174 g. | Oakland Oaks | Pacific Coast League | , | |
| Henry Camnitz | 1910 | 31 g. | Jersey City Skeeters | Eastern League | , | ||
| Bill Campbell | campbe001wil | 1910 | Montesano Farmers | Washington State League | , | ||
| C. A. Campbell | 1910 | TacpmaCourtHouse | Independent | , | |||
| Edward Campbell | 1910 | 78 g. | Pekin Celestials | Illinois-Missouri League | , | ||
| Marc Campbell | campbe002mar | 1910 | Fond du Lac Giants | Wisconsin-Illinois League | , | ||
| Sullivan Campbell | campbe001sul | 1910 | 44 g. | Fremont Pathfinders | Nebraska State League | , | |
| Vin Campbell | campbe001art | 1910 | 97 g. | Pittsburgh | National League | Pittsburgh, PA | |
| Wirt Cannell | cannel001vir | 1910 | 101 g. | Williamsport Millionaires | Tri-State League | , | |
| Joe Cantillon | cantil001jos | 1910-23 | Minneapolis | American Association | , | ||
| George Capron | capron001geo | 1910 | 35 g. | Vancouver Beavers | Northwestern League | , | |
| Ralph Capron | capron001ral | 1910 | 12 g. | Oakland Oaks | Pacific Coast League | , | |
| Chick Cargo | cargo-001cha | 1910 | 125 g. | Lynn Shoemakers | New England League | , | |
| Fred Carisch | carisc001fre | 1910 | 90 g. | Columbus Senators | American Association | , | |
| Thomas Carlin | carlin002tho | 1910 | 43 g. | Houston Buffaloes | Texas League | , | |
| Carl Carnes | 1910 | 52 g. | Wheeling Stogies | Central League | , | ||
| Carl Carnes | 1910 | 66 g. | Trenton Tigers | Tri-State League | , | ||
| Jack Carney | carney002joh | 1910 | Chicago | American League | Chicago, IL | ||
| Jack Carney | carney002joh | 1910 | U. New Hampshire | College | , | ||
| John Carney | 1910 | Tufts College | College | , | |||
| John Carney | 1910 | 126 g. | Utica Utes | New York State League | , | ||
| Charlie Carr | carr--001cha | 1910 | 157 g. | Indianapolis Indians | American Association | , | |
| Bill Carrick | carric001wil | 1910 | New Haven Prairie Hens | Connecticut State League | , | ||
| Bill Carrigan | carrig001wil | 1910 | 114 g. | Boston | American League | Boston, MA | |
| Charles Carroll | 1910 | 24 g. | Wilmington Sailors | Eastern Carolina League | , | ||
| Dick Carroll | carrol003ric | 1910 | 27 g. | Toronto Maple Leafs | Eastern League | , | |
| Frank Carroll | carrol001fra | 1910 | 97 g. | Oakland Oaks | Pacific Coast League | , | |
| Al Carson | carson001alb | 1910 | 5/6-6/12 | Chicago | National League | Chicago, IL | |
| Al Carson | carson001alb | 1910 | 40 g. | Vernon Tigers | Pacific Coast League | , | |
| Thomas Carson | carson002tho | 1910 | 86 g. | Chattanooga Lookouts | Southern Association | , | |
| Walter Cartwright | cartwr001wal | 1910 | 139 g. | Spokane Indians | Northwestern League | , | |
| Bob Caruthers | caruth001bob | 1910 | +6/17+ | Umpire | Illinois-Indiana-Iowa League | , | |
| Andrew Case | 1910 | Springfield Ponies | Connecticut State League | , | |||
| Charlie Case | case--001cha | 1910 | 35 g. | Nashville Volunteers | Southern Association | , | |
| William Case | 1910 | Springfield Ponies | Connecticut State League | , | |||
| William Case | 1910 | +9/24+ | Morrisville | Independent | , | ||
| William Case | 1910 | New Britain Perfectos | Connecticut State League | , | |||
| William Case | 1910 | Springfield Ponies | Connecticut State League | , | |||
| James Casey | casey-002jam | 1910 | , | ||||
| Patrick Casey | casey-001pat | 1910 | 130 g. | Oklahoma City Indians | Texas League | , | |
| Jay Cashion | 1910 | 21 g. | Greenville Spinners | Carolina Association | , | ||
| Howdy Cassiboine | cassib001how | 1910 | Madison Senators | Wisconsin-Illinois League | , | ||
| Cassidy | 1910 | Beloit/Chapman | Central Kansas League | , | |||
| John Castle | castle001joh | 1910 | 4/25-5/10 | Philadelphia | National League | Philadelphia, PA | |
| John Castle | castle001joh | 1910 | 83 g. | Scranton Miners | New York State League | , | |
| John Castle | castle001joh | 1910 | Troy Trojans | New York State League | , | ||
| John Castle | 1910 | 95 g. | Shenandoah Pin Rollers | Missouri-Iowa-Nebraska-Kansas League | , | ||
| James Catiz | 1910 | 22 g. | Baltimore Orioles | Eastern League | , | ||
| James Catiz | 1910 | 121 g. | Troy Trojans | New York State League | , | ||
| James Catiz | 1910 | Wilkes-Barre Barons | New York State League | , | |||
| Tom Catterson | catter001tho | 1910 | 94 g. | Lawrence Colts | New England League | , | |
| John Cavanaugh | 1910 | 77 g. | Keokuk Indians | Central Association | , | ||
| Michael Cavanaugh | cavana003mic | 1910 | Quincy Vets | Central Association | , | ||
| Michael Cavanaugh | cavana003mic | 1910 | Kewanee Boilermakers | Central Association | , | ||
| Edwin Cefalu | 1910 | 42 g. | Roanoke Tigers | Virginia League | , | ||
| Joe Cervenka | 1910 | Blytheville | Northeast Arkansas League | , | |||
| Joseph Chabek | 1910 | 34 g. | Sioux City Packers | Western League | , | ||
| Robert Chandler | chandl002rob | 1910 | 85 g. | Norfolk Tars | Virginia League | , | |
| Les Channell | channe001les | 1910 | 5/11- | 6 g. | New York | American League | New York, NY |
| Les Channell | channe001les | 1910 | Memphis Turtles | Southern Association | , | ||
| Harry Chapman | chapma002har | 1910 | 135 ab | Concordia Travelers | Central Kansas League | , | |
| Robert Chappelle | chappe001rob | 1910 | 32 g. | Albany Senators | New York State League | , | |
| Arthur Chase | 1910 | Rochester Roosters | Minnesota-Wisconsin League | , | |||
| Emile Chastant | 1910 | New Orleans S-p | Independent | , | |||
| George Chayka | 1910 | Monroe WI | Independent | , | |||
| Charlie Chech | chech-001cha | 1910 | 60 g. | St. Paul Saints | American Association | , | |
| Henry Chelette | 1910 | 51 g. | Oklahoma City Indians | Texas League | , | ||
| William Chenault | chenau001wil | 1910 | Vancouver Beavers | Northwestern League | , | ||
| William Chenault | chenau001wil | 1910 | Seattle Giants | Northwestern League | , | ||
| Laurence Cheney | cheney001lau | 1910 | 34 g. | Indianapolis Indians | American Association | , | |
| Chennoweth | 1910 | DesM-Old Taverns | Independent | , | |||
| Chennoweth | 1910 | Maryville Comets | Missouri-Iowa-Nebraska-Kansas League | , | |||
| Guy Chiesman | 1910 | Lewiston St Normal | College | , | |||
| Guy Chiesman | 1910 | Lewiston St Normal | College | , | |||
| H. B. Childers | 1910 | 14 g. | Spartanburg Spartans | Carolina Association | , | ||
| Henry Christ | 1910 | , | |||||
| John Christian | christ003j-- | 1910 | 58 g. | Oakland Oaks | Pacific Coast League | , | |
| Ralph Christopher | 1910 | 48 g. | Springfield Ponies | Connecticut State League | , | ||
| Sylvester Cierzan | 1910 | +4/22-5/20+ | Winnipeg Maroons | Western Canada League | , | ||
| Sylvester Cierzan | 1910 | 22 g. | Winona Pirates | Minnesota-Wisconsin League | , | ||
| Harlan Claflin | 1910 | 20 g. | Medicine Hat Mad Hatters/Saskatoon Berrypickers | Western Canada League | , | ||
| Harlan Claflin | 1910 | 21 g. | Spokane Indians | Northwestern League | , | ||
| Clair | 1910 | 26 g. | Columbus Discoverers | Nebraska State League | , | ||
| Clair | 1910 | 11 g. | Hastings Brickmakers | Nebraska State League | , | ||
| C. H. Clair | 1910 | 63 g. | Kewanee Boilermakers | Central Association | , | ||
| C. H. Clair | 1910 | 31 g. | Kearney Kapitalists | Nebraska State League | , | ||
| Al Clancy | clancy001alb | 1910 | , | ||||
| Bill Clancy | clancy002wil | 1910 | 107 g. | Baltimore Orioles | Eastern League | , | |
| John Clancy | 1910 | 16 g. | Fayetteville Highlanders | Eastern Carolina League | , | ||
| Charles Clapp | 1910 | 37 g. | Greensboro Champs | Carolina Association | , | ||
| Clayton Clark | 1910 | 43 g. | Waterloo Boosters | Illinois-Indiana-Iowa League | , | ||
| Harry Clark | clark-004har | 1910 | 164 g. | Milwaukee Brewers | American Association | , | |
| Jefferson Clark | 1910 | 43 g. | Monmouth Browns | Central Association | , | ||
| John Clark | clark-001jl- | 1910 | Columbia Gamecocks | South Atlantic League | , | ||
| Talton Clark | clark-001tal | 1910 | 111 g. | Superior Brickmakers | Nebraska State League | , | |
| Win Clark | clark-012wil | 1910 | 27 g. | Norfolk Tars | Virginia League | , | |
| Jesse Clarke | 1910 | Univ of Nebraska | College | , | |||
| Jesse Clarke | 1910 | Grand Island Collegians | Nebraska State League | , | |||
| Tommy Clarke | clarke001tho | 1910 | 64 g. | Cincinnati | National League | Cincinnati, OH | |
| William Clarke | clarke004wil | 1910 | Albany Senators | New York State League | , | ||
| Bill Clay | clay--002fre | 1910 | 111 g. | Trenton Tigers | Tri-State League | , | |
| William Clayton | clayto001wil | 1910 | 15 g. | Richmond Colts | Virginia League | , | |
| William Clayton | clayto001wil | 1910 | 85 g. | Reading Pretzels | Tri-State League | , | |
| William Clayton | clayto001wil | 1910 | Trenton Tigers | Tri-State League | , | ||
| James Cleary | cleary001jam | 1910 | 10 g. | Newark Indians | Eastern League | , | |
| Peter Clemens | 1910 | 74 g. | Raleigh Red Birds | Eastern Carolina League | , | ||
| Ray Clement | 1910 | 35 g. | Kalamazoo Kazoos | Southern Michigan League | , | ||
| Wally Clement | clemen001wal | 1910 | 122 g. | Jersey City Skeeters | Eastern League | , | |
| Clements | 1910 | 29 g. | Lyons Lions | Kansas State League | , | ||
| Jesse Clifton | 1910 | 105 g. | Guthrie Senators | Western Association | , | ||
| Jesse Clifton | 1910 | 15 g. | Oklahoma City Indians | Texas League | , | ||
| John Clougher | 1910 | 78 g. | Elmira Colonels | New York State League | , | ||
| Floyd Clune | 1910 | 29 g. | Bridgeport Orators | Connecticut State League | , | ||
| John Clynes | clynes001jos | 1910 | Calgary Bronchos | Western Canada League | , | ||
| John Clynes | clynes001jos | 1910 | 10/-1/2+ | San Diego | California Winter League | , | |
| Joseph Clynes | clynes001jos | 1910 | Santa Ana Walnut Growers | Southern California Trolley League | , | ||
| Andy Coakley | coakle001and | 1910 | 6/21-6/29+ | Louisville Colonels | American Association | , | |
| Andy Coakley | coakle001and | 1910 | +9/2+ | Elmira Colonels | New York State League | , | |
| John Cobb | 1910 | 167 g. | Lincoln Railsplitters | Western League | , | ||
| John Cocash | 1910 | 88 g. | Kansas City Blues | American Association | , | ||
| George Cockill | cockil002geo | 1910 | 132 g. | Montreal Royals | Eastern League | , | |
| Frank Coe | 1910 | 18 g. | St. Joseph Drummers | Western League | , | ||
| Frank Coe | 1910 | 68 g. | Sapulpa Oilers | Western Association | , | ||
| Edward Coffey | coffey001edw | 1910 | Grand Rapids Raiders | Central League | , | ||
| Edward Coffey | coffey001edw | 1910 | South Bend Bronchos | Central League | , | ||
| E. R. Coggins | 1910 | +6/18+ | 16 g. | Lynchburg Shoemakers | Virginia League | , | |
| Charles Cogswell | cogswe003cha | 1910 | Flint Vehicles | Southern Michigan League | , | ||
| Cohen | 1910 | 47 g. | Maryville Comets | Missouri-Iowa-Nebraska-Kansas League | , | ||
| George Colbert | 1910 | 25ab | Beloit/Chapman | Central Kansas League | , | ||
| Cole | 1910 | 43 g. | Macon Peaches | South Atlantic League | , | ||
| Clarence Cole | cole--002cla | 1910 | Enid Railroaders | Western Association | , | ||
| Curtis Coleman | 1910 | Tacoma Tigers | Northwestern League | , | |||
| Edward Coleman | 1910 | 60 g. | Winchester Hustlers | Blue Grass League | , | ||
| Edward Coleman | 1910 | Muscatine Pearl Finders | Northern Association | , | |||
| Cad Coles | coles-001cad | 1910 | 124 g. | Augusta Tourists | South Atlantic League | , | |
| Edgar Colgrove | 1910 | 43 g. | Victoria Rosebuds | Southwest Texas League | , | ||
| Henry Collett | 1910 | 18 g. | Traverse City | Western Michigan | , | ||
| Collier | 1910 | 30 g. | Nebraska City Forresters | Missouri-Iowa-Nebraska-Kansas League | , | ||
| Edward Colligan | collig001edw | 1910 | Des Moines Boosters | Western League | , | ||
| Eddie Collins | collin003edw | 1910 | 153 g. | Philadelphia | American League | Philadelphia, PA | |
| Edward Collins | collin002e-- | 1910 | 122 g. | Waterloo Boosters | Illinois-Indiana-Iowa League | , | |
| James Collins | 1910 | 11 g. | Lancaster Lanks | Ohio State League | , | ||
| James Collins | 1910 | 17 g. | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| John Collins | 1910 | Winnipeg Maroons | Western Canada League | , | |||
| Johnny Collins | 1910 | 22 g. | Winnipeg Maroons | Western Canada League | , | ||
| Luke Collins | 1910 | Regina Bone Pilers | Western Canada League | , | |||
| Ray Collins | collin001ray | 1910 | 35 g. | Boston | American League | Boston, MA | |
| Shano Collins | collin004joh | 1910 | 4/21- | 97 g. | Chicago | American League | Chicago, IL |
| Carl Comingor | 1910 | 15 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | ||
| Carl Comingor | 1910 | Danville Speakers | Illinois-Indiana-Iowa League | , | |||
| Marshall Comingor | 1910 | Terre Haute Stags | Central League | , | |||
| Marshall Comingor | 1910 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |||
| Marshall Comingor | 1910 | Ottumwa Packers | Central Association | , | |||
| Paul Companion | compan001pau | 1910 | 29 g. | Rockford Reds | Wisconsin-Illinois League | , | |
| Earl Comstock | comsto001ear | 1910 | 92 g. | Muskegon Speed Boys | Michigan State League | , | |
| Earl Comstock | comsto001ear | 1910 | 18 g. | Battle Creek Crickets | Southern Michigan League | , | |
| Edward Conahan | 1910 | Umpire | , | ||||
| Robert Conaway | conawa001rob | 1910 | 113 g. | Waco Navigators | Texas League | , | |
| Charles Conklin | conkli002cha | 1910 | 90 g. | McPherson Merry Macks | Kansas State League | , | |
| Bert Conn | conn--001alb | 1910 | 111 g. | Johnstown Johnnies | Tri-State League | , | |
| Henry Connell | 1910 | 119 g. | La Crosse Outcasts | Minnesota-Wisconsin League | , | ||
| Joe Connor | connor002jos | 1910 | 83 g. | New Britain Perfectos | Connecticut State League | , | |
| Connors | connor002joh | 1910 | 124 g. | South Bend Bronchos | Central League | , | |
| Connors | connor002joh | 1910 | Evansville River Rats | Central League | , | ||
| Bill Connors | connor001wil | 1910 | Kewanee Boilermakers | Central Association | , | ||
| Bill Connors | connor002wil | 1910 | 97 g. | Calgary Bronchos | Western Canada League | , | |
| Ed Connors | connor002edw | 1910 | 61 g. | McKeesport Tubers | Ohio-Pennsylvania League | , | |
| Martin Conroy | 1910 | 67 g. | Altoona Rams | Tri-State League | , | ||
| Charles Conway | conway001cha | 1910 | 123 g. | Youngstown Steelmen | Ohio-Pennsylvania League | , | |
| Albert Cook | 1910 | 91 g. | Madison Senators | Wisconsin-Illinois League | , | ||
| William Cooley | cooley001wil | 1910 | Danville Speakers | Illinois-Indiana-Iowa League | , | ||
| William Cooley | cooley001wil | 1910 | Davenport Prodigals | Illinois-Indiana-Iowa League | , | ||
| Bill Cooney | cooney001wil | 1910 | -5/2 | 8 g. | Boston | National League | Boston, MA |
| Bill Cooney | cooney001wil | 1910 | 118 g. | Lowell Tigers | New England League | , | |
| John Cooper | 1910 | 59 g. | Wilmington Sailors | Eastern Carolina League | , | ||
| John Cooper | 1910 | 99 g. | Brandon Angels | Western Canada League | , | ||
| Tommy Copeland | copela001tho | 1910 | 50 g. | McLeansboro Billikens | Kentucky-Illinois-Tennessee League | , | |
| Tommy Copeland | copela001tho | 1910 | 11 g. | Burlington Pathfinders | Central Association | , | |
| John Corbett | corbet001joh | 1910 | 11 g. | Columbus Discoverers | Nebraska State League | , | |
| John Corbett | 1910 | 113 g. | Anderson Electricians | Carolina Association | , | ||
| Ted Corbett | corbet001the | 1910 | 30 g. | South Bend Bronchos | Central League | , | |
| Fred Corbin | 1910 | 122 g. | Akron Champs | Ohio-Pennsylvania League | , | ||
| Mickey Corcoran | corcor001mic | 1910 | 128 g. | Montreal Royals | Eastern League | , | |
| Mickey Corcoran | corcor001mic | 1910 | Buffalo Bisons | Eastern League | , | ||
| Mickey Corcoran | corcor001mic | 1910 | 9/15-10/9 | Cincinnati | National League | Cincinnati, OH | |
| Phil Corcoran | corcor001phi | 1910 | 26 g. | New Haven Prairie Hens | Connecticut State League | , | |
| John Core | 1910 | West Virginia U. | College | , | |||
| Wilbur Corey | 1910 | 20 g. | Toronto Maple Leafs | Eastern League | , | ||
| Roy Corhan | 1910 | 159 g. | St. Joseph Drummers | Western League | , | ||
| Robert Corkill | corkil001rob | 1910 | 129 g. | Houston Buffaloes | Texas League | , | |
| Albert Cornelius | 1910 | 30 g. | Bay City | Southern Michigan League | , | ||
| Harry Corns | corns-002har | 1910 | 34 g. | Fort Wayne Billikens | Central League | , | |
| Red Corriden | corrid001joh | 1910 | 136 g. | Omaha Rourkes | Western League | , | |
| Red Corriden | corrid001joh | 1910 | 9/8- | 26 g. | St. Louis | American League | St. Louis, MO |
| Frank Corridon | corrid001fra | 1910 | 30 g. | St. Louis | National League | St. Louis, MO | |
| Hugh Corrigan | 1910 | 26 g. | Lethbridge Miners | Western Canada League | , | ||
| Hugh Corrigan | 1910 | +5/19+ | 24 g. | Rochester Roosters | Minnesota-Wisconsin League | , | |
| Jack Corrigan | corrig002joh | 1910 | +5/19+ | Rochester Roosters | Minnesota-Wisconsin League | , | |
| Eugene Cosgrove | 1910 | 119 g. | Appleton Papermakers | Wisconsin-Illinois League | , | ||
| Henry Cote | cote--002hen | 1910 | 59 g. | Winston-Salem Twins | Carolina Association | , | |
| Leonard Cote | 1910 | 127 g. | Kalamazoo Kazoos | Southern Michigan League | , | ||
| Bob Coulson | coulso002rob | 1910 | 25 g. | Brooklyn | National League | Brooklyn, NY | |
| Bob Coulson | coulso002rob | 1910 | 110 g. | Altoona Rams | Tri-State League | , | |
| Frank Courtney | 1910 | 116 g. | Terre Haute Stags | Central League | , | ||
| John Coutts | 1910 | 107 g. | Charlotte Hornets | Carolina Association | , | ||
| Frank Coveleski | 1910 | Johnstown Johnnies | Tri-State League | , | |||
| Harry Coveleski | covele001har | 1910 | 33 g. | Birmingham Barons | Southern Association | , | |
| John Coveleski | 1910 | 106 g. | Lancaster Red Roses | Tri-State League | , | ||
| Stanley Coveleski | 1910 | 30 g. | Lancaster Red Roses | Tri-State League | , | ||
| Jack Coveney | covene001joh | 1910 | Davenport Prodigals | Illinois-Indiana-Iowa League | , | ||
| Edgar Cowan | 1910 | Shreveport Pirates | Texas League | , | |||
| George Cowan | cowan-001geo | 1910 | Portsmouth Truckers/Petersburg Goobers | Virginia League | , | ||
| George Cowan | cowan-001geo | 1910 | Richmond Colts | Virginia League | , | ||
| Thomas Cowell | 1910 | Decatur Commodores | Northern Association | , | |||
| Chester Cox | 1910 | Lethbridge Miners | Western Canada League | , | |||
| James Cox | 1910 | 106 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | ||
| Bert Coy | coy---001ber | 1910 | 202 g. | Vernon Tigers | Pacific Coast League | , | |
| Elmer Coyle | 1910 | 140 g. | Fort Worth Panthers | Texas League | , | ||
| George Crable | crable001geo | 1910 | 17 g. | Galveston Sand Crabs | Texas League | , | |
| George Crable | crable001geo | 1910 | 8/3-8/20 | Brooklyn | National League | Brooklyn, NY | |
| George Craig | craig-001geo | 1910 | 32 g. | Trenton Tigers | Tri-State League | , | |
| Harry Craig | 1910 | +7/2+ | Pitt.-Knoxville | Allegheny County | , | ||
| Doc Crandall | cranda002jam | 1910 | 45 g. | New York | National League | New York, NY | |
| Karl Crandall | 1910 | 142 g. | Memphis Turtles | Southern Association | , | ||
| Anthony Crane | crane-001ant | 1910 | 124 g. | Youngstown Steelmen | Ohio-Pennsylvania League | , | |
| James Crangle | crangl001jam | 1910 | 118 g. | Winona Pirates | Minnesota-Wisconsin League | , | |
| Bill Cranston | cranst001wil | 1910 | Denver Grizzlies | Western League | , | ||
| Crawley | 1910 | 12 g. | Erie Sailors | Ohio-Pennsylvania League | , | ||
| David Creagan | 1910 | Rocky Mount Railroaders | Eastern Carolina League | , | |||
| Lawrence Creoli | 1910-14 | Donaldsonville LA | Independent | , | |||
| Leslie Crichlow | 1910 | 107 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Pat Crisham | crisha002pat | 1910 | Lawrence Colts | New England League | , | ||
| Dode Criss | criss-001dod | 1910 | 70 g. | St. Louis | American League | St. Louis, MO | |
| Ches Crist | crist-001che | 1910 | 66 g. | Jersey City Skeeters | Eastern League | , | |
| F. W. Crist | 1910 | 102 g. | Altoona Rams | Tri-State League | , | ||
| Bill Cristall | crista001wil | 1910 | 31 g. | Evansville River Rats | Central League | , | |
| Richard Crittenden | 1910 | 57 g. | Larned Wheat Kings | Kansas State League | , | ||
| Davey Crockett | crocke001dan | 1910 | 27 g. | Goldsboro Giants | Eastern Carolina League | , | |
| Jack Cronin | cronin001joh | 1910 | Providence Grays | Eastern League | , | ||
| Jack Cronin | cronin001joh | 1910 | Buffalo Bisons | Eastern League | , | ||
| Cross | 1910 | 10 g. | Beeville Orange Growers | Southwest Texas League | , | ||
| Cross | 1910 | 54 g. | Aberdeen Black Cats | Washington State League | , | ||
| Lave Cross | cross-001laf | 1910 | 109 g. | Charlotte Hornets | Carolina Association | , | |
| Monte Cross | cross-001mon | 1910 | 103 g. | Scranton Miners | New York State League | , | |
| Bill Crouch | crouch003wil | 1910 | WilmDE-DuPont | Independent | , | ||
| Bill Crouch | crouch003wil | 1910 | 7/12 | St. Louis | American League | St. Louis, MO | |
| Bill Crouch | crouch003wil | 1910 | Lynchburg Shoemakers | Virginia League | , | ||
| Charles Crouch | 1910 | Alaiinoosa CO | Independent | , | |||
| John Crouch | 1910 | +5/18+ | 14 g. | Spartanburg Spartans | Carolina Association | , | |
| James Crowley | 1910 | Roxbury MA | Independent | , | |||
| James Crowley | 1910 | +6/20-7/30+ | 16 g. | Providence Grays | Eastern League | , | |
| James Crowley | 1910 | +8/20+ | Montreal Royals | Eastern League | , | ||
| Joe Crowley | 1910 | Toledo HS | School | , | |||
| Joe Crowley | 1910 | Toledo Mud Hens | American Association | , | |||
| Dick Crozier | crozie001j-- | 1910 | Raleigh Red Birds | Eastern Carolina League | , | ||
| Norman Cruikshank | 1910 | 76 g. | Seattle Giants | Northwestern League | , | ||
| Walter Crum | crum--001wal | 1910 | 130 g. | Worcester Busters | New England League | , | |
| Edward Crutcher | 1910 | 51 g. | Frankfort Statesmen | Blue Grass League | , | ||
| Louis Crutcher | 1910 | no g. | Indianapolis Indians | American Association | , | ||
| Louis Crutcher | 1910 | +6/14+8/1+ | 51 g. | Frankfort Statesmen | Blue Grass League | , | |
| Richard Crutcher | 1910 | +7/17+ | 30 g. | Enid Railroaders | Western Association | , | |
| Richard Crutcher | 1910 | +9/ | 13 g. | St. Joseph Drummers | Western League | , | |
| John Cullen | 1910 | 53 g. | Johnstown Johnnies | Tri-State League | , | ||
| Cummings | 1910 | 62 g. | Canton Deubers | Ohio-Pennsylvania League | , | ||
| Alvin Cummings | 1910 | 34 g. | Duluth White Sox | Minnesota-Wisconsin League | , | ||
| Francis Cummings | 1910 | 20 g. | Rockford Reds | Wisconsin-Illinois League | , | ||
| Francis Cummings | 1910 | Macomb Potters | Illinois-Missouri League | , | |||
| Francis Cummings | 1910 | Lincoln Abes | Illinois-Missouri League | , | |||
| Bill Cunningham | cunnin004wil | 1910 | 123 g. | New Bedford Whalers | New England League | , | |
| Bill Cunningham | cunnin004wil | 1910 | 9/12- | 21 g. | Washington | American League | Washington, DC |
| Mike Cunningham | cunnin001mod | 1910 | 36 g. | Troy Trojans | New York State League | , | |
| Cliff Curtis | curtis001cli | 1910 | 43 g. | Boston | National League | Boston, MA | |
| Clyde Curtis | curtis001cly | 1910 | 122 g. | Terre Haute Stags | Central League | , | |
| Fred Curtis | curtis001fre | 1910 | 105 g. | Winona Pirates | Minnesota-Wisconsin League | , | |
| Gene Curtis | curtis002eug | 1910 | 118 g. | Erie Sailors | Ohio-Pennsylvania League | , | |
| Harry Curtis | curtis001har | 1910 | 70 g. | Montreal Royals | Eastern League | , | |
| Peter Curtis | 1910 | 148 g. | Des Moines Boosters | Western League | , | ||
| James Cuthbert | 1910 | 113 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | ||
| Ralph Cutting | 1910 | 44 g. | Milwaukee Brewers | American Association | , | ||
| Herman Dahlgren | 1910 | +5/11+ | Syracuse Stars | New York State League | , | ||
| Herman Dahlgren | 1910 | 34 g. | Superior Red Sox | Minnesota-Wisconsin League | , | ||
| Oran Dail | 1910 | 257 ab | Concordia Travelers | Central Kansas League | , | ||
| Oran Dail | 1910 | Moorland OK | Independent | , | |||
| Elmer Daily | 1910 | Shamokin PA | Independent | , | |||
| Elmer Daily | 1910 | 22 g. | Williamsport Millionaires | Tri-State League | , | ||
| Joseph Daley | 1910 | Houston Buffaloes | Texas League | , | |||
| Judson Daley | daley-001jud | 1910 | 139 g. | Montgomery Climbers | Southern Association | , | |
| Tom Daley | daley-001tho | 1910 | 223 g. | Los Angeles Angels | Pacific Coast League | , | |
| Bill Dam | dam---001elb | 1910 | Lynn Shoemakers | New England League | , | ||
| Bill Dam | dam---001elb | 1910 | Brockton Shoemakers | New England League | , | ||
| Frank Dang | 1910 | Winona Pirates | Minnesota-Wisconsin League | , | |||
| Bert Daniels | daniel001ben | 1910 | Bucknell Col. | College | , | ||
| Bert Daniels | daniel001ben | 1910 | New York | American League | New York, NY | ||
| Robert Daniels | 1910 | 22 g. | Bartlesville Boosters | Western Association | , | ||
| Robert Daniels | 1910 | 14 g. | Kewanee Boilermakers | Central Association | , | ||
| Babe Danzig | danzig001har | 1910 | 144 g. | Sacramento Sacts | Pacific Coast League | , | |
| Clifford Daringer | 1910 | 47 g. | Sacramento Sacts | Pacific Coast League | , | ||
| Howard Daringer | 1910 | 129 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| Augustus Daum | daum--001aug | 1910 | 92 g. | Lynn Shoemakers | New England League | , | |
| James Davey | davey-002jam | 1910 | Winona Pirates | Minnesota-Wisconsin League | , | ||
| Bill Davidson | davids007wil | 1910 | 136 g. | Brooklyn | National League | Brooklyn, NY | |
| Robert Davidson | davids001pau | 1910 | 98 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Samuel Davidson | 1910 | 85 g. | Medicine Hat Mad Hatters/Saskatoon Berrypickers | Western Canada League | , | ||
| Ben Davis | davis-001ben | 1910 | 159 g. | Spokane Indians | Northwestern League | , | |
| Gerald Davis | davis-004ger | 1910 | 70 g. | Oklahoma City Indians | Texas League | , | |
| Lefty Davis | davis-001alf | 1910 | , | ||||
| Paul Davis | davis-002pau | 1910 | 100 g. | York White Roses | Tri-State League | , | |
| Paul Davis | davis-002pau | 1910 | Lancaster Red Roses | Tri-State League | , | ||
| Fred Dawson | 1910 | 126 g. | Canton Deubers | Ohio-Pennsylvania League | , | ||
| Herbert Dawson | 1910 | 24 g. | Minneapolis Millers | American Association | , | ||
| Archie DeBaker | debake001art | 1910 | 37 g. | Muskegon Speed Boys | Michigan State League | , | |
| Albert Decker | decker001alb | 1910 | 109 g. | Youngstown Steelmen | Ohio-Pennsylvania League | , | |
| Arista DeHaven | 1910 | 99 g. | Atlanta Crackers | Southern Association | , | ||
| Arista DeHaven | 1910 | 40 g. | Dayton Veterans | Central League | , | ||
| Frank Dehaven | 1910 | Univ. of Illinois | College | , | |||
| Frank Dehaven | 1910 | Eau Claire Commissioners | Minnesota-Wisconsin League | , | |||
| Frank Dehaven | 1910 | Wausau Lumberjacks | Minnesota-Wisconsin League | , | |||
| Samuel DeHaven | 1910 | 105 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | ||
| Charles Deiters | deiter001cha | 1910 | 105 g. | East Liverpool Potters | Ohio-Pennsylvania League | , | |
| William Delahanty | deleha001wil | 1910 | Waterbury Finnegans | Connecticut State League | , | ||
| Del Delair | 1910 | Monmouth Browns | Central Association | , | |||
| Del Delair | 1910 | Falls City Colts | Missouri-Iowa-Nebraska-Kansas League | , | |||
| Edwin DeLave | 1910 | 30 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | ||
| Edwin DeLave | 1910 | 29 g. | Eau Claire Commissioners | Minnesota-Wisconsin League | , | ||
| William Dell | dell--001wil | 1910 | 32 g. | Edmonton Eskimos | Western Canada League | , | |
| Phil Deller | deller001phi | 1910 | 28 g. | Edmonton Eskimos | Western Canada League | , | |
| Albert Demaree | 1910 | Chattanooga Lookouts | Southern Association | , | |||
| Albert Demaree | 1910 | Hopkinsville Hoppers | Kentucky-Illinois-Tennessee League | , | |||
| Gene DeMontreville | demont001eug | 1910 | 107 g. | New Orleans Pelicans | Southern Association | , | |
| George Deneau | 1910 | 102 g. | Bay City | Southern Michigan League | , | ||
| William Derby | derby-001--- | 1910 | Terre Haute Stags | Central League | , | ||
| Claud Derrick | derric001cla | 1910 | 104 g. | Greenville Spinners | Carolina Association | , | |
| Claud Derrick | derric001cla | 1910 | 9/8- | 2 g. | Philadelphia | American League | Philadelphia, PA |
| Frederick Derrick | 1910 | 112 g. | Greenville Spinners | Carolina Association | , | ||
| John Desmond | 1910 | 91 g. | Enid Railroaders | Western Association | , | ||
| John Desmond | 1910 | Tulsa Oilers | Western Association | , | |||
| Thomas Devine | devine001tho | 1910 | 121 g. | Fall River Indians | New England League | , | |
| Guy Dickey | dickey001guy | 1910 | 43 g. | Haverhill Hustlers | New England League | , | |
| Diebold | 1910 | Scranton Miners | New York State League | , | |||
| Diebold | 1910 | 6 g. | Canton Deubers | Ohio-Pennsylvania League | , | ||
| Walter Diehl | 1910 | 110 g. | Pekin Celestials | Illinois-Missouri League | , | ||
| Paul Dietz | 1910 | no g. | York White Roses | Tri-State League | , | ||
| Paul Dietz | 1910 | Montgomery Climbers | Southern Association | , | |||
| William Dithridge | dithri001wil | 1910 | 109 g. | Pekin Celestials | Illinois-Missouri League | , | |
| William Doak | 1910 | 37 g. | Wheeling Stogies | Central League | , | ||
| Leonard Dobard | 1910 | 21 g. | Dayton Veterans | Central League | , | ||
| Leonard Dobard | 1910 | 103 g. | Charlotte Hornets | Carolina Association | , | ||
| John Dobbs | dobbs-001joh | 1910 | 75 g. | Chattanooga Lookouts | Southern Association | , | |
| Frank Dobson | 1910 | 47 g. | Fayetteville Highlanders | Eastern Carolina League | , | ||
| Frank Dobson | 1910 | 46 g. | Richmond Colts | Virginia League | , | ||
| John Dodge | 1910 | Jonesboro Zebras | Northeast Arkansas League | , | |||
| John Dolan | dolan-004joh | 1910 | 66 g. | Hartford Senators | Connecticut State League | , | |
| Leon Dolan | dolan-001leo | 1910 | 127 g. | Wausau Lumberjacks | Minnesota-Wisconsin League | , | |
| Frank Donahue | donahu002fra | 1910 | 126 g. | Fort Wayne Billikens | Central League | , | |
| Frank Donahue | donahu002fra | 1910 | Zanesville Potters | Central League | , | ||
| Pat Donahue | donahu003pat | 1910 | 2 g. | Boston | American League | Boston, MA | |
| Pat Donahue | donahu003pat | 1910 | 14 g. | Philadelphia | American League | Philadelphia, PA | |
| Pat Donahue | donahu003pat | 1910 | 2 g. | Cleveland | American League | Cleveland, OH | |
| Pat Donahue | donahu003pat | 1910 | 9/5 | Philadelphia | American League | Philadelphia, PA | |
| William Donahue | donahu001wil | 1910 | 139 g. | Quincy Vets | Central Association | , | |
| Frank Donnelly | donnel002fra | 1910 | Galveston Sand Crabs | Texas League | , | ||
| Augustus Donovan | 1910 | 73 g. | Hutchinson Salt Packers | Kansas State League | , | ||
| Fred Donovan | donova002fre | 1910 | 54 g. | Clinton Champs | Illinois-Missouri League | , | |
| Fred Donovan | 1910 | Wilkes-Barre Barons | New York State League | , | |||
| Michael Donovan | 1910 | 30 g. | Fayetteville Highlanders | Eastern Carolina League | , | ||
| Charles Dooley | dooley001cha | 1910 | Utica Utes | New York State League | , | ||
| Edgar Doty | 1910 | 18 g. | Evansville River Rats | Central League | , | ||
| Edgar Doty | 1910 | 17 g. | Kalamazoo Kazoos | Southern Michigan League | , | ||
| Dove | 1910 | 12 g. | Canton Chinks | Illinois-Missouri League | , | ||
| George Dove | 1910 | +10/2+ | Spri.-Shamrocks | Independent | , | ||
| Seth Dove | 1910 | Spri.-Barclay | Independent | , | |||
| Seth Dove | 1910 | Canton Chinks | Illinois-Missouri League | , | |||
| Seth Dove | 1910 | +10/2+ | Spri.-Shamrocks | Independent | , | ||
| Skip Dowd | dowd--001jam | 1910 | 7/5 | Pittsburgh | National League | Pittsburgh, PA | |
| John Dowell | dowell001joh | 1910 | Harrisburg Miners | Kentucky-Illinois-Tennessee League | , | ||
| Roy Dowers | dowers001roy | 1910 | 134 g. | Hannibal Cannibals | Central Association | , | |
| Jim Downey | downey002jam | 1910 | 72 g. | Jacksonville Jays | South Atlantic League | , | |
| Thomas Downey | downey002tho | 1910 | 164 g. | Kansas City Blues | American Association | , | |
| Doyle | 1910 | 5 g. | Willimantic Colts | Connecticut Association | , | ||
| Frank Doyle | doyle-001fra | 1910 | 123 g. | Roanoke Tigers | Virginia League | , | |
| Fred Doyle | 1910 | Holland Wooden Shoes | Michigan State League | , | |||
| Jim Doyle | doyle-004jam | 1910 | 5/4- | 7 g. | Cincinnati | National League | Cincinnati, OH |
| Jim Doyle | doyle-004jam | 1910 | 92 g. | Louisville Colonels | American Association | , | |
| Larry Doyle | doyle-002law | 1910 | 151 g. | New York | National League | New York, NY | |
| Slow Joe Doyle | doyle-001jud | 1910 | 3 g. | New York | American League | New York, NY | |
| Slow Joe Doyle | doyle-001jud | 1910 | 5 g. | Cincinnati | National League | Cincinnati, OH | |
| William Draher | 1910 | 94 g. | Saginaw Wa-was | Southern Michigan League | , | ||
| Drake | 1910 | Joliet Jolly-ites/Sterling Infants | Northern Association | , | |||
| Delos Drake | drake-002del | 1910 | 122 g. | Wilkes-Barre Barons | New York State League | , | |
| Leo Dressen | 1910 | Lyons Lions | Kansas State League | , | |||
| Leo Dressen | 1910 | Larned Wheat Kings | Kansas State League | , | |||
| Alvin Dretchko | 1910 | +5/15+ | Seattle Giants | Northwestern League | , | ||
| Alvin Dretchko | 1910 | 18 g. | Edmonton Eskimos | Western Canada League | , | ||
| Drew | 1910 | 14 g. | Newton Railroaders | Kansas State League | , | ||
| Lew Drill | drill-001lew | 1910 | Monmouth Browns | Central Association | , | ||
| James Drohan | drohan001jam | 1910 | 40 g. | Oklahoma City Indians | Texas League | , | |
| Oscar Drucke | 1910 | Oklahoma City Indians | Texas League | , | |||
| Oscar Drucke | 1910 | Waco Navigators | Texas League | , | |||
| Ferd Drumm | drumm-001fer | 1910 | Canton Deubers | Ohio-Pennsylvania League | , | ||
| Frank DuChien | duchie001fra | 1910 | 121 g. | Wausau Lumberjacks | Minnesota-Wisconsin League | , | |
| Roy Dudley | dudley001roy | 1910 | 97 g. | Lethbridge Miners | Western Canada League | , | |
| John Duffy | 1910 | 26 g. | Danville Speakers | Illinois-Indiana-Iowa League | , | ||
| John Duffy | 1910 | no g. | Toledo Mud Hens | American Association | , | ||
| Clarence Duggan | duggan001cla | 1910 | 53 g. | Calgary Bronchos | Western Canada League | , | |
| Jim Duggan | duggan001jam | 1910 | 105 g. | Holyoke Papermakers | Connecticut State League | , | |
| John Duggan | duggan001joh | 1910 | Indianapolis Indians | American Association | , | ||
| John Duggan | duggan001joh | 1910 | 32 g. | Syracuse Stars | New York State League | , | |
| William Duggan | 1910 | 102 g. | Saginaw Wa-was | Southern Michigan League | , | ||
| Thomas Dugger | 1910 | 43 g. | Evansville River Rats | Central League | , | ||
| Clarence Dunbar | dunbar000har | 1910 | 59 g. | Wausau Lumberjacks | Minnesota-Wisconsin League | , | |
| Earl Dunckel | 1910 | 81 g. | Traverse City | Western Michigan | , | ||
| Gus Dundon | dundon001aug | 1910 | 139 g. | Galveston Sand Crabs | Texas League | , | |
| Bert Dunn | dunn--003ber | 1910 | 65 g. | Medicine Hat Mad Hatters/Saskatoon Berrypickers | Western Canada League | , | |
| Herbert Dunn | dunn--005ber | 1910 | 65 g. | Medicine Hat Mad Hatters/Saskatoon Berrypickers | Western Canada League | , | |
| Jack Dunn | dunn--005joh | 1910 | 76 g. | Baltimore Orioles | Eastern League | , | |
| James Dunn | 1910 | 47 g. | Ottumwa Packers | Central Association | , | ||
| Joe Dunn | dunn--001jos | 1910 | 110 g. | Mobile Sea Gulls | Southern Association | , | |
| Ward Dunn | 1910 | 27 g. | Tacoma Cubs | Washington State League | , | ||
| William Dunn | dunn--001wil | 1910 | 111 g. | Rochester Roosters | Minnesota-Wisconsin League | , | |
| Alexander Dupree | dupree001ale | 1910 | 20 g. | Macon Peaches | South Atlantic League | , | |
| Alexander Dupree | dupree001ale | 1910 | 16 g. | Guthrie Senators | Western Association | , | |
| Albert Durham | 1910 | 124 g. | McKeesport Tubers | Ohio-Pennsylvania League | , | ||
| James Durham | durham003jam | 1910 | 46 g. | Wichita Jobbers | Western League | , | |
| Claude Durlin | 1910 | no g. | Montreal Royals | Eastern League | , | ||
| Claude Durlin | 1910 | +5/5+ | Wilkes-Barre Barons | New York State League | , | ||
| Claude Durlin | 1910 | +5/18+ | Lancaster Red Roses | Tri-State League | , | ||
| Charles Durmeyer | 1910 | 108 g. | Altoona Rams | Tri-State League | , | ||
| Charles Duvie | 1910 | 11 g. | Charlotte Hornets | Carolina Association | , | ||
| Billy Dyer | dyer--001wil | 1910-13 | Holy Cross Col. | College | , | ||
| Truck Eagan | eagan-001cha | 1910 | 36 g. | Sacramento Baby Senators | California State League | , | |
| Johnny Eagle | 1910 | San Francisco | CaDt | , | |||
| Billy Earle | earle-001bil | 1910 | Battle Creek Crickets | Southern Michigan League | , | ||
| Edward Earley | 1910 | Binghamton Bingoes | New York State League | , | |||
| Edward Earley | 1910 | Elmira Colonels | New York State League | , | |||
| Christopher Earthman | 1910 | Arkansas City Grays | Kansas State League | , | |||
| Mal Eason | eason-001mal | 1910-17 | MLB Umpire | National League | , | ||
| Walter East | east--002wal | 1910 | Montreal Royals | Eastern League | , | ||
| Walter East | east--002wal | 1910 | Buffalo Bisons | Eastern League | , | ||
| Eastman | 1910 | 19 g. | Hattiesburg Timberjacks | Cotton States League | , | ||
| Eastman | 1910 | Macon Peaches | South Atlantic League | , | |||
| Eastman | 1910 | +8/27+ | Fall River Indians | New England League | , | ||
| Fred Eastman | 1910 | 25 g. | Waterbury Finnegans | Connecticut State League | , | ||
| Charles Eaton | 1910 | 39 g. | Hattiesburg Timberjacks | Cotton States League | , | ||
| Henry Eberline | 1910 | 33 g. | Fort Worth Panthers | Texas League | , | ||
| Roy Eberly | 1910 | Appleton Papermakers | Wisconsin-Illinois League | , | |||
| Roy Eberly | 1910 | Brockton Shoemakers | New England League | , | |||
| Henry Eberts | eberts001hen | 1910 | 131 g. | Hannibal Cannibals | Central Association | , | |
| Mills Ebright | ebrigh001a-- | 1910 | 46 g. | Lyons Lions | Kansas State League | , | |
| Max Eck | 1910 | Hasting MI | Independent | , | |||
| Jerry Eddinger | edinge001jer | 1910 | Umpire | Wisconsin-Illinois League | , | ||
| Jerry Eddinger | edinge001jer | 1910 | +7/29+ | Umpire | Central Association | , | |
| Frank Eddington | 1910 | 49 g. | Paris Bourbonites | Blue Grass League | , | ||
| Frank Eddington | 1910 | Winchester Hustlers | Blue Grass League | , | |||
| Frank Eddington | 1910 | Lexington Colts | Blue Grass League | , | |||
| Jacob Edgar | 1910 | Bloomsburg | Susquehanna | , | |||
| Frank Edington | edingt001jac | 1910 | 49 g. | Paris Bourbonites | Blue Grass League | , | |
| Frank Edington | edingt001jac | 1910 | Winchester Hustlers | Blue Grass League | , | ||
| Frank Edington | edingt001jac | 1910 | Lexington Colts | Blue Grass League | , | ||
| Clifford Edmiston | edmist001cha | 1910 | 65 g. | Hutchinson Salt Packers | Kansas State League | , | |
| Sam Edmonston | edmons001sam | 1910 | 23 g. | Trenton Tigers | Tri-State League | , | |
| Edmunds | 1910 | 34 g. | Anderson Electricians | Carolina Association | , | ||
| Frederick Edmunds | 1910 | 61 g. | Winnipeg Maroons | Western Canada League | , | ||
| Ben Egan | egan--001art | 1910 | 106 g. | Baltimore Orioles | Eastern League | , | |
| Ned Egan | egan--001edw | 1910 | Ottumwa Packers | Central Association | , | ||
| Wish Egan | egan--001alo | 1910 | 14 g. | Newark Indians | Eastern League | , | |
| Charles Eichberger | eichbe001cha | 1910 | 113 g. | York White Roses | Tri-State League | , | |
| Charles Eichberger | eichbe001cha | 1910 | Harrisburg Senators | Tri-State League | , | ||
| John Eicherly | eicher000joh | 1910 | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| John Eide | 1910 | +5/13+ | Freeport Pretzels | Northern Association | , | ||
| John Eide | 1910 | +6/19+ | Dixon IL Browns | Independent | , | ||
| D. Eldred | 1910 | Springfield Senators | Illinois-Indiana-Iowa League | , | |||
| Frank Eley | eley--001fra | 1910 | 100 g. | Bridgeport Orators | Connecticut State League | , | |
| Roy Ellam | ellam-001roy | 1910 | 110 g. | Birmingham Barons | Southern Association | , | |
| Edwin Elliott | elliot005cha | 1910 | Toronto Argonauts | , | |||
| Gene Elliott | elliot002eug | 1910 | 95 g. | McKeesport Tubers | Ohio-Pennsylvania League | , | |
| Rowdy Elliott | elliot001har | 1910 | 97 g. | Birmingham Barons | Southern Association | , | |
| Rowdy Elliott | elliot001har | 1910 | 9/24- | 3g. | Boston | National League | Boston, MA |
| Charles Elsey | elsey-001cha | 1910 | Moose Jaw Robin Hoods | Western Canada League | , | ||
| Charles Elsey | elsey-001cha | 1910 | Regina Bone Pilers | Western Canada League | , | ||
| Charles Elston | elston001cur | 1910 | 148 g. | Providence Grays | Eastern League | , | |
| Elton | 1910 | 13 g. | Holland Wooden Shoes | Michigan State League | , | ||
| Gustave Eng | eng---001gus | 1910 | 109 g. | Burlington Pathfinders | Central Association | , | |
| George Engel | engel-002geo | 1910 | 17 g. | Seattle Giants | Northwestern League | , | |
| George Engel | engel-002geo | 1910 | Vancouver Beavers | Northwestern League | , | ||
| Augustus Epler | 1910 | 123 g. | Marion Diggers | Ohio State League | , | ||
| Oscar Epling | 1910 | 170 ab | Abilene Reds | Central Kansas League | , | ||
| Edward Erickson | ericks002edw | 1910 | 39 g. | Vancouver Beavers | Northwestern League | , | |
| Frank Erickson | 1910 | 81 g. | Green Bay Bays | Wisconsin-Illinois League | , | ||
| Peter Erloff | 1910 | 93 g. | Nashville Volunteers | Southern Association | , | ||
| Jimmy Esmond | esmond001jam | 1910 | 157 g. | Jersey City Skeeters | Eastern League | , | |
| Bill Essick | essick002wil | 1910 | 24 g. | Kansas City Blues | American Association | , | |
| Bill Essick | essick002wil | 1910 | Toledo Mud Hens | American Association | , | ||
| John Eubank | eubank001joh | 1910 | 39 g. | Macon Peaches | South Atlantic League | , | |
| John Eubank | eubank001joh | 1910 | 35 g. | Houston Buffaloes | Texas League | , | |
| Frank Eustace | eustac003fra | 1910 | 119 g. | Youngstown Steelmen | Ohio-Pennsylvania League | , | |
| Norman Evans | 1910 | 77 g. | Goldsboro Giants | Eastern Carolina League | , | ||
| Raymond Evans | 1910 | 130 g. | Jackson Convicts | Southern Michigan League | , | ||
| Roy Evans | evans-001roy | 1910 | 11 g. | Arkansas City Grays | Kansas State League | , | |
| William Everett | everet002wil | 1910 | 64 g. | Aurora Islanders | Wisconsin-Illinois League | , | |
| Jack Evers | evers-001joh | 1910 | York White Roses | Tri-State League | , | ||
| Elwood Eyler | eyler-001elw | 1910 | 16 g. | Keokuk Indians | Central Association | , | |
| Albert Fabrique | 1910 | Jackson Convicts | Southern Michigan League | , | |||
| James Fagan | 1910 | 91 g. | Red Cloud Cloud | Nebraska State League | , | ||
| Jim Fairbank | fairba001jam | 1910 | Utica Utes | New York State League | , | ||
| George Fairbanks | 1910 | 76 g. | Greensboro Champs | Carolina Association | , | ||
| George Fairbanks | 1910 | Greenville Spinners | Carolina Association | , | |||
| George Fairbanks | 1910 | Spartanburg Spartans | Carolina Association | , | |||
| Peter Falkenberg | 1910 | 110 g. | Great Bend Millers | Kansas State League | , | ||
| Charlie Fallon | fallon001cha | 1910 | 12 g. | New Haven Prairie Hens | Connecticut State League | , | |
| Charlie Fallon | fallon001cha | 1910 | Binghamton Bingoes | New York State League | , | ||
| Charlie Fallon | fallon001cha | 1910 | Troy Trojans | New York State League | , | ||
| Harry Fanwell | fanwel001har | 1910 | Danville Red Sox | Virginia League | , | ||
| Harry Fanwell | fanwel001har | 1910 | -10/1 | 17 g. | Cleveland | American League | Cleveland, OH |
| Ed Farley | farley001edw | 1910 | Northampton Meadowlarks | Connecticut State League | , | ||
| Ed Farley | farley001edw | 1910 | Waterbury Finnegans | Connecticut State League | , | ||
| Lawrence Farrand | 1910 | Ogdensburg | Northern New York League | , | |||
| F. F. Farrar | 1910 | no g. | Winnipeg Maroons | Western Canada League | , | ||
| Bliss Farrell | 1910 | Youngstown Steelmen | Ohio-Pennsylvania League | , | |||
| Charles Farrell | 1910 | 32 g. | Waco Navigators | Texas League | , | ||
| Charles Farrell | 1910 | Muskogee Navigators | Western Association | , | |||
| Joe Fautsch | fautsc002jos | 1910 | 55 g. | Red Wing Manufacturers | Minnesota-Wisconsin League | , | |
| Fay | 1910 | 5 g. | Hopkinsville Hoppers | Kentucky-Illinois-Tennessee League | , | ||
| Jim Feeney | feeney002jam | 1910 | 24 g. | San Antonio Bronchos | Texas League | , | |
| Homer Feild | 1910 | 27 g. | Beeville Orange Growers | Southwest Texas League | , | ||
| John Fenlon | 1910 | 130 g. | Sioux City Packers | Western League | , | ||
| Arthur Fennell | 1910 | 39 g. | Wausau Lumberjacks | Minnesota-Wisconsin League | , | ||
| Emanuel Ferrias | ferria001e-- | 1910 | 37 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | |
| H. Ferris | 1910 | 35 g. | Middletown Jewels | Connecticut Association | , | ||
| Jack Ferry | ferry-002joh | 1910 | Jersey City Skeeters | Eastern League | , | ||
| Jack Ferry | ferry-002joh | 1910 | 9/4- | 6 g. | Pittsburgh | National League | Pittsburgh, PA |
| Willy Fetzer | fetzer001wil | 1910 | 22 g. | Des Moines Boosters | Western League | , | |
| George Feye | feye--001geo | 1910 | Umpire | Wisconsin-Illinois League | , | ||
| Homer Fields | fields001hom | 1910 | 27 g. | Beeville Orange Growers | Southwest Texas League | , | |
| Eddie Files | files-001cha | 1910 | Providence Grays | Eastern League | , | ||
| Jack Fillman | fillma001joh | 1910 | 139 g. | Fort Worth Panthers | Texas League | , | |
| Clarence Fink | fink--001cla | 1910 | 101 g. | Harrisburg Senators | Tri-State League | , | |
| William Finke | 1910 | 60 g. | Saginaw Wa-was | Southern Michigan League | , | ||
| Pembroke Finlayson | finlay001pem | 1910 | 54 g. | Lawrence Colts | New England League | , | |
| Ed Finney | finney001ed- | 1910 | Umpire | Pacific Coast League | , | ||
| Frederic Finney | finney001fre | 1910 | 98 g. | Ottumwa Packers | Central Association | , | |
| Omar Firestine | firest001oma | 1910 | 143 g. | San Antonio Bronchos | Texas League | , | |
| Leslie Fish | fish--002les | 1910 | 70 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | |
| Leslie Fish | fish--002les | 1910 | Clarksville Volunteers | Kentucky-Illinois-Tennessee League | , | ||
| Leslie Fish | fish--002les | 1910 | Harrisburg Miners | Kentucky-Illinois-Tennessee League | , | ||
| Fisher | fisher018--- | 1910 | Muskegon Speed Boys | Michigan State League | , | ||
| Fisher | 1910 | 31 g. | Denver Grizzlies | Western League | , | ||
| Fisher | 1910 | 100 g. | Rochester Roosters | Minnesota-Wisconsin League | , | ||
| August Fisher | 1910 | 163 g. | Portland Beavers | Pacific Coast League | , | ||
| John Fisher | 1910 | 20 g. | Mobile Sea Gulls | Southern Association | , | ||
| Red Fisher | fisher002joh | 1910 | 4/25-6/30 | St. Louis | American League | St. Louis, MO | |
| Red Fisher | fisher002joh | 1910 | 26 g. | Louisville Colonels | American Association | , | |
| Tom Fisher | fisher002tho | 1910 | 74 g. | Atlanta Crackers | Southern Association | , | |
| William Fisher | 1910 | 51 g. | Roanoke Tigers | Virginia League | , | ||
| William Fisher | 1910 | 114 g. | Vernon Tigers | Pacific Coast League | , | ||
| Max Fiske | fiske-001max | 1910 | Chic.-Red Sox | Independent | , | ||
| John Fitzgerald | fitzge004joh | 1910 | 43 g. | Sacramento Sacts | Pacific Coast League | , | |
| Edward Fitzpatrick | 1910 | 119 g. | Toronto Maple Leafs | Eastern League | , | ||
| Frank Fitzpatrick | fitzpa001fra | 1910 | 124 g. | Lowell Tigers | New England League | , | |
| Sylvester Flanagan | 1910 | 111 g. | Vancouver Beavers | Northwestern League | , | ||
| Jack Flater | flater001joh | 1910 | +4/26+ | Newark Indians | Eastern League | , | |
| Earl Fleharty | 1910 | Birmingham Barons | Southern Association | , | |||
| Chuck Fleming | flemin002cha | 1910 | Monmouth Browns | Central Association | , | ||
| Chuck Fleming | flemin002cha | 1910 | Kewanee Boilermakers | Central Association | , | ||
| Chuck Fleming | flemin002cha | 1910 | Quincy Vets | Central Association | , | ||
| Jack Flournoy | flourn001joh | 1910 | 30 g. | Evansville River Rats | Central League | , | |
| Jack Flournoy | flourn001joh | 1910 | 53 g. | Louisville Colonels | American Association | , | |
| Clarence Flowers | 1910 | 36 g. | Greenville Spinners | Carolina Association | , | ||
| James Flynn | flynn-001jam | 1910 | 30 g. | Racine Belles | Wisconsin-Illinois League | , | |
| Thomas Fogarty | fogart001tho | 1910 | Winston-Salem Twins | Carolina Association | , | ||
| Lee Fohl | fohl--001leo | 1910 | 128 g. | Akron Champs | Ohio-Pennsylvania League | , | |
| Donald Foley | 1910 | 129 g. | Hannibal Cannibals | Central Association | , | ||
| Somerby Follansbee | 1910 | 67 g. | Johnstown Johnnies | Tri-State League | , | ||
| Leon Ford | 1910 | N.O.-Braquets | Independent | , | |||
| Foreman | 1910 | Wilson Tobacconists | Eastern Carolina League | , | |||
| James Foreman | 1910 | Reading Pretzels | Tri-State League | , | |||
| Bill Forman | forman001wil | 1910 | Indiana PA | College | , | ||
| Bill Forman | forman001wil | 1910 | 9/9 | Washington | American League | Washington, DC | |
| Bill Forman | forman001wil | 1910 | 6 g. | McKeesport Tubers | Ohio-Pennsylvania League | , | |
| William Forney | forney001wil | 1910 | 52 g. | Hannibal Cannibals | Central Association | , | |
| Forrey | 1910 | +7/22+ | Lansing Senators | Southern Michigan League | , | ||
| Frank Forsythe | 1910 | 85 g. | Pekin Celestials | Illinois-Missouri League | , | ||
| Ernest Fosberg | 1910 | Joliet Jolly-ites/Sterling Infants | Northern Association | , | |||
| Ernest Fosberg | 1910 | Winnipeg Maroons | Western Canada League | , | |||
| Edward Foster | 1910 | 15 g. | Macon Peaches | South Atlantic League | , | ||
| Samuel Foster | foster001sam | 1910 | 5/4- | Danville Speakers | Illinois-Indiana-Iowa League | , | |
| Samuel Foster | foster001sam | 1910 | +5/15-6/15+ | Jacksonville Jacks | Northern Association | , | |
| Samuel Foster | foster001sam | 1910 | +8/22+ | Monmouth Browns | Central Association | , | |
| John Fournier | 1910 | 14 g. | Sacramento Sacts | Pacific Coast League | , | ||
| John Fournier | 1910 | 48 g. | Aberdeen Black Cats | Washington State League | , | ||
| John Fournier | 1910 | 21 g. | Sacramento Baby Senators | California State League | , | ||
| George Fowler | 1910 | 39 ab | Concordia Travelers | Central Kansas League | , | ||
| George Fowler | 1910 | Chickasha OK | Independent | , | |||
| John Fowler | 1910 | 163 ab | Concordia Travelers | Central Kansas League | , | ||
| Fox | fox---001aug | 1910 | Canton Deubers | Ohio-Pennsylvania League | , | ||
| Fox | 1910 | 29 g. | Grand Rapids Raiders | Central League | , | ||
| Bill Fox | fox---006wil | 1910 | 161 g. | Omaha Rourkes | Western League | , | |
| Bill Fox | fox---006wil | 1910 | St. Joseph Drummers | Western League | , | ||
| Charley Fox | fox---003cha | 1910 | 126 g. | Lansing Senators | Southern Michigan League | , | |
| Jack Fox | fox---004joh | 1910 | 52 g. | Binghamton Bingoes | New York State League | , | |
| Jack Fox | fox---004joh | 1910 | no g. | Wheeling Stogies | Central League | , | |
| Jack Fox | fox---004joh | 1910 | 22 g. | Grand Rapids Raiders | Central League | , | |
| John Fox | fox---001joh | 1910 | 12 g. | Norfolk Tars | Virginia League | , | |
| John Fox | 1910 | 35 g. | Lincoln Railsplitters | Western League | , | ||
| Walter Frambes | 1910 | 88 g. | St. Joseph Drummers | Western League | , | ||
| Nicholas Francisco | 1910 | 49 g. | Charlotte Hornets | Carolina Association | , | ||
| Archie Frankenberry | 1910 | 30 g. | East Liverpool Potters | Ohio-Pennsylvania League | , | ||
| Walter Frantz | frantz001wal | 1910 | 14 g. | San Antonio Bronchos | Texas League | , | |
| Buck Freeman | freema003joh | 1910 | 113 g. | Harrisburg Senators | Tri-State League | , | |
| James Freeman | freema004jam | 1910 | Sioux City Packers | Western League | , | ||
| Jerry Freeman | freema001fra | 1910 | 169 g. | Toledo Mud Hens | American Association | , | |
| Harry Freese | freese001har | 1910 | 35 g. | Larned Wheat Kings | Kansas State League | , | |
| Tony Fremer | fremer001ant | 1910 | 130 g. | Waterloo Boosters | Illinois-Indiana-Iowa League | , | |
| Charlie French | french001cha | 1910 | 9 g. | Boston | American League | Boston, MA | |
| Charlie French | french001cha | 1910 | 41 g. | Chicago | American League | Chicago, IL | |
| Win French | french001win | 1910 | 1 g. | Oakland Oaks | Pacific Coast League | , | |
| Ernest Frick | frick-001jam | 1910 | 69 g. | Baltimore Orioles | Eastern League | , | |
| Bill Friel | friel-001wil | 1910 | 23 g. | Columbus Senators | American Association | , | |
| Joseph Friel | 1910 | 50 g. | Haverhill Hustlers | New England League | , | ||
| John Frill | frill-001joh | 1910 | 19 g. | Jersey City Skeeters | Eastern League | , | |
| John Frill | frill-001joh | 1910 | 10 g. | New York | American League | New York, NY | |
| Jacob Fromholtz | 1910 | 46 g. | East Liverpool Potters | Ohio-Pennsylvania League | , | ||
| Leonard Frost | 1910 | Ingersoll Watch | BucksCo | , | |||
| Phifer Fullenwider | 1910 | 38 g. | Columbia Gamecocks | South Atlantic League | , | ||
| W. A. Fuller | 1910 | 108 g. | Arkansas City Grays | Kansas State League | , | ||
| Harris Fulton | 1910 | 30 g. | Goldsboro Giants | Eastern Carolina League | , | ||
| L. J. Fulton | 1910 | 40 g. | Chehalis Gophers | Washington State League | , | ||
| Alta Fulwider | 1910 | 65 g. | Ellsworth Blues | Central Kansas League | , | ||
| Albert Furchner | 1910 | 5/19- | Sioux City Packers | Western League | , | ||
| Albert Furchner | 1910 | +7/10-7/17+ | Milwaukee Brewers | American Association | , | ||
| Arthur Fury | 1910 | 29 ab | Salina Trade Winners | Central Kansas League | , | ||
| Frederick Gaarde | 1910 | 39 g. | Hastings Brickmakers | Nebraska State League | , | ||
| George Gaddy | 1910 | 11 g. | Tacoma Tigers | Northwestern League | , | ||
| George Gaddy | 1910 | 12 g. | Calgary Bronchos | Western Canada League | , | ||
| Edward Gagnier | gagnie001edw | 1910 | 156 g. | Lincoln Railsplitters | Western League | , | |
| Fred Gaiser | gaiser001fre | 1910 | 44 g. | Holyoke Papermakers | Connecticut State League | , | |
| Humes Galbraith | 1910 | +6/23 | Muskogee Navigators | Western Association | , | ||
| Humes Galbraith | 1910 | +8/17-9/8+ | Louisville Colonels | American Association | , | ||
| Joseph Galgano | 1910 | 21 g. | St. Joseph Drummers | Western League | , | ||
| Harry Galvin | 1910 | 67 g. | Fayetteville Highlanders | Eastern Carolina League | , | ||
| James Ganier | ganier001jam | 1910 | Grafton | Pennsylvania West Virginia | , | ||
| Earle Gardner | gardne001ear | 1910 | 86 g. | New York | American League | New York, NY | |
| Elmer Gardner | 1910 | 121 g. | Appleton Papermakers | Wisconsin-Illinois League | , | ||
| Larry Gardner | gardne004wil | 1910 | 113 g. | Boston | American League | Boston, MA | |
| Luther Gardner | gardne001lut | 1910 | 133 g. | Shreveport Pirates | Texas League | , | |
| James Garman | 1910 | 98 g. | Charlotte Hornets | Carolina Association | , | ||
| Jesse Garrett | 1910 | 42 g. | Portland Beavers | Pacific Coast League | , | ||
| Garrison | 1910 | 39 g. | Yazoo City Zoos | Cotton States League | , | ||
| Joseph Garrity | garrit001jos | 1910 | 20 g. | Altoona Rams | Tri-State League | , | |
| Richard Garrity | 1910 | 101 g. | Arkansas City Grays | Kansas State League | , | ||
| Richard Garrity | 1910 | Newton Railroaders | Kansas State League | , | |||
| Richard Garrity | 1910 | Lyons Lions | Kansas State League | , | |||
| Jim Garry | garry-001jim | 1910 | Springfield Ponies | Connecticut State League | , | ||
| Leo Garvin | garvin001lee | 1910 | 57 g. | Shreveport Pirates | Texas League | , | |
| Paul Garzee | 1910 | 106 g. | Hastings Brickmakers | Nebraska State League | , | ||
| Prince Gaskell | 1910 | 35 g. | Harrisburg Senators | Tri-State League | , | ||
| Edward Gastmeyer | gastme001edw | 1910 | 72 g. | Rocky Mount Railroaders | Eastern Carolina League | , | |
| William Gaston | gaston003wil | 1910 | 109 g. | Danville Red Sox | Virginia League | , | |
| George Gates | 1910 | 74 g. | Goldsboro Giants | Eastern Carolina League | , | ||
| Dale Gear | gear--001dal | 1910 | 138 g. | Shreveport Pirates | Texas League | , | |
| Henry Gebeau | 1910 | Hamilton MT | Independent | , | |||
| Edward Geehan | 1910 | 5/16- | 33 g. | Calgary Bronchos | Western Canada League | , | |
| Edward Geehan | 1910 | +9/6-9/23+ | Tacoma Cubs | Washington State League | , | ||
| Arthur Geist | 1910 | 35 g. | Lincoln Railsplitters | Western League | , | ||
| Arthur Geist | 1910 | 82 g. | Sapulpa Oilers | Western Association | , | ||
| Thomas George | 1910 | Indianapolis Indians | American Association | , | |||
| Thomas George | 1910 | 59 g. | York White Roses | Tri-State League | , | ||
| H. O. Gerhardt | 1910 | 79 g. | Beeville Orange Growers | Southwest Texas League | , | ||
| Harry Gerloski | 1910 | 27 g. | Cadillac Chiefs | Michigan State League | , | ||
| Jake Gettman | gettma001jac | 1910 | 132 g. | Newark Indians | Eastern League | , | |
| Gus Getz | getz--001gus | 1910 | 54 g. | Boston | National League | Boston, MA | |
| John Geyer | geyer-001joh | 1910 | 40 g. | Erie Sailors | Ohio-Pennsylvania League | , | |
| John Geyer | geyer-001joh | 1910 | 81 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | |
| Ollie Gfroerer | gfroer001oli | 1910 | McLeansboro Billikens | Kentucky-Illinois-Tennessee League | , | ||
| Herbert Gianelli | 1910 | Buff.-DoldQuality | Independent | , | |||
| Frederick Gibbs | 1910 | 36 g. | Bridgeport Orators | Connecticut State League | , | ||
| Frederick Gibbs | 1910 | Hartford Senators | Connecticut State League | , | |||
| John Gibson | 1910 | 22 g. | Saginaw Wa-was | Southern Michigan League | , | ||
| Edward Giencke | 1910 | 50 g. | Adrian Yeggs | Southern Michigan League | , | ||
| Henry Giesel | 1910 | 51 g. | Battle Creek Crickets | Southern Michigan League | , | ||
| Thomas Giffin | 1910 | 67 g. | Wellington Dukes | Kansas State League | , | ||
| Thomas? Giffin | 1910 | +9/25+ | Topeka Jayhawks | Western League | , | ||
| Gilbert | 1910 | 42 g. | Zanesville Potters | Central League | , | ||
| Jack Gilbert | gilber005joh | 1910 | Binghamton Bingoes | New York State League | , | ||
| Jack Gilbert | gilber005joh | 1910 | Wilkes-Barre Barons | New York State League | , | ||
| Rufus Gilbert | gilber001ruf | 1910 | 34 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Rufus Gilbert | gilber001ruf | 1910 | Bradley College | College | , | ||
| William Gilchrist | gilchr001w-- | 1910 | 40 g. | Moose Jaw Robin Hoods | Western Canada League | , | |
| William Gilchrist | gilchr001w-- | 1910 | Regina Bone Pilers | Western Canada League | , | ||
| Roy Gill | gill--002roy | 1910 | 5 g. | Los Angeles Angels | Pacific Coast League | , | |
| Roy Gill | gill--002roy | 1910 | El Paso | , | |||
| Roy Gill | gill--002roy | 1910 | no g. | Philadelphia | National League | Philadelphia, PA | |
| Roy Gill | gill--002roy | 1910 | 8/2- | Lancaster Red Roses | Tri-State League | , | |
| Warren Gill | gill--001war | 1910 | 162 g. | Minneapolis Millers | American Association | , | |
| Grover Gillen | gillen001gro | 1910 | 114 g. | Kalamazoo Kazoos | Southern Michigan League | , | |
| James Gillespie | 1910 | 74 g. | Rocky Mount Railroaders | Eastern Carolina League | , | ||
| Gilligan | 1910 | +8/8+ | Toledo Mud Hens | American Association | , | ||
| Eddie Gilligan | gillig001edw | 1910 | 41 g. | Erie Sailors | Ohio-Pennsylvania League | , | |
| Hub Gilmore | 1910 | 23 g. | Wilmington Sailors | Eastern Carolina League | , | ||
| Charlie Girard | girard002cha | 1910 | 15 g. | York White Roses | Tri-State League | , | |
| Charlie Girard | girard002cha | 1910 | 9/14-10/11 | Philadelphia | National League | Philadelphia, PA | |
| Fred Glass | 1910 | 18 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| Fred Glass | 1910 | 13 g. | Lincoln Abes | Illinois-Missouri League | , | ||
| Gleason | 1910 | 46 g. | Sapulpa Oilers | Western Association | , | ||
| Harry Gleason | gleaso001har | 1910 | Utica Utes | New York State League | , | ||
| Harry Gleason | gleaso001har | 1910 | Binghamton Bingoes | New York State League | , | ||
| Ed Gnadinger | gnadin001edw | 1910 | Freeport Pretzels | Northern Association | , | ||
| Ed Gnadinger | gnadin001edw | 1910 | 68 g. | Madison Senators | Wisconsin-Illinois League | , | |
| John Godwin | godwin001joh | 1910 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Edmund Goes | goes--001edw | 1910 | 72 g. | Terre Haute Stags | Central League | , | |
| Edward Goettel | 1910 | 40 g. | Johnstown Johnnies | Tri-State League | , | ||
| Johnny Gonding | gondin001joh | 1910 | 106 g. | Omaha Rourkes | Western League | , | |
| Daniel Gondolfi | 1910 | 71 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Daniel Gondolfi | 1910 | Greenwood Chauffeurs | Cotton States League | , | |||
| Clyde Goodman | 1910 | 126 g. | Winona Pirates | Minnesota-Wisconsin League | , | ||
| Goodwin | 1910 | 12 g. | Holyoke Papermakers | Connecticut State League | , | ||
| Clyde Goodwin | goodwi001cly | 1910 | 18 g. | Memphis Turtles | Southern Association | , | |
| Brooks Gordon | gordon001bro | 1910 | 73 g. | Waco Navigators | Texas League | , | |
| William Gorman | 1910 | 80 g. | Red Wing Manufacturers | Minnesota-Wisconsin League | , | ||
| Grover Goshorn | 1910 | 47 g. | Newark Newks | Ohio State League | , | ||
| Irwin Gough | 1910 | 103 g. | New Haven Prairie Hens | Connecticut State League | , | ||
| Hank Gowdy | gowdy-001hen | 1910 | 139 g. | Dallas Giants | Texas League | , | |
| Hank Gowdy | gowdy-001hen | 1910 | 9/13- | 7 g. | New York | National League | New York, NY |
| Mike Grady | grady-002mic | 1910 | 22 g. | Chattanooga Lookouts | Southern Association | , | |
| Mike Grady | grady-002mic | 1910 | Little Rock | Southern Association | , | ||
| Charlie Graham | graham002cha | 1910 | 7 g. | Sacramento Sacts | Pacific Coast League | , | |
| George Graham | 1910 | 70 g. | Omaha Rourkes | Western League | , | ||
| Oscar Graham | graham001osc | 1910 | Indianapolis Indians | American Association | , | ||
| Oscar Graham | graham001osc | 1910 | Milwaukee Brewers | American Association | , | ||
| Peaches Graham | graham002geo | 1910 | 110 g. | Boston | National League | Boston, MA | |
| Bill Grahame | graham003wil | 1910 | 11 g. | Chattanooga Lookouts | Southern Association | , | |
| Bill Grahame | graham003wil | 1910 | -6/14 | 9 g. | St. Louis | American League | St. Louis, MO |
| Lee Gramley | gramle001lee | 1910 | Clay Center Cubs | Central Kansas League | , | ||
| Jack Graney | graney002joh | 1910 | Cleveland | American League | Cleveland, OH | ||
| Benjamin Grant | grant-001ben | 1910 | Kearney Kapitalists | Nebraska State League | , | ||
| Benjamin Grant | grant-001ben | 1910 | Red Cloud Cloud | Nebraska State League | , | ||
| Arthur Granville | granvi001art | 1910 | 66 g. | Columbia Gamecocks | South Atlantic League | , | |
| Arthur Granville | granvi001art | 1910 | 13 g. | Spokane Indians | Northwestern League | , | |
| Arthur Granville | granvi001art | 1910 | Columbus Foxes | South Atlantic League | , | ||
| Dorset Graves | 1910 | Oshkosh Indians | Wisconsin-Illinois League | , | |||
| Frank Graves | graves002fra | 1910 | 123 g. | Winona Pirates | Minnesota-Wisconsin League | , | |
| Charles Gray | 1910 | Columbia Univ. | College | , | |||
| Homer Gray | 1910 | 112 g. | Kearney Kapitalists | Nebraska State League | , | ||
| Leonard Gray | gray--001leo | 1910 | 35 g. | Fremont Pathfinders | Nebraska State League | , | |
| Wilder Gray | 1910 | Joplin Miners | Western Association | , | |||
| Grayson | 1910 | 30 g. | Lethbridge Miners | Western Canada League | , | ||
| Grayson | 1910 | Brandon Angels | Western Canada League | , | |||
| Danny Green | green-001edw | 1910 | 44 g. | Burlington Pathfinders | Central Association | , | |
| Frank Green | green-002fra | 1910 | 52 g. | Pekin Celestials | Illinois-Missouri League | , | |
| Frank Green | green-002fra | 1910 | 11 g. | Kearney Kapitalists | Nebraska State League | , | |
| Roy Green | 1910 | 61 g. | Lansing Senators | Southern Michigan League | , | ||
| Ernest Greenwell | 1910 | , | |||||
| Emil Grefe | 1910 | 86 g. | Evansville River Rats | Central League | , | ||
| Ed Gremminger | gremmi001lor | 1910 | 136 g. | Montgomery Climbers | Southern Association | , | |
| John Gribben | 1910 | Montgomery Climbers | Southern Association | , | |||
| John Gribben | 1910 | New Orleans Pelicans | Southern Association | , | |||
| John Gribben | 1910 | 73 g. | Fort Worth Panthers | Texas League | , | ||
| Edward Griffin | 1910 | +3/5+ | 18 g. | San Francisco Seals | Pacific Coast League | , | |
| Hank Griffin | griffi004jam | 1910 | 5/24-6/25 | 8 g. | San Antonio Bronchos | Texas League | , |
| Hank Griffin | griffi004jam | 1910 | 24 g. | Atlanta Crackers | Southern Association | , | |
| Steve Griffin | griffi001ste | 1910 | 116 g. | Danville Red Sox | Virginia League | , | |
| Jack Grim | grim--001joh | 1910 | Portsmouth Truckers/Petersburg Goobers | Virginia League | , | ||
| Paul Grimes | grimes001pau | 1910 | 28 g. | Regina Bone Pilers | Western Canada League | , | |
| Paul Grimes | grimes001pau | 1910 | Lethbridge Miners | Western Canada League | , | ||
| Myron Grimshaw | grimsh001myr | 1910 | 62 g. | Toronto Maple Leafs | Eastern League | , | |
| Henry Groesbeck | 1910 | Univ. of Texas | College | , | |||
| William Groeschow | groesc001wil | 1910 | 139 g. | Terre Haute Stags | Central League | , | |
| James Grogan | 1910 | +8/10+ | Huron MI | Independent | , | ||
| John Grogan | grogan004joh | 1910 | 51 g. | Rochester Roosters | Minnesota-Wisconsin League | , | |
| John Grogan | 1910 | 102 g. | Dayton Veterans | Central League | , | ||
| John Grogan | 1910 | 20 g. | Burlington Pathfinders | Central Association | , | ||
| John Grogan | 1910 | Muscatine | Independent | , | |||
| John Grogan | 1910 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |||
| John Grogan | 1910 | +8/10+ | Huron MI | Independent | , | ||
| Henry Groh | 1910 | 100 g. | Oshkosh Indians | Wisconsin-Illinois League | , | ||
| Henry Grohs | 1910 | Great Bend Millers | Kansas State League | , | |||
| Henry Grohs | 1910 | Wellington Dukes | Kansas State League | , | |||
| Ernie Groth | groth-001ern | 1910 | Port Washington | Lake Shore League | , | ||
| Harvey Grubb | grubb-002har | 1910 | 12 g. | Winston-Salem Twins | Carolina Association | , | |
| Herbert Grubb | grubb-001her | 1910 | Albany Senators | New York State League | , | ||
| Herbert Grubb | grubb-001her | 1910 | Binghamton Bingoes | New York State League | , | ||
| Whitey Guese | guese-001the | 1910 | 18 g. | Montgomery Climbers | Southern Association | , | |
| Jasper Guhl | 1910 | Bluffton Babes | Northern State of Indiana League | , | |||
| Cecil Gunter | gunter001c-- | 1910 | Rome | Georgia Alabama League | , | ||
| Louis Gutierrez | 1910 | 29 g. | Greenwood Chauffeurs | Cotton States League | , | ||
| Louis Gutierrez | 1910 | Vicksburg Hill Billies | Cotton States League | , | |||
| Wilfred Gutierrez | guitte001wil | 1910 | 103 g. | Meridian White Ribbons | Cotton States League | , | |
| Isaac Guyn | guyn--001how | 1910 | 67 g. | Portland Beavers | Pacific Coast League | , | |
| Isaac Guyn | guyn--001how | 1910 | 40 g. | Montesano Farmers | Washington State League | , | |
| Gwinn | 1910 | 48 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | ||
| Frederick Haag | 1910 | 33 ab | Manhattan Maroons | Central Kansas League | , | ||
| Haas | 1910 | 14 g. | Lyons Lions | Kansas State League | , | ||
| Tom Hackett | hacket001tho | 1910 | +4/22+ | Oakland Invaders/Merced Fig Growers | California State League | , | |
| Hubert Hadley | hadley001hub | 1910 | 112 g. | Evansville River Rats | Central League | , | |
| Frank Hafford | haffor001fra | 1910 | 77 g. | Lancaster Red Roses | Tri-State League | , | |
| Leo Hafford | haffor001leo | 1910 | 37 g. | Trenton Tigers | Tri-State League | , | |
| Kurt Hageman | 1910 | 33 g. | Denver Grizzlies | Western League | , | ||
| Joseph Haggin | 1910 | Vancouver WA | Independent | , | |||
| Lee Haight | 1910 | g. ? | Texas League | , | |||
| Lee Haight | 1910 | 84 ab | Concordia Travelers | Central Kansas League | , | ||
| Lee Haight | 1910 | Sabetha | Eastern Kansas League | , | |||
| Glenn Hale | hale--001gle | 1910 | 84 g. | Cadillac Chiefs | Michigan State League | , | |
| Bob Hall | hall--004rob | 1910 | Baltimore Orioles | Eastern League | , | ||
| Clyde Hall | 1910 | 14 g. | Seattle Giants | Northwestern League | , | ||
| Marc Hall | hall--001mar | 1910 | 32 g. | Joplin Miners | Western Association | , | |
| Marc Hall | hall--001mar | 1910 | 8 g. | St. Louis | American League | St. Louis, MO | |
| Otto Hambacher | 1910 | 18 g. | New Britain Perfectos | Connecticut State League | , | ||
| Hamilton | 1910 | Clay Center Cubs | Central Kansas League | , | |||
| Billy Hamilton | hamilt006wil | 1910 | 41 g. | Lynn Shoemakers | New England League | , | |
| James Hamilton | 1910 | 135 g. | Hannibal Cannibals | Central Association | , | ||
| Walter Hammersley | 1910 | 20 g. | Greensboro Champs | Carolina Association | , | ||
| Eddie Hammond | hammon001edw | 1910 | Salt Lake City | Inter-Mountain League | , | ||
| Eddie Hammond | hammon001edw | 1910 | Hamilton MT | Independent | , | ||
| Harry Hammond | hammon001har | 1910 | Denver Grizzlies | Western League | , | ||
| Harry Hammond | hammon001har | 1910 | Sioux City Packers | Western League | , | ||
| Thomas Hanby | 1910 | Umpire | Central Association | , | |||
| Thomas Hanby | 1910 | Umpire | Blue Grass League | , | |||
| Ray Hancock | 1910 | +5/15+ | Toledo Mud Hens | American Association | , | ||
| Ray Hancock | 1910 | 32 g. | Mansfield Reformers | Ohio-Pennsylvania League | , | ||
| Mike Handiboe | handib001alo | 1910 | 50 g. | Goldsboro Giants | Eastern Carolina League | , | |
| Charles Hanford | 1910 | 133 g. | Jersey City Skeeters | Eastern League | , | ||
| Hanks | 1910 | Wilmington Sailors | Eastern Carolina League | , | |||
| Arthur Hanks | hanks-001art | 1910 | +7/26+ | Huntingdon PA | Independent | , | |
| John Hanks | 1910 | Fond du Lac Giants | Wisconsin-Illinois League | , | |||
| Larry Hannafin | hannaf001law | 1910 | 62 g. | Portsmouth Truckers/Petersburg Goobers | Virginia League | , | |
| John Hannah | 1910 | , | |||||
| George Harbison | 1910 | Waco Navigators | Texas League | , | |||
| George Harbison | 1910 | San Antonio Bronchos | Texas League | , | |||
| Omer Hardgrove | 1910 | 39 g. | Indianapolis Indians | American Association | , | ||
| Jack Hardy | hardy-001joh | 1910 | 7 g. | Washington | American League | Washington, DC | |
| Jack Hardy | hardy-001joh | 1910 | 31 g. | Montreal Royals | Eastern League | , | |
| George Hargrove | 1910 | 15 g. | Macomb Potters | Illinois-Missouri League | , | ||
| Warrick Hargrove | 1910 | 21 g. | Zanesville Potters | Central League | , | ||
| Warrick Hargrove | 1910 | 86 g. | Macomb Potters | Illinois-Missouri League | , | ||
| Hugh Harkins | 1910 | 19 g. | Binghamton Bingoes | New York State League | , | ||
| Hugh Harkins | 1910 | 41 g. | Lancaster Red Roses | Tri-State League | , | ||
| Hugh Harkins | 1910 | Williamsport Millionaires | Tri-State League | , | |||
| William Harkins | 1910 | 45 g. | Oakland Oaks | Pacific Coast League | , | ||
| Con Harlow | harlow001con | 1910 | 107 g. | Tulsa Oilers | Western Association | , | |
| Con Harlow | harlow001con | 1910 | Joplin Miners | Western Association | , | ||
| Con Harlow | harlow001con | 1910 | Guthrie Senators | Western Association | , | ||
| George Harm | 1910 | 103 g. | Hastings Brickmakers | Nebraska State League | , | ||
| George Harm | 1910 | 11 g. | Chillicothe Infants | Ohio State League | , | ||
| Jerry Harms | 1910 | 77 g. | Aurora Islanders | Wisconsin-Illinois League | , | ||
| William Harmuth | harmut001wil | 1910 | - 9/21 | 104 g. | Guthrie Senators | Western Association | , |
| William Harmuth | harmut001wil | 1910 | 15 g. | Rockford Reds | Wisconsin-Illinois League | , | |
| Alexander Harper | 1910 | 94 g. | Medicine Hat Mad Hatters/Saskatoon Berrypickers | Western Canada League | , | ||
| Daniel Harrell | 1910 | 126 g. | Frankfort Statesmen | Blue Grass League | , | ||
| Ewing Harris | harris001ewi | 1910 | 31 g. | Clarksville Volunteers | Kentucky-Illinois-Tennessee League | , | |
| Joe Harris | harris007jos | 1910 | 19 g. | Willimantic Colts | Connecticut Association | , | |
| Joseph Harris | harris002jos | 1910 | 13 g. | Burlington Pathfinders | Central Association | , | |
| Joseph Harris | 1910 | 101 g. | Rockford Reds | Wisconsin-Illinois League | , | ||
| William Harris | 1910 | 94 g. | Lansing Senators | Southern Michigan League | , | ||
| Harrison | 1910 | 16 g. | San Antonio Bronchos | Texas League | , | ||
| Charlie Harrison | 1910 | Birmingham Barons | Southern Association | , | |||
| Charlie Harrison | 1910 | 16 g. | San Antonio Bronchos | Texas League | , | ||
| Charlie Harrison | 1910 | Taylor TX | Independent | , | |||
| Otto Harrison | 1910 | Great Bend Millers | Kansas State League | , | |||
| Otto Harrison | 1910 | Lyons Lions | Kansas State League | , | |||
| Harry Harrod | harrod001har | 1910 | 101 g. | Aurora Islanders | Wisconsin-Illinois League | , | |
| Hanson Harsey | 1910 | Reading Pretzels | Tri-State League | , | |||
| Hanson Harsey | 1910 | +5/28+ | Binghamton Bingoes | New York State League | , | ||
| Hart | 1910 | 11 g. | McKeesport Tubers | Ohio-Pennsylvania League | , | ||
| Hub Hart | hart--004jam | 1910 | Montgomery Climbers | Southern Association | , | ||
| Jimmy Hart | hart--003jam | 1910 | 119 g. | Hartford Senators | Connecticut State League | , | |
| Louis Hartman | hartma003fre | 1910 | 11 g. | Fremont Pathfinders | Nebraska State League | , | |
| Louis Hartman | hartma003fre | 1910 | 107 g. | Utica Utes | New York State League | , | |
| Roy Hartzell | hartze001roy | 1910 | 151 g. | St. Louis | American League | St. Louis, MO | |
| Joseph Harville | 1910 | +6/11+ | Missouri AC | Independent | , | ||
| Robert Hassler | 1910 | 28 g. | Lyons Lions | Kansas State League | , | ||
| Ira Hastings | hastin001ira | 1910 | Mount Vernon Merchants | Southern Illinois League | , | ||
| Ira Hastings | hastin001ira | 1910 | 48 g. | Harrisburg Miners | Kentucky-Illinois-Tennessee League | , | |
| Thomas Hasty | 1910 | 21 g. | Vernon Tigers | Pacific Coast League | , | ||
| Harry Hatch | hatch-002har | 1910 | St. Joseph Drummers | Western League | , | ||
| Emil Hauser | hauser001emi | 1910 | +6/27+ | 42 g. | Harrisburg Senators | Tri-State League | , |
| Michael Hauser | 1910 | 119 g. | Augusta Tourists | South Atlantic League | , | ||
| Thomas Hawkins | hawkin001tho | 1910 | 32 g. | Des Moines Boosters | Western League | , | |
| Ben Hayworth | haywor001ben | 1910 | South Bend Bronchos | Central League | , | ||
| Dwight Hazelton | hazelt001dwi | 1910 | Buff.-PierceArrow | Independent | , | ||
| Head | 1910 | 66 g. | Lethbridge Miners | Western Canada League | , | ||
| Dennis Healey | 1910 | Petaluma/Elmhurst Incubators | Central California League | , | |||
| Ed Hearne | hearn-001edm | 1910 | 6/9-6/10 | Boston | American League | Boston, MA | |
| Ed Hearne | hearn-001edm | 1910 | 23 g. | Waterbury Finnegans | Connecticut State League | , | |
| Hughie Hearne | hearne001hug | 1910 | 94 g. | Newark Indians | Eastern League | , | |
| Robert Heck | 1910 | 42 g. | Lansing Senators | Southern Michigan League | , | ||
| George Heckert | hecker001geo | 1910 | Trenton Tigers | Tri-State League | , | ||
| Heiser | 1910 | 16 g. | Holland Wooden Shoes | Michigan State League | , | ||
| John Helding | 1910 | 7/-7/ | Duluth White Sox | Minnesota-Wisconsin League | , | ||
| John Helding | 1910 | 7/22- | Red Wing Manufacturers | Minnesota-Wisconsin League | , | ||
| James Helms | helm--001jam | 1910 | 49 g. | Jacksonville Jays | South Atlantic League | , | |
| George Helmund | helmun001geo | 1910 | Trenton Tigers | Tri-State League | , | ||
| Albert Henderson | 1910 | 114 g. | Adrian Yeggs | Southern Michigan League | , | ||
| Glen Henderson | 1910 | 115 g. | Bay City | Southern Michigan League | , | ||
| William Henderson | 1910 | 138 g. | Battle Creek Crickets | Southern Michigan League | , | ||
| Jack Hendricks | hendri002joh | 1910 | Denver Grizzlies | Western League | , | ||
| Claude Hendrix | hendri001cla | 1910 | 17-4. | Cheyenne WY | Independent | , | |
| Rhoddy Hendrix | 1910 | 12 g. | Seattle Giants | Northwestern League | , | ||
| Rhoddy Hendrix | 1910 | 20 g. | Waterloo Boosters | Illinois-Indiana-Iowa League | , | ||
| Clarence Henley | henley001cla | 1910 | San Francisco Seals | Pacific Coast League | , | ||
| Noah Henline | henlin001noa | 1910 | Buffalo Bisons | Eastern League | , | ||
| Joe Hennessey | hennes001jos | 1910 | 96 g. | Trenton Tigers | Tri-State League | , | |
| Henry Henninger | 1910 | 94 g. | Shreveport Pirates | Texas League | , | ||
| Arthur Hensling | 1910 | 22 g. | Vernon Tigers | Pacific Coast League | , | ||
| Earn Herbert | 1910 | 37 g. | Shreveport Pirates | Texas League | , | ||
| Andrew Herbst | 1910 | 75 g. | New Haven Prairie Hens | Connecticut State League | , | ||
| Fredrick Herche | 1910 | 69 g. | Des Moines Boosters | Western League | , | ||
| Joseph Herold | 1910 | 142 g. | Zanesville Potters | Central League | , | ||
| Eddie Herr | herr--002edw | 1910 | Flint Vehicles | Southern Michigan League | , | ||
| Michael Herrick | 1910 | +5/11+ | 12 g. | Kearney Kapitalists | Nebraska State League | , | |
| Michael Herrick | 1910 | 27 g. | Hastings Brickmakers | Nebraska State League | , | ||
| Andrew Herrod | 1910 | Blytheville | Northeast Arkansas League | , | |||
| Hess | hess--001art | 1910 | 127 g. | Utica Utes | New York State League | , | |
| John Hess | hess--001joh | 1910 | 35 g. | Northampton Meadowlarks | Connecticut State League | , | |
| William Hessberger | 1910 | 128 g. | Jackson Convicts | Southern Michigan League | , | ||
| William Hessler | 1910 | 137 g. | Elmira Colonels | New York State League | , | ||
| Herbert Hester | hester001her | 1910 | 22 g. | Waterloo Boosters | Illinois-Indiana-Iowa League | , | |
| Byron Hewitt | 1910 | Ellsworth Blues | Central Kansas League | , | |||
| Byron Hewitt | 1910 | Bay City Rice Eaters | Southwest Texas League | , | |||
| William Heyniger | heynig000--- | 1910 | +8/3+ | Rye Beach NH | Independent | , | |
| Charles Hickman | hickma001cha | 1910 | 129 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | |
| John Hickman | hickma001gor | 1910 | 31 g. | Mobile Sea Gulls | Southern Association | , | |
| John Hickman | hickma001gor | 1910 | New Orleans Pelicans | Southern Association | , | ||
| John Hickman | hickma001gor | 1910 | Montgomery Climbers | Southern Association | , | ||
| Rowe Hicks | hicks-001row | 1910 | 110 g. | Greensboro Champs | Carolina Association | , | |
| Ed Higgins | 1910 | 19 g. | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Ed Higgins | 1910 | 13 g. | Terre Haute Stags | Central League | , | ||
| Eddie Higgins | higgin003tho | 1910 | -7/31 | 2 g. | St. Louis | National League | St. Louis, MO |
| Charles Hilbert | hilber000--- | 1910 | 31 g. | New Castle Nocks | Ohio-Pennsylvania League | , | |
| John Hilding | hildin001joh | 1910 | Duluth White Sox | Minnesota-Wisconsin League | , | ||
| John Hilding | hildin001joh | 1910 | Red Wing Manufacturers | Minnesota-Wisconsin League | , | ||
| Bill Hill | hill--002bil | 1910 | Central California League | , | |||
| William Hille | 1910 | 122 g. | Columbus Foxes | South Atlantic League | , | ||
| Ed Hilley | hilley001edw | 1910 | 29 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | |
| William Hillinger | 1910 | 140 g. | Zanesville Potters | Central League | , | ||
| Jack Himes | himes-001joh | 1910 | 137 g. | Scranton Miners | New York State League | , | |
| Harry Hinchman | hinchm001har | 1910 | 171 g. | Toledo Mud Hens | American Association | , | |
| Hunkey Hines | hines-001hun | 1910 | Joliet Jolly-ites/Sterling Infants | Northern Association | , | ||
| James Hines | 1910 | 5/14-6/22 | Holland Wooden Shoes | Michigan State League | , | ||
| John Hinton | hinton001joh | 1910 | 118 g. | Canton Deubers | Ohio-Pennsylvania League | , | |
| Philip Hinton | 1910 | +5/8+ | 56 g. | East Liverpool Potters | Ohio-Pennsylvania League | , | |
| Philip Hinton | 1910 | 12 g. | Kalamazoo Kazoos | Southern Michigan League | , | ||
| Philip Hinton | 1910 | 27 g. | Zanesville Potters | Central League | , | ||
| Albert Hippensteel | 1910 | York White Roses | Tri-State League | , | |||
| Vern Hirsch | 1910 | 48 g. | Auburn Athletics | Missouri-Iowa-Nebraska-Kansas League | , | ||
| Walter Hirsch | 1910 | 11 g. | Dallas Giants | Texas League | , | ||
| Roy Hirschfeld | 1910 | 73 g. | Beardstown/Jacksonville Jacks | Illinois-Missouri League | , | ||
| Bert Hise | hise--001ber | 1910 | 24 g. | Galveston Sand Crabs | Texas League | , | |
| Frank Hobbs | hobbs-001fra | 1910 | Maryville Comets | Missouri-Iowa-Nebraska-Kansas League | , | ||
| Frank Hobbs | hobbs-001fra | 1910 | Auburn Athletics | Missouri-Iowa-Nebraska-Kansas League | , | ||
| Hobson | 1910 | Maryville Comets | Missouri-Iowa-Nebraska-Kansas League | , | |||
| Hobson | 1910 | 59 ab | Clay Center Cubs | Central Kansas League | , | ||
| Hodges | 1910 | 11 g. | Brandon Angels | Western Canada League | , | ||
| Jack Hoey | hoey--001joh | 1910 | 112 g. | Waterbury Finnegans | Connecticut State League | , | |
| Augie Hoff | hoff--001aug | 1910 | 14 g. | Macon Peaches | South Atlantic League | , | |
| Frank Hoffman | 1910 | Fort Wayne Billikens | Central League | , | |||
| Izzy Hoffman | hoffma004har | 1910 | 137 g. | Providence Grays | Eastern League | , | |
| Richard Hoffman | 1910 | 138 g. | Galveston Sand Crabs | Texas League | , | ||
| Marty Hogan | hogan-002mar | 1910 | Lancaster Red Roses | Tri-State League | , | ||
| Timothy Hogan | 1910 | Jackson Convicts | Southern Michigan League | , | |||
| Wallace Hogan | hogan-002wal | 1910 | 105 g. | Vernon Tigers | Pacific Coast League | , | |
| Bradley Hogue | hogue-001b-- | 1910-24 | , | ||||
| Wesley Holder | 1910 | 75 g. | Paris Bourbonites | Blue Grass League | , | ||
| Joseph Holland | hollan001jos | 1910 | Clemson Univ. | College | , | ||
| Joseph Holland | hollan001jos | 1910 | 123 g. | Roanoke Tigers | Virginia League | , | |
| William Hollenbeck | 1910 | 61 g. | Omaha Rourkes | Western League | , | ||
| Charles Hollingsworth | 1910 | 16 g. | Newark Newks | Ohio State League | , | ||
| Ray Hollingsworth | 1910 | 38 g. | Newark Newks | Ohio State League | , | ||
| Hollis | 1910 | 1 g. | Sacramento Sacts | Pacific Coast League | , | ||
| Ducky Holmes | holmes003jam | 1910 | Toledo Mud Hens | American Association | , | ||
| Jim Holmes | holmes002jam | 1910 | 33 g. | Rochester Bronchos | Eastern League | , | |
| Milan Holmes | holmes001mil | 1910 | Winnipeg Maroons | Western Canada League | , | ||
| Milan Holmes | holmes001mil | 1910 | Brandon Angels | Western Canada League | , | ||
| Robert Holmes | 1910 | 20 g. | Newark Indians | Eastern League | , | ||
| Jeff Holmquist | 1910 | 46 g. | Mansfield Reformers | Ohio-Pennsylvania League | , | ||
| Chester Holstrom | 1910 | +5/1+ | Minne.-Werdens | Independent | , | ||
| Chester Holstrom | 1910 | 6/21- | 86 g. | Duluth White Sox | Minnesota-Wisconsin League | , | |
| Earl? Holt | 1910 | Winston-Salem Twins | Carolina Association | , | |||
| Earl? Holt | 1910 | Spartanburg Spartans | Carolina Association | , | |||
| Pearl Holycross | holycr001pea | 1910 | 102 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | |
| Buck Hooker | hooker001wil | 1910 | 99 g. | Danville Red Sox | Virginia League | , | |
| John Hooker | 1910 | 30 g. | La Crosse Outcasts | Minnesota-Wisconsin League | , | ||
| John Hooker | 1910 | 10 g. | Regina Bone Pilers | Western Canada League | , | ||
| Edwin Hooper | 1910 | 93 g. | Trenton Tigers | Tri-State League | , | ||
| Harry Hooper | hooper001har | 1910 | 155 g. | Boston | American League | Boston, MA | |
| Clifford Hoover | hoover001cli | 1910 | 122 g. | Waterbury Finnegans | Connecticut State League | , | |
| Sam Hope | hope--001sam | 1910 | Waterbury Finnegans | Connecticut State League | , | ||
| Bill Hopke | hopke-001wil | 1910 | 138 g. | Wilkes-Barre Barons | New York State League | , | |
| Buck Hopkins | hopkin004joh | 1910 | Danville Speakers | Illinois-Indiana-Iowa League | , | ||
| Lee Hopkins | hopkin001leo | 1910 | +6/19-9/25+ | Sheboygan WI | Independent | , | |
| Tony Horath | horath001ant | 1910 | Great Bend Millers | Kansas State League | , | ||
| Tony Horath | horath001ant | 1910 | Lyons Lions | Kansas State League | , | ||
| Horn | 1910 | 3 g. | Freeport Pretzels | Northern Association | , | ||
| Horn | 1910 | Zanesville Potters | Central League | , | |||
| Horn | 1910 | Umpire | Central League | , | |||
| Edward Hornsby | 1910 | 32 g. | Houston Buffaloes | Texas League | , | ||
| John Hornung | 1910 | 131 g. | Portsmouth Cobblers | Ohio State League | , | ||
| Harry Horton | horton002har | 1910 | 10 g. | Pekin Celestials | Illinois-Missouri League | , | |
| Walter Horton | 1910 | Morrisville | BucksCo | , | |||
| Ed Householder | househ001edw | 1910 | 28 g. | Vancouver Beavers | Northwestern League | , | |
| Ben Houser | houser001ben | 1910 | Philadelphia | American League | Philadelphia, PA | ||
| Joseph Houser | 1910 | Youngstown Steelmen | Ohio-Pennsylvania League | , | |||
| Joseph Houser | 1910 | Youngstown Steelmen | Ohio-Pennsylvania League | , | |||
| Joe Hovlik | hovlik001jos | 1910 | 24 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Joe Hovlik | hovlik001jos | 1910 | 1 g. | Washington | American League | Washington, DC | |
| Howard | 1910 | DesM-Old Taverns | Independent | , | |||
| Howard | 1910 | Maryville Comets | Missouri-Iowa-Nebraska-Kansas League | , | |||
| Benjamin Howard | howard003ben | 1910 | Selma AL | Independent | , | ||
| Ernie Howard | howard002ern | 1910 | Savannah Indians | South Atlantic League | , | ||
| Paul Howard | howard001pau | 1910 | , | ||||
| Robert Howard | howard005rob | 1910 | 35 g. | Wilmington Sailors | Eastern Carolina League | , | |
| Chauncey Howell | howell002cha | 1910 | 211 ab | Beloit/Chapman | Central Kansas League | , | |
| Clem Howell | 1910 | 34 g. | Shreveport Pirates | Texas League | , | ||
| William Howie | howie-001wil | 1910 | 22 g. | Larned Wheat Kings | Kansas State League | , | |
| Daniel Howley | howley001dan | 1910 | 57 g. | Indianapolis Indians | American Association | , | |
| Harry Hoyt | 1910 | 37 g. | Clarksville Volunteers | Kentucky-Illinois-Tennessee League | , | ||
| J. M. Hudson | 1910 | 16 g. | Wilson Tobacconists | Eastern Carolina League | , | ||
| J. M. Hudson | 1910 | 13 g. | Wilmington Sailors | Eastern Carolina League | , | ||
| George Hughes | hughes003geo | 1910 | Wichita Jobbers | Western League | , | ||
| James Hughes | hughes004jam | 1910 | 34 g. | Maryville Comets | Missouri-Iowa-Nebraska-Kansas League | , | |
| James Hughes | hughes004jam | 1910 | Jacksonville Jacks | Northern Association | , | ||
| Tom Hughes | hughes005tho | 1910 | 23 g. | New York | American League | New York, NY | |
| Berne Hughey | 1910 | 38 g. | Kalamazoo Kazoos | Southern Michigan League | , | ||
| Rudy Hulswitt | hulswi001rud | 1910 | 63 g. | St. Louis | National League | St. Louis, MO | |
| William Humes | 1910 | 45 g. | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Al Hummell | 1910 | Marion Diggers | Ohio State League | , | |||
| Bert Humphries | humphr002alb | 1910 | 4/16- | 11 g. | Philadelphia | National League | Philadelphia, PA |
| Bert Humphries | humphr002alb | 1910 | 20 g. | Scranton Miners | New York State League | , | |
| Quintus Hunt | 1910 | 20 g. | Oshkosh Indians | Wisconsin-Illinois League | , | ||
| William Hunter | 1910 | 35 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| William Hunter | 1910 | 61 g. | Keokuk Indians | Central Association | , | ||
| George Hurlburt | hurlbu001geo | 1910 | Umpire | Texas League | , | ||
| Bill Hurley | hurley003wil | 1910 | Moose Jaw Robin Hoods | Western Canada League | , | ||
| Jerry Hurley | hurley001jer | 1910 | 44 g. | Syracuse Stars | New York State League | , | |
| James Hurst | 1910 | 103 g. | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | ||
| Harry Huston | huston001har | 1910 | 50 g. | Lowell Tigers | New England League | , | |
| Jack Huston | huston001jac | 1910 | Umpire | Northwestern League | , | ||
| Frank Hutchinson | hutchi001fra | 1910 | 98 g. | Clarinda Antelopes | Missouri-Iowa-Nebraska-Kansas League | , | |
| Fred Hutchinson | hutchi001fre | 1910 | Salina Trade Winners | Central Kansas League | , | ||
| Ham Hyatt | hyatt-002rob | 1910 | 74 g. | Pittsburgh | National League | Pittsburgh, PA | |
| Robert Hydon | 1910 | +6/23-7/4+ | Fulton | Central New York League | , | ||
| John Hyzer | 1910 | +8/28+ | Beliot Independents | Independent | , | ||
| William Ingerton | 1910 | 91 g. | Altoona Rams | Tri-State League | , | ||
| Charles Irby | irby--001cha | 1910 | 39 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | |
| Charles Irby | irby--001cha | 1910 | 31 g. | Moose Jaw Robin Hoods | Western Canada League | , | |
| Howard Ireland | 1910 | 110 g. | Rockford Reds | Wisconsin-Illinois League | , | ||
| Paul Irmscher | irmsch001pau | 1910 | 128 g. | Monmouth Browns | Central Association | , | |
| Arthur Irwin | irwin-001art | 1910 | New York | American League | New York, NY | ||
| Albert Isbell | 1910 | 87 g. | Winnipeg Maroons | Western Canada League | , | ||
| James Ison | 1910 | 102 g. | Macon Peaches | South Atlantic League | , | ||
| Jackson | 1910 | 37 g. | Bridgeport Orators | Connecticut State League | , | ||
| Andrew Jackson | 1910 | 37 g. | Greensboro Champs | Carolina Association | , | ||
| Charles Jackson | jackso005cha | 1910 | Topeka Jayhawks | Western League | , | ||
| Charles Jackson | jackso005cha | 1910 | Wichita Jobbers | Western League | , | ||
| George Jackson | 1910 | 144 g. | Dallas Giants | Texas League | , | ||
| George Jackson | 1910 | 5 g. | Memphis Turtles | Southern Association | , | ||
| James Jackson | jackso005jam | 1910 | 100 g. | Norfolk Tars | Virginia League | , | |
| Jim Jackson | jackso002jam | 1910 | 136 g. | Scranton Miners | New York State League | , | |
| Joe Jackson | jackso004jos | 1910 | 136 g. | New Orleans Pelicans | Southern Association | , | |
| Joe Jackson | jackso004jos | 1910 | 20 g. | Cleveland | American League | Cleveland, OH | |
| Owen Jackson | jackso001owe | 1910 | 23 g. | Lynchburg Shoemakers | Virginia League | , | |
| Walter Jackson | 1910 | 72 g. | Spartanburg Spartans | Carolina Association | , | ||
| William Jackson | jackso008wil | 1910 | 18 g. | Portsmouth Truckers/Petersburg Goobers | Virginia League | , | |
| Michael Jacobs | 1910 | 74 g. | Wilson Tobacconists | Eastern Carolina League | , | ||
| Otto Jacobs | 1910 | 74 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | ||
| Beany Jacobson | jacobs001alb | 1910 | 36 g. | Grand Rapids Raiders | Central League | , | |
| William Jacobson | 1910 | 16 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| William Jacobson | 1910 | 55 g. | Battle Creek Crickets | Southern Michigan League | , | ||
| Dudley James | 1910 | Greensboro Champs | Carolina Association | , | |||
| Dudley James | 1910 | Anderson Electricians | Carolina Association | , | |||
| William James | james-032--- | 1910 | 108 g. | Columbus Senators | American Association | , | |
| William James | james-032--- | 1910 | Kansas City Blues | American Association | , | ||
| Frank Jansa | jansa-001fra | 1910 | 55 g. | Chehalis Gophers | Washington State League | , | |
| Ray Jansen | jansen001ray | 1910 | 9/10 | St. Louis | American League | St. Louis, MO | |
| Henry Jarnagin | 1910 | Grinnell (IA) | College | , | |||
| Henry Jarnagin | 1910 | 53 g. | Wichita Jobbers | Western League | , | ||
| Ferd Jarrott | jarrot001fer | 1910 | 105 g. | Red Cloud Cloud | Nebraska State League | , | |
| F. E. Jarvis | 1910 | 17 g. | Haverhill Hustlers | New England League | , | ||
| Henry Jasper | 1910 | 61 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| Henry Jasper | 1910 | Jacksonville Jacks | Northern Association | , | |||
| A. G. Jeffries | jeffri001a-- | 1910 | Umpire | Texas League | , | ||
| Otto Jehl | 1910 | Paragould Scouts | Northeast Arkansas League | , | |||
| Daniel Jenkins | 1910 | Decatur Commodores | Northern Association | , | |||
| Daniel Jenkins | 1910 | Adrian Yeggs | Southern Michigan League | , | |||
| Claude Jennings | 1910 | Abilene Reds | Central Kansas League | , | |||
| A. C. Jensen | 1910 | Jacksonville Jacks | Northern Association | , | |||
| Si Jensen | jensen001erv | 1910 | 35 g. | Vancouver Beavers | Northwestern League | , | |
| Guy Jepson | 1910 | 103 ab | Junction City Soldiers | Central Kansas League | , | ||
| Joe Jerger | jerger001jos | 1910 | 33 g. | Quincy Vets | Central Association | , | |
| Benjamin Jewell | jewell001ben | 1910 | 135 g. | Wheeling Stogies | Central League | , | |
| William Jewell | 1910 | 210 ab | Ellsworth Blues | Central Kansas League | , | ||
| Johns | 1910 | Yazoo City Zoos | Cotton States League | , | |||
| Harold Johns | johns-001har | 1910 | 38 g. | Atlanta Crackers | Southern Association | , | |
| Carlos Johnson | 1910 | +5/1+ | 13 g. | Oklahoma City Indians | Texas League | , | |
| Carlos Johnson | 1910 | 281 ab | Concordia Travelers | Central Kansas League | , | ||
| Charlie Johnson | johnso005cha | 1910 | 134 g. | Utica Utes | New York State League | , | |
| Claus Johnson | 1910 | 111 g. | Wausau Lumberjacks | Minnesota-Wisconsin League | , | ||
| Elmer Johnson | 1910 | 135 g. | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| George Johnson | 1910 | 48 g. | St. Joseph Drummers | Western League | , | ||
| John Johnson | johnso001ral | 1910 | 121 g. | New Castle Nocks | Ohio-Pennsylvania League | , | |
| Otis Johnson | johnso001oti | 1910 | 140 g. | Jersey City Skeeters | Eastern League | , | |
| Rube Johnson | 1910 | 6/22 | Minneapolis Millers | American Association | , | ||
| George Johnston | 1910 | Hastings MI | Independent | , | |||
| James Johnston | 1910 | 25 g. | Seattle Giants | Northwestern League | , | ||
| James Johnston | 1910 | 94 g. | Ottumwa Packers | Central Association | , | ||
| William Johnstone | 1910 | 115 g. | Marion Diggers | Ohio State League | , | ||
| Edward Jokerst | 1910 | 33 g. | Wichita Jobbers | Western League | , | ||
| Edward Jokerst | 1910 | Clarinda Antelopes | Missouri-Iowa-Nebraska-Kansas League | , | |||
| Sam Jolly | 1910 | 16 g. | Shreveport Pirates | Texas League | , | ||
| Sam Jolly | 1910 | Caruthersville | Northeast Arkansas League | , | |||
| Ben Jones | 1910 | 105 g. | McPherson Merry Macks | Kansas State League | , | ||
| Ernest Jones | 1910 | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | |||
| Ernest Jones | 1910 | Hopkinsville Hoppers | Kentucky-Illinois-Tennessee League | , | |||
| Isom Jones | jones-001iso | 1910 | 109 g. | Yazoo City Zoos | Cotton States League | , | |
| Jim Jones | jones-022jam | 1910 | Montreal Royals | Eastern League | , | ||
| Ross Jones | jones-003ros | 1910 | +9/3+ | La Crosse Outcasts | Minnesota-Wisconsin League | , | |
| Ross Jones | jones-003ros | 1910 | Racine Belles | Wisconsin-Illinois League | , | ||
| William Jones | 1910 | 22 g. | Lowell Tigers | New England League | , | ||
| William Jones | 1910 | 57 g. | Portsmouth Cobblers | Ohio State League | , | ||
| Dutch Jordan | jordan001ado | 1910 | 142 g. | Atlanta Crackers | Southern Association | , | |
| Roy Jorstad | 1910 | 32 g. | Hutchinson Salt Packers | Kansas State League | , | ||
| Michael Joyce | joyce-002mic | 1910 | 27 g. | Montreal Royals | Eastern League | , | |
| Michael Joyce | joyce-002mic | 1910 | 94 g. | Wilkes-Barre Barons | New York State League | , | |
| Frank Jude | jude--001fra | 1910 | 167 g. | Lincoln Railsplitters | Western League | , | |
| Walt Justis | justis001wal | 1910 | 45 g. | Dayton Veterans | Central League | , | |
| Frank Justus | 1910 | 42 g. | Superior Brickmakers | Nebraska State League | , | ||
| Gustav Jutzi | jutzi-001joh | 1910 | 94 g. | Fond du Lac Giants | Wisconsin-Illinois League | , | |
| Bob Kahl | kahl--001rob | 1910 | +6/9+ | Topeka Jayhawks | Western League | , | |
| Bob Kahl | kahl--001rob | 1910 | Sabetha | Eastern Kansas League | , | ||
| Alfred Kaiser | 1910 | 111 g. | Paris Bourbonites | Blue Grass League | , | ||
| George Kalkhoff | kalkho002geo | 1910 | 118 g. | Macon Peaches | South Atlantic League | , | |
| Jerry Kane | kane--001jer | 1910 | +4/3+ | Fort Worth Panthers | Texas League | , | |
| Jerry Kane | kane--001jer | 1910 | Houston Buffaloes | Texas League | , | ||
| Jim Kane | kane--003jam | 1910 | 158 g. | Omaha Rourkes | Western League | , | |
| Patrick Kane | kane--002pat | 1910 | 52 g. | Altoona Rams | Tri-State League | , | |
| Jay Kanzler | kanzle001jay | 1910 | 39 g. | Fort Worth Panthers | Texas League | , | |
| Elias Kaphan | kaphan001eli | 1910 | 43 g. | Galveston Sand Crabs | Texas League | , | |
| Charles Karnell | karnel001cha | 1910 | Elkhart Blue Sox | Indiana-Michigan League | , | ||
| Henry Karsten | karste001hen | 1910 | 16 g. | Muskegon Speed Boys | Michigan State League | , | |
| Henry Katz | 1910 | 21 g. | Akron Champs | Ohio-Pennsylvania League | , | ||
| Bennie Kauff | 1910 | Parkersburg Parkers | Virginia Valley League | , | |||
| Richard Kaufman | 1910 | +8/15+ | Topeka Jayhawks | Western League | , | ||
| Richard Kaufman | 1910 | St. Joseph Drummers | Western League | , | |||
| Bill Kay | kay---001wal | 1910 | 127 g. | Albany Senators | New York State League | , | |
| John Keady | keady-001j-- | 1910 | 16 g. | Worcester Busters | New England League | , | |
| George Kearney | 1910 | 141 g. | Lansing Senators | Southern Michigan League | , | ||
| Bobby Keefe | keefe-001rob | 1910 | 42 g. | Montreal Royals | Eastern League | , | |
| Pat Keefe | keefe-001pat | 1910 | Univ. of Maine | College | , | ||
| Pat Keefe | keefe-001pat | 1910 | North Adams | Independent | , | ||
| Thomas Keeler | keeler002--- | 1910 | +5/16+ | Boonville IN | Independent | , | |
| Bill Keen | keen--002wil | 1910 | +6/14+ | Clarksville Volunteers | Kentucky-Illinois-Tennessee League | , | |
| Bill Keen | keen--002wil | 1910 | +9/3+ | Indianapolis Indians | American Association | , | |
| Roy Keener | 1910 | 122 g. | Spokane Indians | Northwestern League | , | ||
| John Kehoe | kehoe-001joh | 1910 | 100 g. | Grand Rapids Raiders | Central League | , | |
| Edward Keiber | 1910 | 21 g. | Atlanta Crackers | Southern Association | , | ||
| Bill Keister | keiste001wil | 1910 | 110 g. | Williamsport Millionaires | Tri-State League | , | |
| Charles Keith | 1910 | U. of Texas | College | , | |||
| Mickey Keliher | kelihe001mau | 1910 | 25 g. | Portsmouth Truckers/Petersburg Goobers | Virginia League | , | |
| Hugh Kellackey | kellac001hug | 1910 | 95 g. | Calgary Bronchos | Western Canada League | , | |
| Ed Kellar | 1910 | 14 g. | Arkansas City Grays | Kansas State League | , | ||
| Orlando Keller | 1910 | 85 g. | New Castle Nocks | Ohio-Pennsylvania League | , | ||
| Bill Kelley | kelley006wil | 1910 | Fresno Tigers | California State League | , | ||
| Mike Kelley | kelley002mic | 1910 | St. Paul Saints | American Association | , | ||
| Bill Kellogg | kellog001wil | 1910 | Dallas Giants | Texas League | , | ||
| Billy Kelly | kelly-006wil | 1910 | 5/2- | 2 g. | St. Louis | National League | St. Louis, MO |
| Billy Kelly | kelly-006wil | 1910 | 63 g. | St. Paul Saints | American Association | , | |
| George Kelly | kelly-005geo | 1910 | Spartanburg Spartans | Carolina Association | , | ||
| James Kelly | kelly-002jam | 1910 | 112 g. | Anderson Electricians | Carolina Association | , | |
| John Kelly | kelly-003joh | 1910 | 145 g. | Newark Indians | Eastern League | , | |
| Red Kelly | kelly-002alb | 1910 | 6/18-8/6 | Chicago | American League | Chicago, IL | |
| Red Kelly | kelly-002alb | 1910 | 57 g. | Des Moines Boosters | Western League | , | |
| Speed Kelly | kelly-002rob | 1910 | 90 g. | Denver Grizzlies | Western League | , | |
| Bill Kemmer | kemmer001wil | 1910 | 32 g. | Falls City Colts | Missouri-Iowa-Nebraska-Kansas League | , | |
| Bill Kemmer | kemmer001wil | 1910 | 11 g. | Oklahoma City Indians | Texas League | , | |
| George Kempf | 1910-11 | U. of Illinois | College | , | |||
| Albert Kench | 1910 | 24 g. | Kewanee Boilermakers | Central Association | , | ||
| John Kendall | 1910 | 98 g. | Newark Newks | Ohio State League | , | ||
| John Kendall | 1910 | 25 g. | Indianapolis Indians | American Association | , | ||
| Kennedy | kenned010--- | 1910 | 48 g. | Raymond Cougars | Washington State League | , | |
| Albert Kennedy | kenned002alb | 1910 | Aurora Islanders | Wisconsin-Illinois League | , | ||
| Doc Kennedy | kenned001doc | 1910 | MLB Umpire | American League | , | ||
| James Kennedy | kenned006jam | 1910 | 123 g. | Troy Trojans | New York State League | , | |
| John Kennedy | kenned009joh | 1910 | 28 g. | Los Angeles Angels | Pacific Coast League | , | |
| William Kennoy | kennoy001wil | 1910 | Wash. & Lee | College | , | ||
| Taylor Kensel | kensel001tay | 1910 | 138 g. | Ottumwa Packers | Central Association | , | |
| Maurice Kent | 1910 | 38 g. | Ottumwa Packers | Central Association | , | ||
| William Kenworthy | 1910 | 87 g. | Zanesville Potters | Central League | , | ||
| Henry Kern | 1910 | 89 g. | Topeka Jayhawks | Western League | , | ||
| Henry Kern | 1910 | 28 g. | Indianapolis Indians | American Association | , | ||
| John Kernan | 1910 | 114 g. | Rochester Roosters | Minnesota-Wisconsin League | , | ||
| Joseph Kernan | 1910 | 52 g. | La Crosse Outcasts | Minnesota-Wisconsin League | , | ||
| John Kerr | 1910 | 110 g. | Trenton Tigers | Tri-State League | , | ||
| Dan Kerwin | kerwin001dan | 1910 | 120 g. | Hannibal Cannibals | Central Association | , | |
| Dan Kerwin | kerwin001dan | 1910 | 25 g. | Mobile Sea Gulls | Southern Association | , | |
| Philip Ketter | ketter001phi | 1910 | 72 g. | York White Roses | Tri-State League | , | |
| Philip Ketter | ketter001phi | 1910 | Johnstown Johnnies | Tri-State League | , | ||
| Henry Keupper | 1910 | 37 g. | Nashville Volunteers | Southern Association | , | ||
| Hubert Keupper | 1910 | +5/10+ | Clinton Champs | Illinois-Missouri League | , | ||
| Hugo Keupper | 1910 | +5/10+ | 14 g. | Clinton Champs | Illinois-Missouri League | , | |
| Charles Keyes | 1910 | 18 g. | Quincy Vets | Central Association | , | ||
| John Keyes | 1910 | 132 g. | Elmira Colonels | New York State League | , | ||
| Daniel Kick | 1910 | 121 g. | Eau Claire Commissioners | Minnesota-Wisconsin League | , | ||
| John Kiernan | kierna001joh | 1910 | 20 g. | Waterbury Finnegans | Connecticut State League | , | |
| Felix Kilduff | 1910 | 14 g. | Arkansas City Grays | Kansas State League | , | ||
| Felix Kilduff | 1910 | +8/9+ | Frontenac KS | Independent | , | ||
| John Kilgore | 1910 | +8/10+ | Kalamazoo Kazoos | Southern Michigan League | , | ||
| Red Killefer | killef001wad | 1910 | 106 g. | Washington | American League | Washington, DC | |
| Ed Killian | killia001edw | 1910 | -7/15 | 11 g. | Detroit | American League | Detroit, MI |
| Ed Killian | killia001edw | 1910 | 10 g. | Toronto Maple Leafs | Eastern League | , | |
| Joseph Killian | killia001jos | 1910 | Winona Pirates | Minnesota-Wisconsin League | , | ||
| Edward Killilay | killil001ed- | 1910 | 19 g. | Arkansas City Grays | Kansas State League | , | |
| Edward Killilay | killil001ed- | 1910 | 19 g. | Arkansas City Grays | Kansas State League | , | |
| Harry Killilay | 1910 | 75 ab | Salina Trade Winners | Central Kansas League | , | ||
| Harry Killilay | 1910 | 75 ab | Salina Trade Winners | Central Kansas League | , | ||
| John Killilay | killil001joh | 1910 | 44 g. | Spokane Indians | Northwestern League | , | |
| Martin Killilay | killil001mar | 1910 | 99 g. | Arkansas City Grays | Kansas State League | , | |
| Martin Killilay | killil001mar | 1910 | 99 g. | Arkansas City Grays | Kansas State League | , | |
| Edward Killingsworth | killin001ed- | 1910 | New Haven Prairie Hens | Connecticut State League | , | ||
| Charlie Kilpatrick | kilpat001cha | 1910 | 138 g. | Galesburg Pavers | Central Association | , | |
| Peter Kilroy | kilroy001orv | 1910 | 24 g. | St. Paul Saints | American Association | , | |
| Frank King | king--004fra | 1910 | Winston-Salem Twins | Carolina Association | , | ||
| Peter King | king--001pet | 1910 | 137 g. | Bay City | Southern Michigan League | , | |
| Ed Kinsella | kinsel001edw | 1910 | -8/10 | 10 g. | St. Louis | American League | St. Louis, MO |
| Joseph Kipp | kipp--001jos | 1910 | 107 g. | San Antonio Bronchos | Texas League | , | |
| Joseph Kipp | kipp--001jos | 1910 | Galveston Sand Crabs | Texas League | , | ||
| Enos Kirkpatrick | 1910 | Portsmouth Truckers/Petersburg Goobers | Virginia League | , | |||
| Harry Kirsch | kirsch001har | 1910 | 4/16-4/29 | Cleveland | American League | Cleveland, OH | |
| Harry Kirsch | kirsch001har | 1910 | 25 g. | Akron Champs | Ohio-Pennsylvania League | , | |
| Rube Kisinger | kising001cha | 1910 | Jersey City Skeeters | Eastern League | , | ||
| Rube Kisinger | kising001cha | 1910 | Buffalo Bisons | Eastern League | , | ||
| William Kitchens | kitche002wil | 1910 | 15 g. | Fort Worth Panthers | Texas League | , | |
| Albert Kite | kite--001alb | 1910 | 59 g. | Wilmington Sailors | Eastern Carolina League | , | |
| Malachi Kittridge | kittri001mal | 1910 | 6 g. | Elgin Kittens | Northern Association | , | |
| William Klinck | klinck001wil | 1910 | 24 g. | Meridian White Ribbons | Cotton States League | , | |
| Rudy Kling | kling-001rud | 1910 | Clarinda Antelopes | Missouri-Iowa-Nebraska-Kansas League | , | ||
| Knapp | 1910 | 11 g. | Aberdeen Black Cats | Washington State League | , | ||
| Levi Knapp | 1910 | 54 g. | Lincoln Railsplitters | Western League | , | ||
| Adolph Knaupp | 1910 | 104 g. | Victoria Rosebuds | Southwest Texas League | , | ||
| Cotton Knaupp | knaupp001hen | 1910 | 112 g. | Victoria Rosebuds | Southwest Texas League | , | |
| Cotton Knaupp | knaupp001hen | 1910 | 8/30- | 18 g. | Cleveland | American League | Cleveland, OH |
| William Knaupp | 1910 | 89 g. | Beeville Orange Growers | Southwest Texas League | , | ||
| Grover Knight | 1910 | 38 g. | Albany Senators | New York State League | , | ||
| Peter Knisely | 1910 | 45 g. | Saginaw Wa-was | Southern Michigan League | , | ||
| Punch Knoll | knoll-001cha | 1910 | 139 g. | Dayton Veterans | Central League | , | |
| Joe Knotts | knotts002jos | 1910 | 16 g. | Johnstown Johnnies | Tri-State League | , | |
| Joe Knotts | knotts002jos | 1910 | 68 g. | Memphis Turtles | Southern Association | , | |
| Baxter Knox | 1910 | 22 g. | Meridian White Ribbons | Cotton States League | , | ||
| William Knox | 1910 | 45 g. | Richmond Pioneers | Blue Grass League | , | ||
| Ben Koehler | koehle001ber | 1910 | 131 g. | South Bend Bronchos | Central League | , | |
| Elmer Koestner | koestn001elm | 1910 | 4/23- | 27 g. | Cleveland | American League | Cleveland, OH |
| Edward Kohl | 1910 | 50 g. | Duluth White Sox | Minnesota-Wisconsin League | , | ||
| Edward Kohl | 1910 | 69 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Henry Kohler | 1910 | St.L.-Hyde Park | Independent | , | |||
| Frederick Kommers | 1910 | 107 g. | Galesburg Pavers | Central Association | , | ||
| Ed Konetchy | konetc001edw | 1910 | 144 g. | St. Louis | National League | St. Louis, MO | |
| Mike Konnick | konnic001mic | 1910 | 5/24 | Cincinnati | National League | Cincinnati, OH | |
| Mike Konnick | konnic001mic | 1910 | 20 g. | Wilkes-Barre Barons | New York State League | , | |
| Mike Konnick | konnic001mic | 1910 | 30 g. | Buffalo Bisons | Eastern League | , | |
| Mike Konnick | konnic001mic | 1910 | 20 g. | Louisville Colonels | American Association | , | |
| Arthur Kourik | 1910 | 99 g. | Superior Red Sox | Minnesota-Wisconsin League | , | ||
| David Kraft | kraft-001dav | 1910 | 34 g. | Hannibal Cannibals | Central Association | , | |
| Edmund Kraft | 1910 | +7/11-7/14+ | York White Roses | Tri-State League | , | ||
| Eugene Krapp | 1910 | 57 g. | Portland Beavers | Pacific Coast League | , | ||
| Bernard Kratzberg | 1910 | 4/7 | Portland Beavers | Pacific Coast League | , | ||
| Bernard Kratzberg | 1910 | +5/21+ | Stockton Millers | California State League | , | ||
| Bernard Kratzberg | 1910 | +7/6-8/10+ | Spokane Indians | Northwestern League | , | ||
| Charles Krebs | 1910 | Staunton Military | College | , | |||
| Raymond Krebs | 1910 | 109 g. | Columbus Foxes | South Atlantic League | , | ||
| Ralph Kreitz | kreitz001ral | 1910 | 28 g. | Winnipeg Maroons | Western Canada League | , | |
| Ralph Kreitz | kreitz001ral | 1910 | Jacksonville Jacks | Northern Association | , | ||
| Charles Kremer | 1910 | Dixon IL Browns | Independent | , | |||
| Kreuger | 1910 | 36 g. | Canton Deubers | Ohio-Pennsylvania League | , | ||
| Paul Krichell | kriche001pau | 1910 | 102 g. | Montreal Royals | Eastern League | , | |
| George Krick | krick-001geo | 1910 | 31 g. | Superior Red Sox | Minnesota-Wisconsin League | , | |
| George Krick | krick-001geo | 1910 | 31 g. | Superior Red Sox | Minnesota-Wisconsin League | , | |
| Charles Kroy | kroy--001cha | 1910 | 141 g. | South Bend Bronchos | Central League | , | |
| Art Krueger | 1910 | East Liverpool Potters | Ohio-Pennsylvania League | , | |||
| Otto Krueger | kruege002art | 1910 | 99 g. | Lawrence Colts | New England League | , | |
| William Krueger | kruege002wil | 1910 | 92 g. | Winnipeg Maroons | Western Canada League | , | |
| Art Kruger | kruger001art | 1910 | 47 g. | Cleveland | American League | Cleveland, OH | |
| Art Kruger | kruger001art | 1910 | 1 g. | Boston | National League | Boston, MA | |
| Art Kruger | kruger001art | 1910 | 15 g. | Cleveland | American League | Cleveland, OH | |
| Art Kruger | kruger001art | 1910 | 63 g. | Portland Beavers | Pacific Coast League | , | |
| Elmer Kuehn | 1910 | 116 g. | La Crosse Outcasts | Minnesota-Wisconsin League | , | ||
| Jack Kull | kull--001joh | 1910 | 10 g. | Youngstown Steelmen | Ohio-Pennsylvania League | , | |
| Harry Kunkel | kunkel003har | 1910 | Danville Red Sox | Virginia League | , | ||
| Harry Kunkel | kunkel003har | 1910 | Portsmouth Truckers/Petersburg Goobers | Virginia League | , | ||
| Hank Labelle | labell001hen | 1910 | 1 g. | Lawrence Colts | New England League | , | |
| James Lafitte | 1910 | 126 g. | New Orleans Pelicans | Southern Association | , | ||
| Peter LaFlambois | 1910 | Arkansas City Grays | Kansas State League | , | |||
| Peter LaFlambois | 1910 | Hutchinson Salt Packers | Kansas State League | , | |||
| Arthur Lage | 1910 | Kewanee Boilermakers | Central Association | , | |||
| Arthur Lage | 1910 | Monmouth Browns | Central Association | , | |||
| Datus Lagoe | 1910 | 31 g. | Kalamazoo Kazoos | Southern Michigan League | , | ||
| Nicholas Lakaff | 1910 | 38 g. | Wausau Lumberjacks | Minnesota-Wisconsin League | , | ||
| Joe Lake | lake--002jos | 1910 | 37 g. | St. Louis | American League | St. Louis, MO | |
| William Lallier | lallie001wil | 1910 | 60 g. | Lancaster Lanks | Ohio State League | , | |
| Lewis LaLonge | kommer000bil | 1910 | Sacramento Sacts | Pacific Coast League | , | ||
| Bert Lamb | 1910 | 117 g. | Joplin Miners | Western Association | , | ||
| Lambrecht | 1910 | 76 g. | Youngstown Steelmen | Ohio-Pennsylvania League | , | ||
| E. H. Lancaster | 1910 | Arkansas City Grays | Kansas State League | , | |||
| E. H. Lancaster | 1910 | Hutchinson Salt Packers | Kansas State League | , | |||
| George Landreth | 1910 | 81 g. | Topeka Jayhawks | Western League | , | ||
| John Landry | 1910 | 124 g. | Superior Red Sox | Minnesota-Wisconsin League | , | ||
| Frank Lang | 1910 | 102 g. | Oshkosh Indians | Wisconsin-Illinois League | , | ||
| Nig Langdon | langdo001fra | 1910 | 41 g. | Kewanee Boilermakers | Central Association | , | |
| E. Lange | 1910 | 24 g. | Rochester Roosters | Minnesota-Wisconsin League | , | ||
| Frank Lange | lange-001fra | 1910 | 23 g. | Chicago | American League | Chicago, IL | |
| Langfit | 1910 | Guthrie Senators | Western Association | , | |||
| Jack Langley | 1910 | Elgin Kittens | Northern Association | , | |||
| Ed Larkin | larkin004edw | 1910 | +5/8+ | Utica Utes | New York State League | , | |
| Ed Larkin | larkin004edw | 1910 | 59 g. | Springfield Ponies | Connecticut State League | , | |
| Andrew Larsen | larsen004and | 1910 | 26 g. | San Antonio Bronchos | Texas League | , | |
| Purl LaRue | 1910 | +9/18+ | Goshen IN | Independent | , | ||
| Dick Latham | latham001ric | 1910 | 46 g. | Beeville Orange Growers | Southwest Texas League | , | |
| Bill Lattimore | lattim001wil | 1910 | 33 g. | Fort Worth Panthers | Texas League | , | |
| Ralph Lattimore | 1910 | 119 g. | East Liverpool Potters | Ohio-Pennsylvania League | , | ||
| Laughlin | laughl001--- | 1910 | 67 g. | Danville Red Sox | Virginia League | , | |
| Bill Lauterborn | lauter001wil | 1910 | 26 g. | Canton Deubers | Ohio-Pennsylvania League | , | |
| Bill Lauterborn | lauter001wil | 1910 | 10 g. | East Liverpool Potters | Ohio-Pennsylvania League | , | |
| H. LaVelle | 1910 | 100 g. | Evansville River Rats | Central League | , | ||
| James Lavelle | 1910 | Shenandoah Pin Rollers | Missouri-Iowa-Nebraska-Kansas League | , | |||
| James Lavelle | 1910 | Clarinda Antelopes | Missouri-Iowa-Nebraska-Kansas League | , | |||
| James Lavender | 1910 | 45 g. | Providence Grays | Eastern League | , | ||
| Arthur LaVigne | 1910 | 93 g. | Brockton Shoemakers | New England League | , | ||
| Frank Law | law---001fra | 1910 | 19 g. | Aberdeen Black Cats | Washington State League | , | |
| Jack Law | law---001joh | 1910 | 62 g. | Greenwood Chauffeurs | Cotton States League | , | |
| Lawler | 1910 | Meridian White Ribbons | Cotton States League | , | |||
| Jack Lawlor | lawlor001joh | 1910 | Richmond Colts | Virginia League | , | ||
| Andy Lawrence | lawren001and | 1910 | 35 g. | Macon Peaches | South Atlantic League | , | |
| Andy Lawrence | lawren001and | 1910 | 31 g. | Brockton Shoemakers | New England League | , | |
| Frederick Lawrence | lawren001f-- | 1910 | 138 g. | Lansing Senators | Southern Michigan League | , | |
| Mike Lawrence | lawren001mic | 1910 | Marion Boosters | Northern State of Indiana League | , | ||
| John Leber | 1910 | Cleveland Hinkels | Amateur | , | |||
| Austin LeBrand | lebran001aus | 1910 | 16 g. | Seattle Giants | Northwestern League | , | |
| Jack Lee | lee---003joh | 1910 | 22 g. | Jacksonville Jays | South Atlantic League | , | |
| Wyatt Lee | lee---001wya | 1910 | Toronto Maple Leafs | Eastern League | , | ||
| Wyatt Lee | lee---001wya | 1910 | Newark Indians | Eastern League | , | ||
| Clarence Lehr | lehr--001cla | 1910 | 138 g. | Kewanee Boilermakers | Central Association | , | |
| George Leidy | leidy-002geo | 1910 | 83 g. | San Antonio Bronchos | Texas League | , | |
| James Leighty | leight002jam | 1910 | preseason | Superior WI | Independent | , | |
| James Leighty | leight002jam | 1910 | +6/26-7/18+ | Two Harbors MN | Independent | , | |
| James Leighty | leight002jam | 1910 | Chisholm MN | Independent | , | ||
| Sheldon Lejeune | lejeun001she | 1910 | 128 g. | Evansville River Rats | Central League | , | |
| Bill Lelivelt | lelive001wil | 1910 | 5/6 | Detroit | American League | Detroit, MI | |
| Bill Lelivelt | lelive001wil | 1910 | Minneapolis Millers | American Association | , | ||
| Ed Lennox | lennox001jam | 1910 | 110 g. | Brooklyn | National League | Brooklyn, NY | |
| Louis LeRoy | leroy-001lou | 1910 | 4/20 | Boston | American League | Boston, MA | |
| Louis LeRoy | leroy-001lou | 1910 | 46 g. | St. Paul Saints | American Association | , | |
| Tom Letcher | letche001tom | 1910 | 86 g. | Regina Bone Pilers | Western Canada League | , | |
| Albert Leverich | 1910 | Muscatine Pearl Finders | Northern Association | , | |||
| Walter Levings | 1910 | 121 g. | Racine Belles | Wisconsin-Illinois League | , | ||
| Levy | 1910 | 31 g. | Aberdeen Black Cats | Washington State League | , | ||
| Harry Levy | 1910 | 112 g. | Lynchburg Shoemakers | Virginia League | , | ||
| Rube Levy | 1910 | Spokane Indians | Northwestern League | , | |||
| Ed Lewee | lewee-001edw | 1910 | 112 g. | Appleton Papermakers | Wisconsin-Illinois League | , | |
| Lewis | 1910 | 37 g. | Racine Belles | Wisconsin-Illinois League | , | ||
| Lewis | 1910 | 20 g. | Wellington Dukes | Kansas State League | , | ||
| Lewis | 1910 | 10 g. | Clinton Champs | Illinois-Missouri League | , | ||
| Lewis | 1910 | Decatur Commodores | Northern Association | , | |||
| Carl Lewis | lewis-001car | 1910 | 106 g. | Vancouver Beavers | Northwestern League | , | |
| Con Lewis | 1910 | Muscatine Pearl Finders | Northern Association | , | |||
| Dudley Lewis | 1910 | 11 g. | Winchester Hustlers | Blue Grass League | , | ||
| George Lewis | 1910 | 46 g. | Columbia Gamecocks | South Atlantic League | , | ||
| Gordon Lewis | lewis-001gor | 1910 | 81 g. | Columbus Foxes | South Atlantic League | , | |
| James Lewis | 1910 | 125 g. | San Francisco Seals | Pacific Coast League | , | ||
| Joseph Lewis | 1910 | 38 g. | Marion Diggers | Ohio State League | , | ||
| Phil Lewis | lewis-001phi | 1910 | Indianapolis Indians | American Association | , | ||
| Phil Lewis | lewis-001phi | 1910 | Milwaukee Brewers | American Association | , | ||
| Philip Lezie | 1910 | 39 g. | Lethbridge Miners | Western Canada League | , | ||
| Fred Liese | liese-001fre | 1910 | 4/14-4/26 | Boston | National League | Boston, MA | |
| Fred Liese | liese-001fre | 1910 | 80 g. | St. Paul Saints | American Association | , | |
| Albert Linderbeck | linder001alb | 1910 | Madison Senators | Wisconsin-Illinois League | , | ||
| Albert Linderbeck | linder001alb | 1910 | +8/8+ | 83 g. | Aurora Islanders | Wisconsin-Illinois League | , |
| Albert Linderbeck | linder001alb | 1910 | 25 g. | Marion Diggers | Ohio State League | , | |
| Albert Linderbeck | linder001alb | 1910 | 25 g. | Marion Diggers | Ohio State League | , | |
| Albert Linderbeck | linder001alb | 1910 | 83 g. | Aurora Islanders | Wisconsin-Illinois League | , | |
| Chris Lindsay | lindsa001chr | 1910 | 170 g. | Denver Grizzlies | Western League | , | |
| Harry Lindsay | lindsa001ira | 1910 | 38 g. | South Bend Bronchos | Central League | , | |
| John Lindsay | lindsa002joh | 1910 | 206 g. | Vernon Tigers | Pacific Coast League | , | |
| William Lindsay | 1910 | 110 g. | New Orleans Pelicans | Southern Association | , | ||
| Perry Lipe | lipe--001per | 1910 | 126 g. | Macon Peaches | South Atlantic League | , | |
| Paddy Livingston | living001pat | 1910 | 37 g. | Philadelphia | American League | Philadelphia, PA | |
| Arthur Lizzette | lizzet001art | 1910 | 107 g. | Superior Red Sox | Minnesota-Wisconsin League | , | |
| David LLoyd | lloyd-001dav | 1910 | 2 g. | Oakland Oaks | Pacific Coast League | , | |
| David LLoyd | lloyd-001dav | 1910 | 168 g. | Denver Grizzlies | Western League | , | |
| Harry Lloyd | lloyd-002har | 1910 | Paducah Indians | Kentucky-Illinois-Tennessee League | , | ||
| Harry Lloyd | 1910 | Lima Cigarmakers | Ohio State League | , | |||
| Richard Lloyd | 1910 | Lynchburg Shoemakers | Virginia League | , | |||
| Frank Locke | locke-001fra | 1910 | Parkersburg Parkers | Virginia Valley League | , | ||
| Albert Lodell | 1910 | preseason | Portland Beavers | Pacific Coast League | , | ||
| Albert Lodell | 1910 | by 5/15 | 5 g. | Stockton Millers | California State League | , | |
| Albert Lodell | 1910 | +8/7 | WS-Monarchs | Portland City League | , | ||
| Frank Lofton | lofton001fra | 1910 | 123 g. | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Tom Logan | logan-001tho | 1910 | Worcester Busters | New England League | , | ||
| Frank Lohr | lohr--001fra | 1910 | 47 g. | Winnipeg Maroons | Western Canada League | , | |
| Joseph Lohr | 1910 | , | |||||
| Joseph Londrigan | 1910 | 27 g. | Jersey City Skeeters | Eastern League | , | ||
| Joseph Londrigan | 1910 | 46 g. | Utica Utes | New York State League | , | ||
| Frank Long | long--002fra | 1910 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Harry Longley | longle001har | 1910 | 97 g. | Beeville Orange Growers | Southwest Texas League | , | |
| John Loomis | 1910 | 39 g. | Danville Speakers | Illinois-Indiana-Iowa League | , | ||
| Pete Loos | loos--001iva | 1910 | 11 g. | Danville Red Sox | Virginia League | , | |
| Manfred Lothrop | 1910 | 17 g. | Raleigh Red Birds | Eastern Carolina League | , | ||
| Art Loudell | loudel001art | 1910 | 25 g. | Waco Navigators | Texas League | , | |
| Art Loudell | loudel001art | 1910 | 8/13-9/24 | Detroit | American League | Detroit, MI | |
| William Louden | louden001wil | 1910 | 142 g. | Newark Indians | Eastern League | , | |
| Charlie Loudenslager | louden001cha | 1910 | 47 g. | Utica Utes | New York State League | , | |
| Charlie Loudenslager | louden001cha | 1910 | 19 g. | Newark Indians | Eastern League | , | |
| Love | 1910 | 15 g. | Larned Wheat Kings | Kansas State League | , | ||
| Grover Lowdermilk | lowder001gro | 1910 | 45 g. | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Lou Lowdermilk | lowder001lou | 1910 | Freeport Pretzels | Northern Association | , | ||
| William Lucas | lucas-005wil | 1910 | President | Northwestern League | , | ||
| Fred Luchia | lucia-001fre | 1910 | 61 g. | Lynchburg Shoemakers | Virginia League | , | |
| Francis Ludes | 1910 | 255 ab | Salina Trade Winners | Central Kansas League | , | ||
| William Ludwig | 1910 | 34 g. | Portsmouth Cobblers | Ohio State League | , | ||
| William Ludwig | 1910 | 28 g. | Clarinda Antelopes | Missouri-Iowa-Nebraska-Kansas League | , | ||
| Herman Luettke | luettk001her | 1910 | 113 g. | Guthrie Senators | Western Association | , | |
| Charlie Luskey | luskey001cha | 1910 | , | ||||
| William Lussi | 1910 | Spokane Indians | Northwestern League | , | |||
| Lynch | 1910 | 29 g. | Hopkinsville Hoppers | Kentucky-Illinois-Tennessee League | , | ||
| Joseph Lynch | lynch-001jos | 1910 | 89 g. | Lethbridge Miners | Western Canada League | , | |
| Michael Lynch | lynch-002mik | 1910 | 142 g. | Nashville Volunteers | Southern Association | , | |
| Charles Lyons | lyons-003cha | 1910 | 62 g. | Great Bend Millers | Kansas State League | , | |
| Charles Maag | maag--001c-- | 1910 | 145 g. | Dallas Giants | Texas League | , | |
| George Mabry | 1910 | Columbia Gamecocks | South Atlantic League | , | |||
| George Mabry | 1910 | Augusta Tourists | South Atlantic League | , | |||
| Thomas MacIntyre | 1910 | 24 g. | Lynn Shoemakers | New England League | , | ||
| Thomas MacIntyre | 1910 | New Bedford Whalers | New England League | , | |||
| Archie Mack | 1910 | +7/4+ | Delphos KS | Independent | , | ||
| Roy Mack | 1910 | +7/4+ | Delphos KS | Independent | , | ||
| Billy Mackey | mackey003wil | 1910 | +5/18+ | Umpire | Carolina Association | , | |
| Ed Mackey | mackey001a-- | 1910 | Ump-Douglas Az | Bisbee Az | , | ||
| Bunny Madden | madden001tho | 1910 | 14 g. | Boston | American League | Boston, MA | |
| Tommy Madden | madden003tho | 1910 | 4/15 | New York | American League | New York, NY | |
| Tommy Madden | madden003tho | 1910 | 83 g. | San Francisco Seals | Pacific Coast League | , | |
| Tommy Madden | madden003tho | 1910 | 13 g. | Montreal Royals | Eastern League | , | |
| Nick Maddox | maddox001nic | 1910 | -9/12 | 21 g. | Pittsburgh | National League | Pittsburgh, PA |
| Michael Madigan | 1910 | 57 g. | Danville Speakers | Illinois-Indiana-Iowa League | , | ||
| Michael Madigan | 1910 | 54 g. | Williamsport Millionaires | Tri-State League | , | ||
| Michael Madigan | 1910 | Towanda | Independent | , | |||
| Michael Madigan | 1910 | 47 g. | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Michael Madigan | 1910 | 17 g. | Wilkes-Barre Barons | New York State League | , | ||
| Leo Magee | 1910 | 132 g. | Louisville Colonels | American Association | , | ||
| George Magerkurth | 1910 | Rockford Reds | Wisconsin-Illinois League | , | |||
| George Magerkurth | 1910 | 53 g. | Kearney Kapitalists | Nebraska State League | , | ||
| Harl Maggert | magger001har | 1910 | 221 g. | Oakland Oaks | Pacific Coast League | , | |
| Miles Mains | 1910 | 40 g. | Flint Vehicles | Southern Michigan League | , | ||
| Bill Malarkey | malark001wil | 1910 | 20 g. | Buffalo Bisons | Eastern League | , | |
| William Malcomson | 1910 | 15 g. | Johnstown Johnnies | Tri-State League | , | ||
| Herm Malloy | malloy001her | 1910 | Baltimore Orioles | Eastern League | , | ||
| John Malloy | 1910 | Red Wing Manufacturers | Minnesota-Wisconsin League | , | |||
| William Malone | 1910 | , | |||||
| William Maloney | malone005wil | 1910 | 121 g. | Richmond Pioneers | Blue Grass League | , | |
| George Manion | manion001geo | 1910 | 82 g. | Jacksonville Jays | South Atlantic League | , | |
| Edward Manning | 1910 | 4/22- | Worcester Busters | New England League | , | ||
| Edward Manning | 1910 | -9/10 | Lynn Shoemakers | New England League | , | ||
| John Manning | mannin001joh | 1910 | 42 g. | Elmira Colonels | New York State League | , | |
| John Manning | mannin001joh | 1910 | York White Roses | Tri-State League | , | ||
| John Manning | mannin001joh | 1910 | Johnstown Johnnies | Tri-State League | , | ||
| James Manser | 1910 | 38 g. | Jersey City Skeeters | Eastern League | , | ||
| Lou Manske | manske001lou | 1910 | 12 g. | St. Joseph Drummers | Western League | , | |
| Frank Manush | manush001fra | 1910 | 143 g. | New Orleans Pelicans | Southern Association | , | |
| George Manush | 1910 | 143 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Rolla Mapel | 1910 | 31 g. | Great Bend Millers | Kansas State League | , | ||
| Rolla Mapel | 1910 | 15 g. | Kearney Kapitalists | Nebraska State League | , | ||
| Anthony Marhefka | 1910 | 107 g. | Williamsport Millionaires | Tri-State League | , | ||
| Donald Marion | 1910 | 39 g. | Duluth White Sox | Minnesota-Wisconsin League | , | ||
| Rube Marquard | marqua001ric | 1910 | 13 g. | New York | National League | New York, NY | |
| Archie Marshall | marsha001arc | 1910 | 58 g. | Holyoke Papermakers | Connecticut State League | , | |
| Archie Marshall | marsha001arc | 1910 | 58 g. | Johnstown Johnnies | Tri-State League | , | |
| Clarence Marshall | 1910 | Davenport Prodigals | Illinois-Indiana-Iowa League | , | |||
| Clarence Marshall | 1910 | Cananea | Mexico | , | |||
| Clarence Marshall | 1910 | Guadalajara | Mexico | , | |||
| Ray Marshall | 1910 | 119 g. | Columbia Gamecocks | South Atlantic League | , | ||
| Ray Marshall | 1910 | Jacksonville Jays | South Atlantic League | , | |||
| Doc Martell | martel001leo | 1910 | 4/14-6/18 | Boston | National League | Boston, MA | |
| Doc Martell | martel001leo | 1910 | 16 g. | Rochester Bronchos | Eastern League | , | |
| Guy Martin | 1910 | 183 ab | Beloit/Chapman | Central Kansas League | , | ||
| Harry Martin | martin007har | 1910 | 89 g. | Dayton Veterans | Central League | , | |
| Harry? Martin | 1910 | 13 g. | Chehalis Gophers | Washington State League | , | ||
| Prescott Martin | 1910 | 28 g. | Columbia Gamecocks | South Atlantic League | , | ||
| Felix Martinke | martin003fel | 1910 | Vernon Tigers | Pacific Coast League | , | ||
| Felix Martinke | martin003fel | 1910 | Portland Beavers | Pacific Coast League | , | ||
| Mason | 1910 | 25 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| Mason | 1910 | Davenport Prodigals | Illinois-Indiana-Iowa League | , | |||
| Del Mason | mason-001ade | 1910 | Des Moines Boosters | Western League | , | ||
| F. W. Mason | 1910 | 19 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Ferdinand Mason | mason-001f-- | 1910 | 97 g. | Fremont Pathfinders | Nebraska State League | , | |
| Harry Mason | mason-002har | 1910 | 124 g. | Springfield Ponies | Connecticut State League | , | |
| Nel Mason | mason-001nel | 1910 | Umpire | Ohio State League | , | ||
| Everett Masters | 1910 | 15 ab | Junction City Soldiers | Central Kansas League | , | ||
| Alonzo Mathis | 1910 | +5/29+ | Ardmore OK | Independent | , | ||
| Alonzo Mathis | 1910 | Concordia Travelers | Central Kansas League | , | |||
| Alonzo Mathis | 1910 | +9/6+ | Purcell OK | Independent | , | ||
| James Mathis | 1910 | +5/29+ | Ardmore OK | Independent | , | ||
| James Mathis | 1910 | 121 ab | Junction City Soldiers | Central Kansas League | , | ||
| James Mathis | 1910 | +9/6+ | Purcell OK | Independent | , | ||
| Joe Mathis | 1910 | +5/29+ | Ardmore OK | Independent | , | ||
| Joe Mathis | 1910 | +9/6+ | Purcell OK | Independent | , | ||
| Grover Matney | matney001gro | 1910 | 87 g. | Larned Wheat Kings | Kansas State League | , | |
| Al Mattern | matter001alo | 1910 | 51 g. | Boston | National League | Boston, MA | |
| William Matthews | matthe002wil | 1910 | 35 g. | Wilkes-Barre Barons | New York State League | , | |
| Walter Mattick | 1910 | 164 g. | Des Moines Boosters | Western League | , | ||
| Mattie Mattison | 1910 | 117 g. | Bay City | Southern Michigan League | , | ||
| Frank Maxey | 1910 | 21 g. | Topeka Jayhawks | Western League | , | ||
| Frank Maxey | 1910 | 227 ab | Salina Trade Winners | Central Kansas League | , | ||
| Claude Maxwell | 1910 | 76 g. | Paris Bourbonites | Blue Grass League | , | ||
| Earl Mayberry | 1910 | 50 g. | Danville Red Sox | Virginia League | , | ||
| Dan McAleese | mcalee001dan | 1910 | +5/18+ | Altoona Rams | Tri-State League | , | |
| Jack McAleese | mcalee001joh | 1910 | Denver Grizzlies | Western League | , | ||
| Mike McAndrews | mcandr001mic | 1910 | Umpire | Connecticut Association | , | ||
| Harry McArdle | mcardl001har | 1910 | 185 g. | San Francisco Seals | Pacific Coast League | , | |
| Robert McAuley | mcaule001rob | 1910 | 120 g. | Appleton Papermakers | Wisconsin-Illinois League | , | |
| William McAvoy | 1910 | 19 g. | Reading Pretzels | Tri-State League | , | ||
| William McAvoy | 1910 | Northampton Meadowlarks | Connecticut State League | , | |||
| Swat McCabe | mccabe002jam | 1910 | 13 g. | Cincinnati | National League | Cincinnati, OH | |
| Charles McCafferty | mccaff002cha | 1910 | 10 g. | Omaha Rourkes | Western League | , | |
| Jack McCallister | mccall001jac | 1910 | 106 g. | Akron Champs | Ohio-Pennsylvania League | , | |
| Arch McCarthy | mccart001arc | 1910 | Norfolk Tars | Virginia League | , | ||
| Jack McCarthy | mccart003joh | 1910 | Danville Speakers | Illinois-Indiana-Iowa League | , | ||
| Joseph McCarthy | 1910 | 92 g. | Toledo Mud Hens | American Association | , | ||
| Pat McCauley | mccaul001pat | 1910 | 12 g. | Bridgeport Orators | Connecticut State League | , | |
| Edward McCleary | 1910 | Penn State Univ. | College | , | |||
| R. E. McClintock | 1910 | 67 g. | Beeville Orange Growers | Southwest Texas League | , | ||
| R. E. McClintock | 1910 | Brownsville Brownies | Southwest Texas League | , | |||
| John McCloskey | mcclos002jam | 1910 | 31 g. | Wilkes-Barre Barons | New York State League | , | |
| Harry McCloud | mcclou002har | 1910 | Umpire | New York State League | , | ||
| Joseph McCollum | 1910 | 16 g. | Arkansas City Grays | Kansas State League | , | ||
| A. H. McConnell | 1910 | 103 g. | Greenwood Chauffeurs | Cotton States League | , | ||
| Amby McConnell | mcconn001amb | 1910 | 11 g. | Boston | American League | Boston, MA | |
| Amby McConnell | mcconn001amb | 1910 | 33 g. | Chicago | American League | Chicago, IL | |
| Frank McCormick | mccorm002fra | 1910 | 104 g. | Altoona Rams | Tri-State League | , | |
| Frank McCormick | mccorm002fra | 1910 | Harrisburg Senators | Tri-State League | , | ||
| Louis McCormick | mccorm001l-- | 1910 | Victoria Rosebuds | Southwest Texas League | , | ||
| Bill McCorry | mccorr001wil | 1910 | 36 g. | Lynn Shoemakers | New England League | , | |
| James McCreight | 1910 | 34 g. | Erie Sailors | Ohio-Pennsylvania League | , | ||
| Wallace McCrory | 1910 | Chanute KS | Independent | , | |||
| Hugh McCune | 1910 | 90 g. | Worcester Busters | New England League | , | ||
| Frank McDermott | 1910 | 38 g. | Lynn Shoemakers | New England League | , | ||
| Frank McDermott | 1910 | Lowell Tigers | New England League | , | |||
| Frank McDermott | 1910 | Worcester Busters | New England League | , | |||
| Clarence McDonald | 1910 | 116 g. | Terre Haute Stags | Central League | , | ||
| Edward McDonald | mcdona002edw | 1910 | 128 g. | Toronto Maple Leafs | Eastern League | , | |
| Joe McDonald | mcdona001mal | 1910 | -9/14 | 10 g. | St. Louis | American League | St. Louis, MO |
| Simon McDonald | 1910 | 53 g. | Waterbury Finnegans | Connecticut State League | , | ||
| Edgar McDonnell | 1910 | Freeport Pretzels | Northern Association | , | |||
| Ed McDonough | mcdono001edw | 1910 | 94 g. | Scranton Miners | New York State League | , | |
| Ed McDonough | mcdono001edw | 1910 | - 10/11 | 5 g. | Philadelphia | National League | Philadelphia, PA |
| William McDonough | mcdono001wil | 1910 | Fresno Tigers | California State League | , | ||
| William McDonough | mcdono001wil | 1910 | +8/11-9/16+ | Baltimore Orioles | Eastern League | , | |
| Mickey McDowell | 1910 | +6/19+ | Marysville KS | Independent | , | ||
| Pryor McElveen | mcelve001pry | 1910 | 74 g. | Brooklyn | National League | Brooklyn, NY | |
| Herm McFarland | mcfarl001her | 1910 | 104 g. | Portsmouth Truckers/Petersburg Goobers | Virginia League | , | |
| Monte McFarland | mcfarl001mon | 1910 | 12 g. | Clinton Champs | Illinois-Missouri League | , | |
| Roy McFarland | mcfarl001roy | 1910 | OR-Peninsula | Tri-City | , | ||
| John McFarlin | mcfarl001j-- | 1910 | 29 g. | Greenville Spinners | Carolina Association | , | |
| Charles McGeehan | 1910 | Villanova College | College | , | |||
| Charles McGeehan | 1910 | 41 g. | Wilson Tobacconists | Eastern Carolina League | , | ||
| Daniel McGeehan | 1910 | 62 g. | Wilson Tobacconists | Eastern Carolina League | , | ||
| Daniel McGeehan | 1910 | 19 g. | Scranton Miners | New York State League | , | ||
| Jim McGinley | mcginl001jam | 1910 | 41 g. | Toronto Maple Leafs | Eastern League | , | |
| William McGinley | 1910 | 65 g. | Johnstown Johnnies | Tri-State League | , | ||
| William McGinley | 1910 | Lancaster Red Roses | Tri-State League | , | |||
| Art McGovern | mcgove001art | 1910 | 121 g. | Brockton Shoemakers | New England League | , | |
| Frank McGraw | 1910 | 127 g. | Superior Red Sox | Minnesota-Wisconsin League | , | ||
| Eugene McGreevy | mcgree001eug | 1910 | Umpire | Pacific Coast League | , | ||
| Ted McGrew | mcgrew001har | 1910 | Decatur Commodores | Northern Association | , | ||
| Joseph McGuire | 1910 | 132 g. | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| M. R. McGuire | 1910 | 91 g. | Arkansas City Grays | Kansas State League | , | ||
| Jim McHale | mchale001jam | 1910 | San Francisco Seals | Pacific Coast League | , | ||
| Leo McHugh | 1910 | 41 g. | Charlotte Hornets | Carolina Association | , | ||
| Edward McIvor | mcivor001edw | 1910 | 136 g. | San Antonio Bronchos | Texas League | , | |
| Reeve McKay | mckay-001ree | 1910 | 44 g. | Fort Worth Panthers | Texas League | , | |
| Bill McKechnie | mckech001wil | 1910 | 71 g. | Pittsburgh | National League | Pittsburgh, PA | |
| Raymond McKee | 1910 | Indianapolis Indians | American Association | , | |||
| James McKenna | mckenn001jam | 1910 | 124 g. | Hartford Senators | Connecticut State League | , | |
| William McKenzie | 1910 | 12 g. | Greensboro Champs | Carolina Association | , | ||
| Francis McKeon | mckeon001fra | 1910 | Worcester Academy | College | , | ||
| James McKevitt | mckevi001jam | 1910 | 22 g. | Winston-Salem Twins | Carolina Association | , | |
| Marcus McLafferty | 1910 | 138 g. | Kalamazoo Kazoos | Southern Michigan League | , | ||
| Ralph McLaurin | mclaur001ral | 1910 | 141 g. | Chattanooga Lookouts | Southern Association | , | |
| H. McLean | 1910 | 18 g. | Galveston Sand Crabs | Texas League | , | ||
| Pete McLean | 1910 | Jackson Tigers | Cotton States League | , | |||
| Sam McLean | mclean001fra | 1910 | Northampton Meadowlarks | Connecticut State League | , | ||
| Sam McLean | mclean001fra | 1910 | 15 g. | Sioux City Packers | Western League | , | |
| Harry McLear | mclear001har | 1910 | 70 g. | Larned Wheat Kings | Kansas State League | , | |
| Harry McLear | mclear001har | 1910 | 33 g. | St. Joseph Drummers | Western League | , | |
| Edward McLuckie | 1910 | 62 g. | Wellington Dukes | Kansas State League | , | ||
| Doc McMahon | mcmaho001hen | 1910 | Binghamton Bingoes | New York State League | , | ||
| Morrison McMahon | mcmaho001m-- | 1910 | 135 g. | Elmira Colonels | New York State League | , | |
| William McMahon | mcmaho001wil | 1910 | 67 g. | Augusta Tourists | South Atlantic League | , | |
| William McMahon | mcmaho001wil | 1910 | 69 g. | Chattanooga Lookouts | Southern Association | , | |
| Frank McManus | mcmanu001fra | 1910 | Keokuk Indians | Central Association | , | ||
| Frank McManus | mcmanu001fra | 1910 | Burlington Pathfinders | Central Association | , | ||
| Frank McManus | mcmanu001fra | 1910 | 15 g. | Des Moines Boosters | Western League | , | |
| Hugh McMurray | mcmurr002hug | 1910 | 16 g. | Denver Grizzlies | Western League | , | |
| Bernard McNeil | mcneil001ber | 1910 | 15 g. | Rochester Roosters | Minnesota-Wisconsin League | , | |
| Bernard McNeil | mcneil001ber | 1910 | Winona Pirates | Minnesota-Wisconsin League | , | ||
| Clyde McNutt | mcnutt001cly | 1910 | 79 g. | Holland Wooden Shoes | Michigan State League | , | |
| Clyde McNutt | mcnutt001cly | 1910 | Winona Pirates | Minnesota-Wisconsin League | , | ||
| Clyde McNutt | mcnutt001cly | 1910 | Red Wing Manufacturers | Minnesota-Wisconsin League | , | ||
| Frank McPartlin | mcpart002fra | 1910 | 15 g. | Waterbury Finnegans | Connecticut State League | , | |
| Jimmy McQuaid | 1910 | Hamilton MT | Independent | , | |||
| McShane | 1910 | Cincinnati Police | Independent | , | |||
| McShane | 1910 | Eau Claire Commissioners | Minnesota-Wisconsin League | , | |||
| Daniel McSurdy | mcsurd001dan | 1910 | 37 g. | Utica Utes | New York State League | , | |
| Mead | 1910 | 16 g. | New Castle Nocks | Ohio-Pennsylvania League | , | ||
| John Meade | 1910 | 66 g. | Wellington Dukes | Kansas State League | , | ||
| Bill Mecherly | 1910 | Read.-PaRR | Reading City | , | |||
| Bill Mecherly | 1910 | 47 g. | York White Roses | Tri-State League | , | ||
| Bill Mecherly | 1910 | 19 g. | Albany Senators | New York State League | , | ||
| Harry Meek | meek--001her | 1910 | 47 g. | Chattanooga Lookouts | Southern Association | , | |
| Harry Meek | meek--001her | 1910 | 26 g. | Flint Vehicles | Southern Michigan League | , | |
| Meier | 1910 | 37 ab | Junction City Soldiers | Central Kansas League | , | ||
| Meier | 1910 | +8/18+ | Louisville Colonels | American Association | , | ||
| O. W. Meier | 1910 | St. Joseph Drummers | Western League | , | |||
| Frederick Melchior | melchi001fre | 1910 | 134 g. | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Henry Melchoir | melchi001hen | 1910 | 192 g. | San Francisco Seals | Pacific Coast League | , | |
| Paul Meloan | meloan001pau | 1910 | 85 g. | Springfield Senators | Illinois-Indiana-Iowa League | , | |
| Paul Meloan | meloan001pau | 1910 | 8/2- | 65 g. | Chicago | American League | Chicago, IL |
| Samuel Meniece | meniec001sam | 1910 | 88 g. | Grand Rapids Raiders | Central League | , | |
| Samuel Meniece | meniec001sam | 1910 | Zanesville Potters | Central League | , | ||
| Samuel Meniece | meniec001sam | 1910 | Terre Haute Stags | Central League | , | ||
| Jack Mercer | mercer001har | 1910 | Peoria Distillers | Illinois-Indiana-Iowa League | , | ||
| Jack Mercer | mercer001har | 1910 | 8/2 | Pittsburgh | National League | Pittsburgh, PA | |
| Elmer Meredith | meredi001elm | 1910 | 128 g. | Salina Trade Winners | Central Kansas League | , | |
| Merkle | 1910 | 94 g. | Shenandoah Pin Rollers | Missouri-Iowa-Nebraska-Kansas League | , | ||
| Henry Merrill | 1910 | 124 g. | Haverhill Hustlers | New England League | , | ||
| George Merritt | merrit002geo | 1910 | Jersey City Skeeters | Eastern League | , | ||
| George Merritt | merrit002geo | 1910 | Buffalo Bisons | Eastern League | , | ||
| Frederick Mershon | 1910 | +6/1+ | Oakley KS | Independent | , | ||
| Otto Merz | 1910 | Indianapolis Indians | American Association | , | |||
| Otto Merz | 1910 | Springfield Senators | Illinois-Indiana-Iowa League | , | |||
| Otto Merz | 1910 | 12 g. | Newark Newks | Ohio State League | , | ||
| Otto Merz | 1910 | Decatur Commodores | Northern Association | , | |||
| Bobby Messenger | messen001cha | 1910 | 123 g. | Birmingham Barons | Southern Association | , | |
| Bobby Messenger | messen001cha | 1910 | 9 g. | Chicago | American League | Chicago, IL | |
| Tom Messitt | messit001tom | 1910 | 69 g. | Richmond Colts | Virginia League | , | |
| Monte Method | method001bel | 1910 | Aberdeen Black Cats | Washington State League | , | ||
| Monte Method | method001bel | 1910 | 27 g. | Bay City | Southern Michigan League | , | |
| Monte Method | method001bel | 1910 | Decatur Commodores | Northern Association | , | ||
| Benjamin Metz | 1910 | 124 g. | Lynn Shoemakers | New England League | , | ||
| Lee Meyer | meyer-001leo | 1910 | 138 g. | Syracuse Stars | New York State League | , | |
| Harry Meyers | meyers001har | 1910 | 125 g. | Lexington Colts | Blue Grass League | , | |
| Charlie Middleton | middle002cha | 1910 | 115 g. | Houston Buffaloes | Texas League | , | |
| Gus Mier | mier--001gus | 1910 | 68 g. | Flint Vehicles | Southern Michigan League | , | |
| Miller | 1910 | 25 g. | Erie Sailors | Ohio-Pennsylvania League | , | ||
| Miller | 1910 | 74 g. | Newton Railroaders | Kansas State League | , | ||
| Miller | 1910 | 58 g. | Shelbyville/Maysville Rivermen | Blue Grass League | , | ||
| Babe Miller | 1910 | 104 g. | Hutchinson Salt Packers | Kansas State League | , | ||
| Charles Miller | 1910 | Montgomery Climbers | Southern Association | , | |||
| Doc Miller | miller004roy | 1910 | 5/4 | Chicago | National League | Chicago, IL | |
| Doc Miller | miller004roy | 1910 | 130 g. | Boston | National League | Boston, MA | |
| Frank Miller | 1910 | 48 g. | San Francisco Seals | Pacific Coast League | , | ||
| Fred Miller | miller004fre | 1910 | 7/8- | 6 g. | Brooklyn | National League | Brooklyn, NY |
| Hugh Miller | 1910 | Keokuk Indians | Central Association | , | |||
| Joseph Miller | miller008jos | 1910 | 30 g. | Winnipeg Maroons | Western Canada League | , | |
| Joseph Miller | miller008jos | 1910 | Lethbridge Miners | Western Canada League | , | ||
| Kohly Miller | miller001koh | 1910 | Galveston Sand Crabs | Texas League | , | ||
| Kohly Miller | miller001koh | 1910 | Bridgeport Orators | Connecticut State League | , | ||
| Kohly Miller | miller001koh | 1910 | 33 g. | Jacksonville Jays | South Atlantic League | , | |
| Raymond Miller | 1910 | 14 g. | Falls City Colts | Missouri-Iowa-Nebraska-Kansas League | , | ||
| Raymond Miller | 1910 | 129 g. | Akron Champs | Ohio-Pennsylvania League | , | ||
| Theodore Miller | 1910 | 122 g. | Bridgeport Orators | Connecticut State League | , | ||
| Walter Miller | miller005wal | 1910 | 39 g. | Fort Wayne Billikens | Central League | , | |
| Warren Miller | miller006war | 1910 | 122 g. | Scranton Miners | New York State League | , | |
| Pat Millerick | miller002pat | 1910 | Grand Rapids Raiders | Central League | , | ||
| Billy Milligan | millig002wil | 1910 | 11 g. | Jersey City Skeeters | Eastern League | , | |
| David Milligan | millig001dav | 1910 | 94 g. | Indianapolis Indians | American Association | , | |
| Krozer Milliman | 1910 | 82 g. | Reading Pretzels | Tri-State League | , | ||
| Mills | 1910 | 107 g. | Red Cloud Cloud | Nebraska State League | , | ||
| L. I. Mills | 1910 | 66 g. | Wilmington Sailors | Eastern Carolina League | , | ||
| James Minger | 1910 | Lexington Colts | Blue Grass League | , | |||
| James Minger | 1910 | Shelbyville/Maysville Rivermen | Blue Grass League | , | |||
| John Misse | 1910 | Salina Trade Winners | Central Kansas League | , | |||
| Howard Mitinger | 1910 | 45 g. | Scranton Miners | New York State League | , | ||
| Philo Mobley | 1910-13 | Modesto CA Reds | Independent | , | |||
| Homer Mock | mock--001hom | 1910 | 11 g. | Lancaster Lanks | Ohio State League | , | |
| Frank Moffett | moffet001fra | 1910 | Knoxville Appalachians | Southeastern League | , | ||
| Lynn Moffett | 1910 | Lawrenceville | Independent | , | |||
| Elmer Moffitt | moffit001elm | 1910 | South Bend Bronchos | Central League | , | ||
| Elmer Moffitt | moffit001elm | 1910 | 8/21- | Grand Rapids Raiders | Central League | , | |
| Roy Monroe | monroe002r-- | 1910 | 324 ab | Abilene Reds | Central Kansas League | , | |
| Frederick Moore | moore-001fre | 1910 | 95 g. | Fort Worth Panthers | Texas League | , | |
| Wade Moore | moore-001wad | 1910 | Ottawa KS Col | College | , | ||
| William Moore | 1910 | 123 g. | Haverhill Hustlers | New England League | , | ||
| Augie Moran | moran-002aug | 1910 | MLB Umpire | National League | , | ||
| Charlie Moran | moran-002cha | 1910 | 43 g. | Dallas Giants | Texas League | , | |
| Patrick Moran | moran-001pat | 1910 | 12 g. | Seattle Giants | Northwestern League | , | |
| Forrest More | more--001for | 1910 | 47 g. | Chattanooga Lookouts | Southern Association | , | |
| Lew Moren | moren-001lew | 1910 | -9/23 | 34 g. | Philadelphia | National League | Philadelphia, PA |
| Dave Morey | morey-001dav | 1910-13 | Dartmouth College | College | , | ||
| Alexander Morgan | 1910 | Kankakee Kays | Northern Association | , | |||
| Ray Morgan | morgan002ray | 1910 | 40 g. | Goldsboro Giants | Eastern Carolina League | , | |
| Bill Moriarty | moriar002wil | 1910 | 66 g. | Omaha Rourkes | Western League | , | |
| Bill Moriarty | moriar002wil | 1910 | 35 g. | Louisville Colonels | American Association | , | |
| Jim Moroney | morone002jam | 1910 | 11 g. | Baltimore Orioles | Eastern League | , | |
| Jim Moroney | morone002jam | 1910 | 12 g. | Philadelphia | National League | Philadelphia, PA | |
| Morris | morris045--- | 1910 | 132 g. | Keokuk Indians | Central Association | , | |
| George Morris | 1910 | 35 g. | Kewanee Boilermakers | Central Association | , | ||
| Howard Morrow | 1910 | 44 g. | Eau Claire Commissioners | Minnesota-Wisconsin League | , | ||
| William Morrow | 1910 | 23 g. | Brandon Angels | Western Canada League | , | ||
| Morse | 1910 | 15 g. | Lowell Tigers | New England League | , | ||
| Clarence Morse | 1910 | 74 g. | Grand Island Collegians | Nebraska State League | , | ||
| Frank Morse | morse-001fra | 1910 | 126 g. | Macon Peaches | South Atlantic League | , | |
| Hap Morse | morse-001pet | 1910 | 97 g. | Edmonton Eskimos | Western Canada League | , | |
| Ralph Mortenson | 1910 | Harrisburg Miners | Kentucky-Illinois-Tennessee League | , | |||
| Walter Moser | moser-001wal | 1910 | 61 g. | Oakland Oaks | Pacific Coast League | , | |
| Charles Mosley | 1910 | Abilene | West Texas League | , | |||
| Virgil Moss | 1910 | 8 g. | Corpus Christi Pelicans | Southwest Texas League | , | ||
| Anson Mott | mott--002ans | 1910 | 152 g. | Tacoma Tigers | Northwestern League | , | |
| Raymond Mowe | 1910 | 33 g. | Newark Newks | Ohio State League | , | ||
| Raymond Mowe | 1910 | Elgin Kittens | Northern Association | , | |||
| Ed Moyer | moyer-001cha | 1910 | 20 g. | Youngstown Steelmen | Ohio-Pennsylvania League | , | |
| Ed Moyer | moyer-001cha | 1910 | 7/20-10/4 | Washington | American League | Washington, DC | |
| Arthur Mueller | 1910 | 45 g. | Newark Indians | Eastern League | , | ||
| Arthur Mueller | 1910 | Toronto Maple Leafs | Eastern League | , | |||
| Otto Mueller | 1910 | Milwaukee Brewers | American Association | , | |||
| John Mulgrew | 1910 | 108 g. | Louisville Colonels | American Association | , | ||
| Sydney Mulholland | 1910 | no g. | Albany Senators | New York State League | , | ||
| Sydney Mulholland | 1910 | 10 g. | Lexington Colts | Blue Grass League | , | ||
| Cy Mulkey | mulkey001cyr | 1910 | Commerce TX | Independent | , | ||
| Ed Mullaney | mullan001edw | 1910 | 18 g. | Raleigh Red Birds | Eastern Carolina League | , | |
| Howard Mundorff | 1910 | 32 g. | San Francisco Seals | Pacific Coast League | , | ||
| Red Munson | munson001cla | 1910 | 108 g. | Norfolk Tars | Virginia League | , | |
| Red Murch | murch-001rob | 1910 | Savannah Indians | South Atlantic League | , | ||
| Simmy Murch | murch-001sim | 1910 | 143 g. | Indianapolis Indians | American Association | , | |
| Wilbur Murdoch | murdoc001wil | 1910 | 123 g. | Norfolk Tars | Virginia League | , | |
| Frank Murphy | murphy004fra | 1910 | 190 g. | Los Angeles Angels | Pacific Coast League | , | |
| Alexander Murray | murray001ale | 1910 | 137 g. | Terre Haute Stags | Central League | , | |
| H. H. Murray | 1910 | 34 g. | Grand Island Collegians | Nebraska State League | , | ||
| Paul Musser | musser001pau | 1910 | Williamsport Millionaires | Tri-State League | , | ||
| Bade Myers | myers-002wil | 1910 | Quincy Vets | Central Association | , | ||
| John Myers | meyers004joh | 1910 | 29 g. | South Bend Bronchos | Central League | , | |
| Joseph Myers | myers-002jos | 1910 | 47 g. | Harrisburg Senators | Tri-State League | , | |
| Ralph Myers | 1910 | 54 g. | Louisville Colonels | American Association | , | ||
| Tommy Mylett | mylett002tho | 1910 | Cleveland | Independent | , | ||
| Phil Nadeau | nadeau001phi | 1910 | 39 g. | Joliet Jolly-ites/Sterling Infants | Northern Association | , | |
| Phil Nadeau | nadeau001phi | 1910 | Davenport Prodigals | Illinois-Indiana-Iowa League | , | ||
| Nagle | 1910 | +8/28+ | Elmira Colonels | New York State League | , | ||
| Alex Nagle | 1910 | 137 g. | Oklahoma City Indians | Texas League | , | ||
| James Nagle | 1910 | 28 g. | Elmira Colonels | New York State League | , | ||
| Richard Nallin | nallin001ric | 1910 | +7/4+ | Bridgeport Orators | Connecticut State League | , | |
| John Nally | 1910 | 32 g. | Dayton Veterans | Central League | , | ||
| John Nally | 1910 | 11 g. | Mansfield Reformers | Ohio-Pennsylvania League | , | ||
| John Nally | 1910 | 81 g. | Newark Newks | Ohio State League | , | ||
| Billy Nattress | nattre001wil | 1910 | 149 g. | Montreal Royals | Eastern League | , | |
| William Neal | neal--002wil | 1910 | 48 g. | Augusta Tourists | South Atlantic League | , | |
| Richard Nebinger | 1910 | Columbia PA | Independent | , | |||
| John Nee | 1910 | 129 g. | Dayton Veterans | Central League | , | ||
| George Needham | needha001geo | 1910 | New Britain Perfectos | Connecticut State League | , | ||
| George Needham | needha001geo | 1910 | Waterbury Finnegans | Connecticut State League | , | ||
| Lloyd Nefeau | nefeau001llo | 1910 | , | ||||
| Fred Nehring | nehrin001fre | 1910 | 21 g. | Chehalis Gophers | Washington State League | , | |
| Cecil Neighbors | neighb001fle | 1910 | 166 g. | Sioux City Packers | Western League | , | |
| Clarence Nelson | nelson001cla | 1910 | 48 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | |
| Harry Nelson | 1910 | 43 g. | Oakland Oaks | Pacific Coast League | , | ||
| Red Nelson | nelson002alb | 1910 | 15 g. | Columbus Senators | American Association | , | |
| Red Nelson | nelson002alb | 1910 | 9/9- | 7 g. | St. Louis | American League | St. Louis, MO |
| Saul Neptune | 1910 | no g. | Haverhill Hustlers | New England League | , | ||
| Milo Netzel | netzel001mil | 1910 | 33 g. | Portland Beavers | Pacific Coast League | , | |
| Milo Netzel | netzel001mil | 1910 | 128 g. | Spokane Indians | Northwestern League | , | |
| Archibald Neuschafer | 1910 | 30 g. | Dayton Veterans | Central League | , | ||
| Nestor Nevenpara | 1910 | 33 g. | Mansfield Reformers | Ohio-Pennsylvania League | , | ||
| Frank Newhouse | 1910 | Umpire | Central League | , | |||
| Otto Newlin | newlin001ott | 1910 | 34 g. | Albany Senators | New York State League | , | |
| Pat Newnam | newnam001pat | 1910 | 38 g. | Houston Buffaloes | Texas League | , | |
| Pat Newnam | newnam001pat | 1910 | 5/29- | 103 g. | St. Louis | American League | St. Louis, MO |
| Al Newnham | newnha001alf | 1910 | 117 g. | Lima Cigarmakers | Ohio State League | , | |
| Newton | 1910 | 14 g. | Tacoma Cubs | Washington State League | , | ||
| Albert Newton | newton001alb | 1910 | 90 g. | Northampton Meadowlarks | Connecticut State League | , | |
| Albert Newton | newton001alb | 1910 | 30 g. | Birmingham Barons | Southern Association | , | |
| Doc Newton | newton001eus | 1910 | 37 g. | Toronto Maple Leafs | Eastern League | , | |
| Eugene Newton | 1910 | 120 g. | Roanoke Tigers | Virginia League | , | ||
| Art Nichols | nichol001art | 1910 | 54 g. | Waterbury Finnegans | Connecticut State League | , | |
| J. Nichols | 1910 | Fall River Indians | New England League | , | |||
| James Nichols | 1910 | 62 g. | Willimantic Colts | Connecticut Association | , | ||
| Al Nickell | nickel001al- | 1910 | Galesburg Pavers | Central Association | , | ||
| Jess Nickoll | 1910 | Rockford Reds | Wisconsin-Illinois League | , | |||
| Elbert Nicks | 1910 | 12 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Bert Niehoff | 1910 | 166 g. | Des Moines Boosters | Western League | , | ||
| Harry Niles | niles-001her | 1910 | 18 g. | Boston | American League | Boston, MA | |
| Harry Niles | niles-001her | 1910 | - 9/28 | 70 g. | Cleveland | American League | Cleveland, OH |
| Bert Noblett | noblet001j-- | 1910 | 109 g. | Haverhill Hustlers | New England League | , | |
| Bert Noblett | noblet001j-- | 1910 | Worcester Busters | New England League | , | ||
| George Noblit | noblit001geo | 1910 | 107 g. | Reading Pretzels | Tri-State League | , | |
| Fred Noe | 1910 | 35 g. | Kewanee Boilermakers | Central Association | , | ||
| Rufus Nolley | nolley001ruf | 1910 | 31 g. | Savannah Indians | South Atlantic League | , | |
| Alex Norcabbage | norcab001ale | 1910 | 26 g. | Battle Creek Crickets | Southern Michigan League | , | |
| Walter Norton | 1910 | Worcester Busters | New England League | , | |||
| Walter Norton | 1910 | Lawrence Colts | New England League | , | |||
| Jim Novacek | novace001jam | 1910 | 37 g. | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | |
| Jim Novacek | novace001jam | 1910 | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| Jim Novacek | novace001jam | 1910 | 72 g. | Lincoln Abes | Illinois-Missouri League | , | |
| Edwin Noyes | noyes-001edw | 1910 | 98 g. | Oklahoma City Indians | Texas League | , | |
| Nugent | 1910 | Clinton Teddies | Northern Association | , | |||
| Nye | 1910 | 19 g. | East Liverpool Potters | Ohio-Pennsylvania League | , | ||
| Martin Nye | nye---001mar | 1910 | 60 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | |
| Martin Nye | nye---001mar | 1910 | 31 g. | Wheeling Stogies | Central League | , | |
| Tony Nysteum | 1910 | Aberdeen SD | Independent | , | |||
| Charles O'Berta | 1910 | Macomb Potters | Illinois-Missouri League | , | |||
| Charles O'Berta | 1910 | Lincoln Abes | Illinois-Missouri League | , | |||
| Buck O'Brien | obrien005tho | 1910 | 38 g. | Hartford Senators | Connecticut State League | , | |
| John O'Brien | 1910 | 36 g. | Trenton Tigers | Tri-State League | , | ||
| John O'Brien | 1910 | Reading Pretzels | Tri-State League | , | |||
| Thomas O'Brien | obrien002t-- | 1910 | 122 g. | Duluth White Sox | Minnesota-Wisconsin League | , | |
| Tim O'Brien | obrien004tim | 1910 | 31 g. | Dayton Veterans | Central League | , | |
| Andy O'Connor | oconno002and | 1910 | 7/29-8/15 | Lynn Shoemakers | New England League | , | |
| O'Day | 1910 | 4/29-4/30 | Worcester Busters | New England League | , | ||
| Charles O'Day | oday--001cha | 1910 | 54 g. | Newark Newks | Ohio State League | , | |
| Charles O'Day | oday--001cha | 1910 | Decatur Commodores | Northern Association | , | ||
| Frank O'Day | 1910 | 106 g. | Portsmouth Cobblers | Ohio State League | , | ||
| Frank O'Day | 1910 | 41 g. | Indianapolis Indians | American Association | , | ||
| Artie O'Dea | odea--001art | 1910 | 15 g. | Superior Red Sox | Minnesota-Wisconsin League | , | |
| Louis O'Halloran | 1910 | 74 g. | Fayetteville Highlanders | Eastern Carolina League | , | ||
| Bill O'Hara | ohara-002wil | 1910 | -5/8 | 9 g. | St. Louis | National League | St. Louis, MO |
| John O'Hara | 1910 | 10 g. | Jersey City Skeeters | Eastern League | , | ||
| Thomas O'Hare | ohare-001tho | 1910 | 100 g. | Fond du Lac Giants | Wisconsin-Illinois League | , | |
| Harold O'Hayer | 1910 | 97 g. | Lethbridge Miners | Western Canada League | , | ||
| Albert O'Hearn | 1910 | 110 g. | Pekin Celestials | Illinois-Missouri League | , | ||
| Robert O'Hearn | 1910 | Jacksonville Jacks | Northern Association | , | |||
| Daniel O'Leary | oleary001dan | 1910 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Frank O'Leary | oleary001fra | 1910 | 107 g. | Rochester Roosters | Minnesota-Wisconsin League | , | |
| George O'Leary | oleary001geo | 1910 | 114 g. | Oshkosh Indians | Wisconsin-Illinois League | , | |
| Michael O'Malley | omalle001mic | 1910 | 116 g. | Bay City | Southern Michigan League | , | |
| Dan O'Neil | oneill003dan | 1910 | New Britain Perfectos | Connecticut State League | , | ||
| John O'Neill | oneill004wil | 1910 | Minneapolis Millers | American Association | , | ||
| John O'Neill | oneill004wil | 1910 | Louisville Colonels | American Association | , | ||
| Marty O'Toole | otoole001mar | 1910 | 32 g. | Sioux City Packers | Western League | , | |
| Michael O'Toole | otoole001mic | 1910 | 37 g. | Haverhill Hustlers | New England League | , | |
| Rebel Oakes | oakes-001enn | 1910 | 131 g. | St. Louis | National League | St. Louis, MO | |
| Charles Ochs | 1910 | Greenville Spinners | Carolina Association | , | |||
| Fred Odwell | odwell001fre | 1910 | 162 g. | Columbus Senators | American Association | , | |
| Hatton Ogle | 1910 | 40 g. | Waco Navigators | Texas League | , | ||
| Harry Ohland | 1910 | 142 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | ||
| Cornelius Ollre | 1910s | Hous.-Firemen | Independent | , | |||
| Fred Olmstead | olmste001fre | 1910 | 32 g. | Chicago | American League | Chicago, IL | |
| Hank Olmsted | olmste001hen | 1910 | 48 g. | Denver Grizzlies | Western League | , | |
| Emery Olson | 1910 | no g. | St. Louis | American League | St. Louis, MO | ||
| Ivan Olson | 1910 | 210 g. | Portland Beavers | Pacific Coast League | , | ||
| Sylvester Olson | olson-001syl | 1910 | Louisville Colonels | American Association | , | ||
| Sylvester Olson | olson-001syl | 1910 | Richmond Pioneers | Blue Grass League | , | ||
| William Oriet | oriet-001wil | 1910 | 33 g. | Lethbridge Miners | Western Canada League | , | |
| Jess Orndorff | orndor001jes | 1910 | 95 g. | Los Angeles Angels | Pacific Coast League | , | |
| George Ort | ort---001geo | 1910 | 151 g. | Portland Beavers | Pacific Coast League | , | |
| Arch Osborne | osborn001arc | 1910 | +5/14+ | Columbus Senators | American Association | , | |
| Mack Osborne | 1910 | 39 g. | McPherson Merry Macks | Kansas State League | , | ||
| Owen Osborne | 1910 | Chehalis Gophers | Washington State League | , | |||
| Harry Ostdiek | ostdie001hen | 1910 | 58 g. | Spokane Indians | Northwestern League | , | |
| Bill Otey | otey--001wil | 1910 | 14 g. | Norfolk Tars | Virginia League | , | |
| Bill Otey | otey--001wil | 1910 | 9 g. | Washington | American League | Washington, DC | |
| Frank Ott | ott---002fra | 1910 | 56 g. | Jackson Tigers | Cotton States League | , | |
| Orval Overall | overal001orv | 1910 | 25 g. | Chicago | National League | Chicago, IL | |
| Ernie Ovitz | ovitz-001ern | 1910 | 31 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Andrew Owens | 1910 | 43 g. | Des Moines Boosters | Western League | , | ||
| Arthur Owens | owens-001art | 1910 | Aurora Islanders | Wisconsin-Illinois League | , | ||
| Arthur Owens | owens-001art | 1910 | Joliet Jolly-ites/Sterling Infants | Northern Association | , | ||
| Red Owens | owens-003tho | 1910 | 139 g. | Quincy Vets | Central Association | , | |
| William Oyler | oyler-001wil | 1910 | Lexington Colts | Blue Grass League | , | ||
| William Oyler | oyler-001wil | 1910 | Shelbyville/Maysville Rivermen | Blue Grass League | , | ||
| Lon Ozee | 1910 | Sioux City Packers | Western League | , | |||
| Lon Ozee | 1910 | 70 g. | Vicksburg Hill Billies | Cotton States League | , | ||
| Lon Ozee | 1910 | 37 g. | Monmouth Browns | Central Association | , | ||
| Delmer Paddock | 1910 | 88 g. | Calgary Bronchos | Western Canada League | , | ||
| George Page | page--003geo | 1910 | 66 g. | Corpus Christi Pelicans | Southwest Texas League | , | |
| Edward Painter | painte001edw | 1910 | 107 g. | Winston-Salem Twins | Carolina Association | , | |
| Hauley Pankey | 1910 | Bay City Rice Eaters | Southwest Texas League | , | |||
| John Pappalau | pappal001joh | 1910 | 31 g. | Binghamton Bingoes | New York State League | , | |
| Harry Parent | parent001har | 1910 | 95 g. | Muskegon Speed Boys | Michigan State League | , | |
| Robert Parker | 1910 | 133 g. | Jackson Convicts | Southern Michigan League | , | ||
| Walter Parker | 1910 | 14 g. | Rochester Roosters | Minnesota-Wisconsin League | , | ||
| Walter Parker | 1910 | Winona Pirates | Minnesota-Wisconsin League | , | |||
| Roy Parkin | parkin001r-- | 1910 | +5/22+ | 31 g. | Newark Indians | Eastern League | , |
| Charles Parkins | parkin003cha | 1910 | 4/29-6/3 | 6 g. | Brockton Shoemakers | New England League | , |
| Charles Parkins | parkin003cha | 1910 | 23 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | |
| Ralph Parrott | 1910 | 82 g. | Lawrence Colts | New England League | , | ||
| Ralph Parrott | 1910 | Fall River Indians | New England League | , | |||
| Dode Paskert | pasker001geo | 1910 | 144 g. | Cincinnati | National League | Cincinnati, OH | |
| Patterson | 1910 | Joliet Jolly-ites/Sterling Infants | Northern Association | , | |||
| Patterson | 1910 | Kankakee Kays | Northern Association | , | |||
| Patterson | 1910 | 51 g. | Jackson Convicts | Southern Michigan League | , | ||
| Clare Patterson | patter001lor | 1910 | 56 g. | Fort Wayne Billikens | Central League | , | |
| Clare Patterson | patter001lor | 1910 | 29 g. | Quincy Vets | Central Association | , | |
| Ham Patterson | patter001ham | 1910 | Chattanooga Lookouts | Southern Association | , | ||
| Ham Patterson | patter001ham | 1910 | Nashville Volunteers | Southern Association | , | ||
| Sidney Patterson | 1910 | 56 ab | Manhattan Maroons | Central Kansas League | , | ||
| Van Patterson | patter001van | 1910 | Canton Deubers | Ohio-Pennsylvania League | , | ||
| Harry Patton | patton001har | 1910 | 30 g. | Waterloo Boosters | Illinois-Indiana-Iowa League | , | |
| Harry Patton | patton001har | 1910 | 8/22 | St. Louis | National League | St. Louis, MO | |
| Andrew Payne | 1910 | Chicago | Cuban-Amer | , | |||
| Dudley Payne | payne-001dud | 1910 | Umpire | Texas League | , | ||
| Harry Payne | 1910 | 73 g. | Victoria Rosebuds | Southwest Texas League | , | ||
| Harry Payne | 1910 | Bay City Rice Eaters | Southwest Texas League | , | |||
| Harry Payne | 1910 | Brownsville Brownies | Southwest Texas League | , | |||
| Wood Payne | payne-008--- | 1910 | 106 g. | Paducah Indians | Kentucky-Illinois-Tennessee League | , | |
| Bunny Pearce | pearce001wil | 1910 | 36 g. | Oakland Oaks | Pacific Coast League | , | |
| Ed Pearsons | 1910 | 16 g. | Omaha Rourkes | Western League | , | ||
| Joseph Peartree | peartr001j-- | 1910 | 52 g. | Columbia Gamecocks | South Atlantic League | , | |
| Joseph Peartree | peartr001j-- | 1910 | 19 g. | Rocky Mount Railroaders | Eastern Carolina League | , | |
| Marv Peasley | peasle001mar | 1910 | 9/27-10/6 | Detroit | American League | Detroit, MI | |
| Harris Peaster | 1910 | 10 g. | Jackson Tigers | Cotton States League | , | ||
| Samuel Peaster | 1910 | Haverhill Hustlers | New England League | , | |||
| Aldridge Peebles | 1910 | Beeville Orange Growers | Southwest Texas League | , | |||
| Aldridge Peebles | 1910 | Brownsville Brownies | Southwest Texas League | , | |||
| John Peebles | 1910 | Laredo Bermudas | Southwest Texas League | , | |||
| John Peebles | 1910 | Beeville Orange Growers | Southwest Texas League | , | |||
| Samuel Peer | peer--001sam | 1910 | Youngstown Steelmen | Ohio-Pennsylvania League | , | ||
| Heinie Peitz | peitz-001hen | 1910 | 23 g. | Louisville Colonels | American Association | , | |
| Heinie Peitz | peitz-001hen | 1910 | 60 g. | Lancaster Lanks | Ohio State League | , | |
| Louis Pelkey | 1910 | 118 g. | Savannah Indians | South Atlantic League | , | ||
| A. T. Pelletier | 1910 | 38 g. | Aurora Islanders | Wisconsin-Illinois League | , | ||
| John Pendry | pendry001joh | 1910 | 17 g. | Dayton Veterans | Central League | , | |
| George Pennington | pennin002geo | 1910 | 78 g. | Seattle Giants | Northwestern League | , | |
| George Pennington | pennin002geo | 1910 | 18 g. | Keokuk Indians | Central Association | , | |
| Ross Pennybaker | 1910 | 27 g. | Lima Cigarmakers | Ohio State League | , | ||
| Joseph Pepe | 1910 | 103 g. | Montgomery Climbers | Southern Association | , | ||
| Herbert Perdue | perdue001her | 1910 | 29 g. | Nashville Volunteers | Southern Association | , | |
| Everett Perkins | 1910 | 66 g. | Fall River Indians | New England League | , | ||
| George Perring | perrin001geo | 1910 | 74 g. | Columbus Senators | American Association | , | |
| George Perring | perrin001geo | 1910 | 39 g. | Cleveland | American League | Cleveland, OH | |
| Clay Perry | perry-001cla | 1910 | 138 g. | Chattanooga Lookouts | Southern Association | , | |
| William Perry | perry-003wil | 1910 | 190 g. | Sacramento Sacts | Pacific Coast League | , | |
| Dutch Persch | persch001abn | 1910 | 30 g. | Topeka Jayhawks | Western League | , | |
| Dutch Persch | persch001abn | 1910 | 109 g. | Racine Belles | Wisconsin-Illinois League | , | |
| Archie Persons | person001arc | 1910 | 36 g. | Sacramento Sacts | Pacific Coast League | , | |
| Peterson | 1910 | 23 g. | Cadillac Chiefs | Michigan State League | , | ||
| Peterson | 1910 | Cadillac Chiefs | Michigan State League | , | |||
| Pettijohn | 1910 | Duluth White Sox | Minnesota-Wisconsin League | , | |||
| Andrew Pettit | petit-001and | 1910 | 61 g. | Savannah Indians | South Atlantic League | , | |
| Monty Pfyl | pfyl--001mei | 1910 | 53 g. | Oakland Oaks | Pacific Coast League | , | |
| John Phelan | phelan001joh | 1910 | 101 g. | Providence Grays | Eastern League | , | |
| Martin Phelan | phelan001mar | 1910 | 73 g. | Rocky Mount Railroaders | Eastern Carolina League | , | |
| Martin Phelan | phelan001mar | 1910 | Wilson Tobacconists | Eastern Carolina League | , | ||
| Phillips | 1910 | 26 g. | New London Whalers | Connecticut Association | , | ||
| Phillips | 1910 | 16 g. | Clarksville Volunteers | Kentucky-Illinois-Tennessee League | , | ||
| Joseph Phillips | 1910 | 43 g. | Columbus Foxes | South Atlantic League | , | ||
| Joseph Phillips | 1910 | 84 g. | Montgomery Climbers | Southern Association | , | ||
| William Phoenix | 1910 | Providence Grays | Eastern League | , | |||
| Aubrey Pickens | picken001aub | 1910 | Ellsworth Blues | Central Kansas League | , | ||
| Charlie Pickett | picket001cha | 1910 | 12 g. | Terre Haute Stags | Central League | , | |
| Charlie Pickett | picket001cha | 1910 | 6/21-6/24 | St. Louis | National League | St. Louis, MO | |
| Charles Piepho | piepho001c-- | 1910 | +8/5+ | Umpire | Kentucky-Illinois-Tennessee League | , | |
| Elmer Pierce | pierce001elm | 1910 | St. Paul Saints | American Association | , | ||
| George Pierce | 1910 | 46 g. | Augusta Tourists | South Atlantic League | , | ||
| Charles Piez | 1910-13 | Bucknell Univ. | College | , | |||
| Charles Piez | 1910 | 33 g. | Williamsport Millionaires | Tri-State League | , | ||
| Ethen Pinkerton | pinker001e-- | 1910 | 61 g. | Wellington Dukes | Kansas State League | , | |
| Ethen Pinkerton | pinker001e-- | 1910 | Larned Wheat Kings | Kansas State League | , | ||
| Ed Pinnance | pinnan001edw | 1910 | 20 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | |
| William Piper | piper-001lar | 1910 | 73 g. | Winnipeg Maroons | Western Canada League | , | |
| Forrest Plass | plass-001for | 1910 | +7/15+ | Wheeling Stogies | Central League | , | |
| Forrest Plass | plass-001for | 1910 | 33 g. | Winnipeg Maroons | Western Canada League | , | |
| Forrest Plass | plass-001for | 1910 | Freeport Pretzels | Northern Association | , | ||
| Eddie Pleiss | pleiss001edw | 1910 | 32 g. | Harrisburg Senators | Tri-State League | , | |
| Eddie Pleiss | pleiss001edw | 1910 | 10 g. | New Haven Prairie Hens | Connecticut State League | , | |
| Thomas Plummer | plumme001tho | 1910 | 57 g. | New Britain Perfectos | Connecticut State League | , | |
| Leroy Plympton | 1910 | 57 g. | Burlington Pathfinders | Central Association | , | ||
| Dee Poindexter | poinde001dee | 1910 | Ellsworth Blues | Central Kansas League | , | ||
| Milton Pokorney | 1910 | 117 g. | Guthrie Senators | Western Association | , | ||
| Lou Polchow | polcho001lou | 1910 | 26 g. | Elmira Colonels | New York State League | , | |
| Walter Pollard | 1910 | El Reno Packers | Western Association | , | |||
| Jack Pollock | polloc001joh | 1910 | DesM-Old Taverns | Independent | , | ||
| Jack Pollock | polloc001joh | 1910 | +7/6+ | 46 g. | Maryville Comets | Missouri-Iowa-Nebraska-Kansas League | , |
| Jack Pollock | polloc001joh | 1910 | Umpire | Wisconsin-Illinois League | , | ||
| Jack Pollock | polloc001joh | 1910 | MLB Umpire | American League | , | ||
| Ralph Pond | pond--001ral | 1910 | 72 g. | Brockton Shoemakers | New England League | , | |
| Ralph Pond | pond--001ral | 1910 | 6/8 | Boston | American League | Boston, MA | |
| James Poole | 1910 | 22 g. | Paris Bourbonites | Blue Grass League | , | ||
| William Poole | poole-002wil | 1910 | 32 g. | Lancaster Red Roses | Tri-State League | , | |
| Ashley Pope | 1910 | 49 g. | Jacksonville Jays | South Atlantic League | , | ||
| Lewis Popham | 1910 | Shreveport Pirates | Texas League | , | |||
| Lewis Popham | 1910 | Muskegon Speed Boys | Michigan State League | , | |||
| Lewis Popham | 1910 | Jonesboro Zebras | Northeast Arkansas League | , | |||
| J. E. Porte | 1910 | 51 g. | Albany Senators | New York State League | , | ||
| Carl Porter | porter003car | 1910 | 115 g. | New Castle Nocks | Ohio-Pennsylvania League | , | |
| Dale Porter | 1910 | 103 g. | Great Bend Millers | Kansas State League | , | ||
| Dale Porter | 1910 | Arkansas City Grays | Kansas State League | , | |||
| Dale Porter | 1910 | Newton Railroaders | Kansas State League | , | |||
| Bill Pounds | pounds001jea | 1910 | 21 g. | Elmira Colonels | New York State League | , | |
| Bill Powell | powell003wil | 1910 | 22 g. | Kansas City Blues | American Association | , | |
| Bill Powell | powell003wil | 1910 | 12 g. | Pittsburgh | National League | Pittsburgh, PA | |
| William Powell | powell005wil | 1910 | 86 g. | Columbia Gamecocks | South Atlantic League | , | |
| William Powell | powell005wil | 1910 | 15 g. | Fort Worth Panthers | Texas League | , | |
| August Powers | 1910 | Hutchinson Salt Packers | Kansas State League | , | |||
| J. Whitney Powers | 1910 | Joliet Jolly-ites/Sterling Infants | Northern Association | , | |||
| J. Whitney Powers | 1910 | Clinton Teddies | Northern Association | , | |||
| J. Whitney Powers | 1910 | 13 g. | Galveston Sand Crabs | Texas League | , | ||
| Omer Prater | 1910 | Winona Pirates | Minnesota-Wisconsin League | , | |||
| Omer Prater | 1910 | La Crosse Outcasts | Minnesota-Wisconsin League | , | |||
| Omer Prater | 1910 | +7/21+ | Greenwood Chauffeurs | Cotton States League | , | ||
| Larry Pratt | pratt-001les | 1910 | 77 g. | New Bedford Whalers | New England League | , | |
| William Pressly | 1910 | 114 g. | Roanoke Tigers | Virginia League | , | ||
| William Pressy | 1910 | 43 g. | Kewanee Boilermakers | Central Association | , | ||
| Edward Preston | 1910 | 130 g. | Bay City | Southern Michigan League | , | ||
| Price | 1910 | 32 g. | Greensboro Champs | Carolina Association | , | ||
| Gilbert Price | 1910 | 9 g. | Flint Vehicles | Southern Michigan League | , | ||
| Howard Price | price-001how | 1910 | 76 g. | Guthrie Senators | Western Association | , | |
| Norman Price | price-001how | 1910 | 84 g. | Guthrie Senators | Western Association | , | |
| Sunny Price | 1910 | 108 g. | Brownsville Brownies | Southwest Texas League | , | ||
| Ted Price | price-001e-- | 1910 | Kewanee Boilermakers | Central Association | , | ||
| Ted Price | price-001e-- | 1910 | Enid Railroaders | Western Association | , | ||
| Johnny Priest | priest002joh | 1910 | 87 g. | Danville Red Sox | Virginia League | , | |
| Grover Prough | 1910 | 96 g. | Jackson Convicts | Southern Michigan League | , | ||
| Herschel Prough | 1910 | 30 g. | Keokuk Indians | Central Association | , | ||
| Billy Prout | prout-002wil | 1910 | 26 g. | Hannibal Cannibals | Central Association | , | |
| Tex Pruiett | pruiet001cha | 1910 | 41 g. | New Bedford Whalers | New England League | , | |
| Joseph Pulliam | 1910 | 331 ab | Salina Trade Winners | Central Kansas League | , | ||
| Frederick Purcell | purcel001the | 1910 | +5/10+ | Lancaster Lanks | Ohio State League | , | |
| Billy Purtell | purtel002wil | 1910 | 102 g. | Chicago | American League | Chicago, IL | |
| Billy Purtell | purtel002wil | 1910 | 49 g. | Boston | American League | Boston, MA | |
| J. F. Putnam | 1910 | Ottumwa Packers | Central Association | , | |||
| J. F. Putnam | 1910 | Kewanee Boilermakers | Central Association | , | |||
| J. F. Putnam | 1910 | Monmouth Browns | Central Association | , | |||
| Ambrose Puttmann | puttma001amb | 1910 | 53 g. | Portsmouth Truckers/Petersburg Goobers | Virginia League | , | |
| Walter Queisser | queiss001wal | 1910 | 36 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Arthur Quiesser | 1910 | 38 g. | Fort Wayne Billikens | Central League | , | ||
| Ernest Quigley | quigle001ern | 1910 | 62 ab | Junction City Soldiers | Central Kansas League | , | |
| Frank Quigley | quigle001fra | 1910 | 81 g. | Red Cloud Cloud | Nebraska State League | , | |
| Frank Quigley | quigle001fra | 1910 | 22 g. | Kearney Kapitalists | Nebraska State League | , | |
| William Quigley | 1910 | Edmonton Eskimos | Western Canada League | , | |||
| William Quigley | 1910 | Brandon Angels | Western Canada League | , | |||
| Larry Quinlan | quinla001law | 1910 | 26 g. | Wilkes-Barre Barons | New York State League | , | |
| Thomas Quinlan | 1910 | +10/9+ | Scra.-Jermyn | Independent | , | ||
| Jack Quinn | quinn-007joh | 1910 | 35 g. | New York | American League | New York, NY | |
| J. E. Radis | radis-000je- | 1910 | +7/28+ | Butte- A.C.M. | Independent | , | |
| William Raftis | 1910 | 107 g. | Binghamton Bingoes | New York State League | , | ||
| William Raftis | 1910 | 32 g. | Des Moines Boosters | Western League | , | ||
| Pat Ragan | ragan-001don | 1910 | 35 g. | Rochester Bronchos | Eastern League | , | |
| Steven Ragan | ragan-001ste | 1910 | 108 g. | Dayton Veterans | Central League | , | |
| William Ragan | 1910 | 111 g. | Hannibal Cannibals | Central Association | , | ||
| Joe Raidy | raidy-001jos | 1910 | 138 g. | Grand Rapids Raiders | Central League | , | |
| Thomas Railing | railin001tho | 1910 | 52 g. | Battle Creek Crickets | Southern Michigan League | , | |
| Daniel Raley | 1910 | 12 g. | East Liverpool Potters | Ohio-Pennsylvania League | , | ||
| John Raley | 1910 | 116 g. | East Liverpool Potters | Ohio-Pennsylvania League | , | ||
| Doc Ralston | ralsto001sam | 1910 | 131 g. | Akron Champs | Ohio-Pennsylvania League | , | |
| Doc Ralston | ralsto001sam | 1910 | 9/8-10/6 | Washington | American League | Washington, DC | |
| Everett Ramsey | 1910 | 240 ab | Concordia Travelers | Central Kansas League | , | ||
| Everett Ramsey | 1910 | Cherokee Indians | Independent | , | |||
| George Ramsey | ramsey002geo | 1910 | Reading Pretzels | Tri-State League | , | ||
| Hank Ramsey | ramsey001hen | 1910 | 5/4-9/7 | Altoona Rams | Tri-State League | , | |
| Wayne Ramsey | 1910 | Harvard Univ. | College | , | |||
| Wayne Ramsey | 1910 | Pitt.-Collegians | Independent | , | |||
| Harry Randall | 1910 | Beardstown/Jacksonville Jacks | Illinois-Missouri League | , | |||
| Harry Randall | 1910 | Clinton Champs | Illinois-Missouri League | , | |||
| Newt Randall | randal001new | 1910 | 146 g. | Milwaukee Brewers | American Association | , | |
| Clifford Randolph | 1910 | 24 g. | Binghamton Bingoes | New York State League | , | ||
| Clifford Randolph | 1910 | Troy Trojans | New York State League | , | |||
| Edward Rankin | 1910 | 93 g. | Hutchinson Salt Packers | Kansas State League | , | ||
| Ransome | 1910 | 20 g. | Falls City Colts | Missouri-Iowa-Nebraska-Kansas League | , | ||
| William Rapp | 1910 | 48 g. | East Liverpool Potters | Ohio-Pennsylvania League | , | ||
| William Rapps | rapps-001wil | 1910 | 207 g. | Portland Beavers | Pacific Coast League | , | |
| Bill Rariden | raride001wil | 1910 | 49 g. | Boston | National League | Boston, MA | |
| Tommy Raub | raub--001tho | 1910 | 50 g. | Wilkes-Barre Barons | New York State League | , | |
| Frank Ray | 1910 | 31 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| Fred Raymer | raymer001fre | 1910 | 78 g. | Sacramento Sacts | Pacific Coast League | , | |
| Montie Rea | rea---000mon | 1910 | +8/16+ | Charlotte.-YMCA | Independent | , | |
| Steve Reagan | reagan001ste | 1910 | 41 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | |
| Steve Reagan | reagan001ste | 1910 | 26 g. | Topeka Jayhawks | Western League | , | |
| John Reardon | 1910 | 41 g. | Utica Utes | New York State League | , | ||
| Wallace Reddick | reddic001wal | 1910 | 83 g. | Cadillac Chiefs | Michigan State League | , | |
| James Redfearn | 1910 | 35 g. | Greenville Spinners | Carolina Association | , | ||
| Harry Redman | redman001har | 1910 | 124 g. | Mansfield Reformers | Ohio-Pennsylvania League | , | |
| Reed | 1910 | 10 g. | Waco Navigators | Texas League | , | ||
| George Reed | reed--003geo | 1910 | Mobile Sea Gulls | Southern Association | , | ||
| Levi Reed | 1910 | 118 g. | Winchester Hustlers | Blue Grass League | , | ||
| William Reed | 1910 | 84 g. | Ellsworth Blues | Central Kansas League | , | ||
| William Reed | 1910 | Sapulpa Oilers | Western Association | , | |||
| Grover Reeder | reeder002gro | 1910 | Lancaster Red Roses | Tri-State League | , | ||
| Charles Reese | reese-001cha | 1910 | 59 g. | Adrian Yeggs | Southern Michigan League | , | |
| Ralph Reeve | 1910 | Dover NH | Independent | , | |||
| Joseph Reggy | 1910 | 115 g. | Norfolk Tars | Virginia League | , | ||
| Edward Reichle | 1910 | 132 g. | Keokuk Indians | Central Association | , | ||
| C. Y. Reidy | 1910 | 7/- | 39 g. | Rockford Reds | Wisconsin-Illinois League | , | |
| Jack Reidy | 1910 | 135 g. | Waterloo Boosters | Illinois-Indiana-Iowa League | , | ||
| Phil Reisinger | reisin001phi | 1910 | 43 g. | Rockford Reds | Wisconsin-Illinois League | , | |
| Emil Reitz | 1910 | York White Roses | Tri-State League | , | |||
| George Reitz | reitz-001geo | 1910 | New Haven Prairie Hens | Connecticut State League | , | ||
| Clarence Relf | reid--001r-- | 1910 | Vicksburg Hill Billies | Cotton States League | , | ||
| Clarence Relf | reid--001r-- | 1910 | Wellington Dukes | Kansas State League | , | ||
| Robert Revelle | 1910 | 37 g. | Richmond Colts | Virginia League | , | ||
| Jesse Reynolds | reynol001jes | 1910 | Mobile Sea Gulls | Southern Association | , | ||
| Henry Rhoades | 1910 | +6/11+ | Werden’s All Stars | Independent | , | ||
| Henry Rhoades | 1910 | Milbank MN | Independent | , | |||
| Frank Rhoton | rhoton001fra | 1910 | 23 g. | Mobile Sea Gulls | Southern Association | , | |
| Frank Rhoton | rhoton001fra | 1910 | 86 g. | Augusta Tourists | South Atlantic League | , | |
| Frank Richards | richar001fra | 1910 | 122 g. | Rockford Reds | Wisconsin-Illinois League | , | |
| Samuel Richardson | 1910 | Raleigh Red Birds | Eastern Carolina League | , | |||
| Reggie Richter | richte001emi | 1910 | 49 g. | Louisville Colonels | American Association | , | |
| Walter Rickard | 1910 | 110 g. | Greensboro Champs | Carolina Association | , | ||
| Joe Rickert | ricker001jos | 1910 | 105 g. | Danville Red Sox | Virginia League | , | |
| Branch Rickey | rickey001wes | 1910-13 | U. Michigan | College | , | ||
| Robert Riggs | riggs-002rob | 1910 | 106 g. | Fort Worth Panthers | Texas League | , | |
| Daniel Riley | riley-001dan | 1910 | 108 g. | Galveston Sand Crabs | Texas League | , | |
| William Riley | 1910 | Green Bay Bays | Wisconsin-Illinois League | , | |||
| Albert Ritter | ritter001alb | 1910 | Caruthersville | Northeast Arkansas League | , | ||
| Ad C. Ritzman | 1910 | Hastings Brickmakers | Nebraska State League | , | |||
| Roxey Roach | roach-001wil | 1910 | 4/26- | 70 g. | New York | American League | New York, NY |
| Clay Robb | robb--001cla | 1910 | Bay City Rice Eaters | Southwest Texas League | , | ||
| Clay Robb | robb--001cla | 1910 | Laredo Bermudas | Southwest Texas League | , | ||
| Clay Robb | robb--001cla | 1910 | Beeville Orange Growers | Southwest Texas League | , | ||
| R. O. Roberts | 1910 | Vincennes Alices | Kentucky-Illinois-Tennessee League | , | |||
| R. O. Roberts | 1910 | Harrisburg Miners | Kentucky-Illinois-Tennessee League | , | |||
| James Robertson | robert007jam | 1910 | Buffalo Bisons | Eastern League | , | ||
| William Robertson | robert009wil | 1910 | 28 g. | Fort Wayne Billikens | Central League | , | |
| Chick Robitaille | robita001jos | 1910 | 36 g. | Utica Utes | New York State League | , | |
| Roy Rock | rock--002roy | 1910 | 125 g. | Providence Grays | Eastern League | , | |
| Ike Rockenfield | rocken001isa | 1910 | 151 g. | Tacoma Tigers | Northwestern League | , | |
| L. C. Rodman | 1910 | Lincoln Abes | Illinois-Missouri League | , | |||
| L. C. Rodman | 1910 | Beardstown/Jacksonville Jacks | Illinois-Missouri League | , | |||
| Edward Rogers | 1910 | 16 g. | Atlanta Crackers | Southern Association | , | ||
| Edward Rogers | 1910 | 18 g. | San Antonio Bronchos | Texas League | , | ||
| Henry Rogers | 1910 | no g. | Macon Peaches | South Atlantic League | , | ||
| Terry Rogers | rogers001ter | 1910-16 | Brid.-Police Dept | Independent | , | ||
| William Rogers | rogers001wil | 1910 | 27 g. | York White Roses | Tri-State League | , | |
| William Rogers | 1910 | Waterbury Finnegans | Connecticut State League | , | |||
| William Roland | roland001wil | 1910 | Wausau Lumberjacks | Minnesota-Wisconsin League | , | ||
| William Roland | roland001wil | 1910 | Rochester Roosters | Minnesota-Wisconsin League | , | ||
| Raymond Rolling | rollin001ray | 1910 | 103 g. | Greenwood Chauffeurs | Cotton States League | , | |
| Thomas Ronan | 1910 | 46 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| Charles Rose | rose--004cha | 1910 | 122 g. | Aurora Islanders | Wisconsin-Illinois League | , | |
| Chuck Rose | rose--001cha | 1910 | 27 g. | Houston Buffaloes | Texas League | , | |
| Art Ross | ross--001art | 1910 | Vernon Tigers | Pacific Coast League | , | ||
| Art Ross | ross--001art | 1910 | Los Angeles Angels | Pacific Coast League | , | ||
| Henry Rossback | 1910 | +5/16-6/17 | Winnipeg Maroons | Western Canada League | , | ||
| Henry Rossback | 1910 | 6/23-8/24 | Aberdeen SD | Independent | , | ||
| Henry Rossback | 1910 | 8/27- | Huron SD | East South Dakato | , | ||
| Andy Roth | roth--001and | 1910 | 57 g. | Spartanburg Spartans | Carolina Association | , | |
| Andy Roth | roth--001and | 1910 | Anderson Electricians | Carolina Association | , | ||
| Bill Roth | roth--001wil | 1910 | 23 g. | Flint Vehicles | Southern Michigan League | , | |
| Bill Roth | roth--001wil | 1910 | 124 g. | Los Angeles Angels | Pacific Coast League | , | |
| Claude Roth | 1910-12 | Alle.-Ballettes | Independent | , | |||
| Frank Roth | roth--001fra | 1910 | 26 g. | Cincinnati | National League | Cincinnati, OH | |
| Allen Roudebush | 1910 | 68 g. | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Billy Rourke | rourke001wil | 1910 | Omaha Rourkes | Western League | , | ||
| Thomas Rouse | 1910 | 109 g. | Quincy Vets | Central Association | , | ||
| George Routt | 1910 | 28 g. | McPherson Merry Macks | Kansas State League | , | ||
| George Routt | 1910 | +8/21+ | Omaha-Farrells | Independent | , | ||
| Dave Rowan | rowan-001dav | 1910 | 135 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | |
| Jack Rowan | rowan-001joh | 1910 | 42 g. | Cincinnati | National League | Cincinnati, OH | |
| William Rowe | 1910 | 90 g. | Lynchburg Shoemakers | Virginia League | , | ||
| Clarence Royer | 1910 | 39 g. | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| E. R. Rozine | 1910 | 23 g. | Hutchinson Salt Packers | Kansas State League | , | ||
| John Rudinski | rudins001joh | 1910 | Buffalo-semi-pro | Independent | , | ||
| Dick Rudolph | rudolp001ric | 1910 | 44 g. | Toronto Maple Leafs | Eastern League | , | |
| Dick Rudolph | rudolp001ric | 1910 | 9/30 | New York | National League | New York, NY | |
| Grover Ruff | 1910 | 52 g. | Lancaster Lanks | Ohio State League | , | ||
| Rumsey | 1910 | El Paso | Independent | , | |||
| Russell | 1910 | 46 g. | Hopkinsville Hoppers | Kentucky-Illinois-Tennessee League | , | ||
| Russell | 1910 | 22 g. | Raymond Cougars | Washington State League | , | ||
| Lefty Russell | russel002cha | 1910 | 47 g. | Baltimore Orioles | Eastern League | , | |
| Lefty Russell | russel002cha | 1910 | 10/1 | Philadelphia | American League | Philadelphia, PA | |
| William Russell | 1910 | 130 g. | Ottumwa Packers | Central Association | , | ||
| Austin Rutherford | ruther001aus | 1910 | 94 g. | Harrisburg Senators | Tri-State League | , | |
| Joseph Rutherford | ruther001jos | 1910 | 13 g. | Newark Newks | Ohio State League | , | |
| Ryan | 1910 | 14 g. | Norfolk Tars | Virginia League | , | ||
| Jack Ryan | ryan--004joh | 1910 | 18 g. | Jersey City Skeeters | Eastern League | , | |
| Jack Ryan | ryan--001jac | 1910 | 42 g. | St. Paul Saints | American Association | , | |
| John Ryan | 1910 | 206 g. | Portland Beavers | Pacific Coast League | , | ||
| Raymond Ryan | ryan--001ray | 1910 | 62 g. | Birmingham Barons | Southern Association | , | |
| Jesse Ryerson | 1910 | 11 g. | Danville Red Sox | Virginia League | , | ||
| Edwin Sabrie | sabrie001edw | 1910 | 118 g. | Buffalo Bisons | Eastern League | , | |
| Herbert Sackett | 1910 | 108 ab | Beloit/Chapman | Central Kansas League | , | ||
| Joseph Safford | saffor001jos | 1910 | 125 g. | La Crosse Outcasts | Minnesota-Wisconsin League | , | |
| Leo Sage | sage--001leo | 1910 | 14 g. | Des Moines Boosters | Western League | , | |
| Leo Sage | sage--001leo | 1910 | 22 g. | Minneapolis Millers | American Association | , | |
| James Sager | sager-001jam | 1910 | 137 g. | Evansville River Rats | Central League | , | |
| Harry Saillard | sailla001har | 1910 | 50 g. | Lincoln Abes | Illinois-Missouri League | , | |
| Harry Saillard | sailla001har | 1910 | Joliet Jolly-ites/Sterling Infants | Northern Association | , | ||
| Walter Salm | salm--001wal | 1910 | 80 g. | Houston Buffaloes | Texas League | , | |
| William Salm | 1910 | Great Bend Millers | Kansas State League | , | |||
| William Salm | 1910 | Arkansas City Grays | Kansas State League | , | |||
| Gus Salve | salve-001aug | 1910 | 24 g. | Richmond Colts | Virginia League | , | |
| Lee Samuels | 1910 | Edmonton Eskimos | Western Canada League | , | |||
| Lee Samuels | 1910 | Lethbridge Miners | Western Canada League | , | |||
| Lee Samuels | 1910 | Moose Jaw Robin Hoods | Western Canada League | , | |||
| Nelson Sandherr | sandhe001nel | 1910 | 75 g. | Galveston Sand Crabs | Texas League | , | |
| Nelson Sandherr | sandhe001nel | 1910 | 32 g. | Youngstown Steelmen | Ohio-Pennsylvania League | , | |
| Jack Sarver | 1910 | 56 g. | Falls City Colts | Missouri-Iowa-Nebraska-Kansas League | , | ||
| Raymond Saveland | 1910 | 76 g. | Rockford Reds | Wisconsin-Illinois League | , | ||
| Raymond Saveland | 1910 | 33 g. | Shreveport Pirates | Texas League | , | ||
| Ralph Savidge | savidg001ral | 1910 | 31 g. | Rochester Bronchos | Eastern League | , | |
| Doc Scanlan | scanla001wil | 1910 | Brooklyn | National League | Brooklyn, NY | ||
| James Scanlon | 1910 | 76 g. | Beardstown/Jacksonville Jacks | Illinois-Missouri League | , | ||
| James Scanlon | 1910 | 17 g. | Columbus Discoverers | Nebraska State League | , | ||
| Edward Schaaf | schaaf001ed- | 1910 | Paragould Scouts | Northeast Arkansas League | , | ||
| George Schaefer | schaef002geo | 1910 | 31 g. | Vernon Tigers | Pacific Coast League | , | |
| Louis Schan | schan-001lou | 1910 | 72 g. | San Antonio Bronchos | Texas League | , | |
| Harry Schantz | 1910 | 12 g. | Akron Champs | Ohio-Pennsylvania League | , | ||
| Bill Schardt | schard001wil | 1910 | 43 g. | Milwaukee Brewers | American Association | , | |
| Frank Schaub | schaub001fra | 1910 | 115 g. | Oshkosh Indians | Wisconsin-Illinois League | , | |
| William Schaub | 1910 | Mt. St. Joseph ColCollege | , | ||||
| William Schaub | 1910 | Mannington | West Virginia League | , | |||
| William Schaub | 1910 | 14 g. | Norfolk Tars | Virginia League | , | ||
| Lou Schiappacasse | schiap001lou | 1910 | 47 g. | Muskegon Speed Boys | Michigan State League | , | |
| George Schirm | 1910 | 38 g. | Buffalo Bisons | Eastern League | , | ||
| Larry Schlafly | schlaf001har | 1910 | 142 g. | Newark Indians | Eastern League | , | |
| Peter Schlensker | 1910 | 261 ab | Ellsworth Blues | Central Kansas League | , | ||
| Victor Schlitzer | schlit001vic | 1910 | 25 g. | Chattanooga Lookouts | Southern Association | , | |
| George Schmick | 1910 | The Citadel | College | , | |||
| George Schmick | 1910 | Zanesville Potters | Central League | , | |||
| George Schmick | 1910 | South Bend Bronchos | Central League | , | |||
| Gustave Schmidt | 1910 | 29 g. | Elmira Colonels | New York State League | , | ||
| Herbert Schmidt | 1910 | 96 g. | Racine Belles | Wisconsin-Illinois League | , | ||
| Oscar Schmidt | 1910 | Winchester Hustlers | Blue Grass League | , | |||
| Oscar Schmidt | 1910 | Paris Bourbonites | Blue Grass League | , | |||
| Walter Schmidt | 1910 | 101 g. | Roanoke Tigers | Virginia League | , | ||
| John Schmirler | 1910 | 13 g. | Peoria Distillers | Illinois-Indiana-Iowa League | , | ||
| Clay Schoonover | 1910 | 89 g. | Hutchinson Salt Packers | Kansas State League | , | ||
| Clay Schoonover | 1910 | 38 g. | Omaha Rourkes | Western League | , | ||
| Grant Schopp | schopp001gra | 1910 | 29 ab | Abilene Reds | Central Kansas League | , | |
| Francis Schott | 1910 | Appleton Papermakers | Wisconsin-Illinois League | , | |||
| August Schrader | 1910 | 116 g. | Danville Red Sox | Virginia League | , | ||
| Joe Schrall | schral001jos | 1910 | , | ||||
| Ossee Schrecongost | schrec001oss | 1910 | 71 g. | Louisville Colonels | American Association | , | |
| Ossee Schrecongost | schrec001oss | 1910 | 29 g. | Marion Diggers | Ohio State League | , | |
| Frank Schreiner | schrin001f-- | 1910 | La Crosse Outcasts | Minnesota-Wisconsin League | , | ||
| Schuler | 1910 | 20 g. | Chillicothe Infants | Ohio State League | , | ||
| John Schuler | 1910 | 69 g. | Burlington Pathfinders | Central Association | , | ||
| Henry Schultz | 1910 | 36 g. | Savannah Indians | South Atlantic League | , | ||
| Henry Schultz | 1910 | 12 g. | Beeville Orange Growers | Southwest Texas League | , | ||
| William Schumaker | 1910 | 31 g. | Columbia Gamecocks | South Atlantic League | , | ||
| William Schumaker | 1910 | 51 g. | Fayetteville Highlanders | Eastern Carolina League | , | ||
| Hack Schumann | schuma002car | 1910 | , | ||||
| Walter Schwabe | 1910 | Medicine Hat Mad Hatters/Saskatoon Berrypickers | Western Canada League | , | |||
| Rudy Schwenck | schwen001rud | 1910 | 14 g. | Louisville Colonels | American Association | , | |
| Jim Scott | scott-001jam | 1910 | 41 g. | Chicago | American League | Chicago, IL | |
| Joseph Scott | scott-004jos | 1910 | 35 g. | Racine Belles | Wisconsin-Illinois League | , | |
| William Scudder | scudde001wil | 1910 | -8/? | Portsmouth Cobblers | Ohio State League | , | |
| James Seabough | seabou001jam | 1910 | 109 g. | Nashville Volunteers | Southern Association | , | |
| Thomas Searles | searle001tho | 1910 | Waterloo Boosters | Illinois-Indiana-Iowa League | , | ||
| Harry Sears | sears-001har | 1910 | St. Helena/Fruitvale/Alameda Alerts | Central California League | , | ||
| Harry Sears | sears-001har | 1910 | Sacramento Baby Senators | California State League | , | ||
| Joseph Seaton | 1910 | 102 g. | Seattle Giants | Northwestern League | , | ||
| Thomas Seaton | 1910 | 52 g. | Portland Beavers | Pacific Coast League | , | ||
| Henry Seebach | 1910 | Lexington Colts | Blue Grass League | , | |||
| Henry Seebach | 1910 | Shelbyville/Maysville Rivermen | Blue Grass League | , | |||
| Henry Seebach | 1910 | Frankfort Statesmen | Blue Grass League | , | |||
| Charles Seitz | 1910 | Mobile Sea Gulls | Southern Association | , | |||
| Charles Seitz | 1910 | Atlanta Crackers | Southern Association | , | |||
| Kip Selbach | selbac001alb | 1910 | 77 g. | Harrisburg Senators | Tri-State League | , | |
| Oliver Sellers | seller001oli | 1910 | 99 g. | McKeesport Tubers | Ohio-Pennsylvania League | , | |
| Frederick Sensenbach | 1910 | 133 g. | Keokuk Indians | Central Association | , | ||
| Frederick Sensenbach | 1910 | Galesburg Pavers | Central Association | , | |||
| Paul Sentell | sentel001leo | 1910 | 77 g. | Atlanta Crackers | Southern Association | , | |
| Albert Servatius | servat001alb | 1910 | 94 g. | McKeesport Tubers | Ohio-Pennsylvania League | , | |
| Charlie Shaffer | shaffe001cha | 1910 | 18 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | |
| Bert Shaner | shaner001ber | 1910 | 36 g. | Wichita Jobbers | Western League | , | |
| Bert Shaner | shaner001ber | 1910 | Waterloo Boosters | Illinois-Indiana-Iowa League | , | ||
| Howie Shanks | shanks001how | 1910 | East Liverpool Potters | Ohio-Pennsylvania League | , | ||
| Frank Shannon | shanno002fra | 1910 | 46 g. | Brockton Shoemakers | New England League | , | |
| Owen Shannon | shanno001owe | 1910 | 55 g. | Mobile Sea Gulls | Southern Association | , | |
| James Sharp | 1910 | 33 g. | Wilson Tobacconists | Eastern Carolina League | , | ||
| James Sharp | 1910 | 58 g. | Lynchburg Shoemakers | Virginia League | , | ||
| Thomas Sharp | 1910 | +4/22-4/26+ | Bingham NC | Independent | , | ||
| Thomas Sharp | 1910 | 73 g. | Goldsboro Giants | Eastern Carolina League | , | ||
| Shag Shaughnessy | shaugh001fra | 1910 | 115 g. | Roanoke Tigers | Virginia League | , | |
| Shaw | 1910 | 39 g. | Norwich Bonbons/Meriden Doublins | Connecticut Association | , | ||
| Carl Shaw | 1910 | 68 g. | Holland Wooden Shoes | Michigan State League | , | ||
| Frank Shaw | shaw--001fra | 1910 | 52 g. | Madison Senators | Wisconsin-Illinois League | , | |
| Hunky Shaw | shaw--001roy | 1910 | 155 g. | San Francisco Seals | Pacific Coast League | , | |
| Danny Shea | shea--001dan | 1910 | 4/24- | Seattle Giants | Northwestern League | , | |
| Danny Shea | shea--001dan | 1910 | +9/26+ | Spokane Indians | Northwestern League | , | |
| John Shea | shea--002joh | 1910 | St. Joseph Drummers | Western League | , | ||
| John Shea | shea--002joh | 1910 | Topeka Jayhawks | Western League | , | ||
| Dave Shean | shean-001dav | 1910 | 150 g. | Boston | National League | Boston, MA | |
| Clarence Sheehan | 1910 | Streator IL | Trolley League | , | |||
| James Sheffield | 1910 | 115 g. | Victoria Rosebuds | Southwest Texas League | , | ||
| W. Everett Sheffield | 1910 | 116 g. | Laredo Bermudas | Southwest Texas League | , | ||
| William Sheffield | sheffi001--- | 1910 | Gainesville Tx | Independent | , | ||
| Joe Sheridan | 1910 | Lowell Tigers | New England League | , | |||
| Joseph Sheridan | 1910 | 56 g. | Wilson Tobacconists | Eastern Carolina League | , | ||
| Ralph Sherwin | 1910 | Dartmouth Col. | College | , | |||
| George Sherwood | sherwo002geo | 1910 | 123 g. | New Haven Prairie Hens | Connecticut State League | , | |
| Simon Shetter | 1910 | +6/21+ | Umpire | New York State League | , | ||
| Charlie Shields | shield002cha | 1910 | 52 g. | Meridian White Ribbons | Cotton States League | , | |
| Chester Shields | 1910 | York White Roses | Tri-State League | , | |||
| James Shinn | 1910 | 187 g. | Sacramento Sacts | Pacific Coast League | , | ||
| Harry Short | 1910 | 255 ab | Concordia Travelers | Central Kansas League | , | ||
| Ed Shortell | shorte001edw | 1910 | 111 g. | Altoona Rams | Tri-State League | , | |
| William Shultz | 1910 | 93 g. | Brandon Angels | Western Canada League | , | ||
| Harry Siebert | 1910 | +7/23+ | 54 g. | Aurora Islanders | Wisconsin-Illinois League | , | |
| Harry Siebert | 1910 | 9/11 | Milwaukee Brewers | American Association | , | ||
| Johnny Siegle | siegle001joh | 1910 | 102 g. | Nashville Volunteers | Southern Association | , | |
| Hack Simmons | simmon001geo | 1910 | 4/15- | 42 g. | Detroit | American League | Detroit, MI |
| Hack Simmons | simmon001geo | 1910 | 36 g. | Rochester Bronchos | Eastern League | , | |
| Mike Simon | simon-003mic | 1910 | 22 g. | Pittsburgh | National League | Pittsburgh, PA | |
| H. L. Simpson | 1910 | Bay City Rice Eaters | Southwest Texas League | , | |||
| Oscar Simpson | 1910 | Charleston Med | , | ||||
| Oscar Simpson | 1910 | Charleston Med | , | ||||
| Lawrence Sinex | sinex-001law | 1910 | 127 g. | Frankfort Statesmen | Blue Grass League | , | |
| Lawrence Sinex | sinex-001law | 1910 | Lexington Colts | Blue Grass League | , | ||
| Charles Sisson | 1910 | 96 g. | Columbus Foxes | South Atlantic League | , | ||
| Carl Sitton | sitton001car | 1910 | 39 g. | Columbus Senators | American Association | , | |
| Walter Sizemore | sizemo001wal | 1910 | 45 g. | Lyons Lions | Kansas State League | , | |
| Alfred Skillman | 1910 | 16 g. | Johnstown Johnnies | Tri-State League | , | ||
| Walt Slagle | slagle001wal | 1910 | 5/4 | Cincinnati | National League | Cincinnati, OH | |
| Walt Slagle | slagle001wal | 1910 | Indianapolis Indians | American Association | , | ||
| Walt Slagle | slagle001wal | 1910 | Louisville Colonels | American Association | , | ||
| Cyril Slapnicka | 1910 | Muscatine Pearl Finders | Northern Association | , | |||
| Cyril Slapnicka | 1910 | 29 g. | Rockford Reds | Wisconsin-Illinois League | , | ||
| Jack Slattery | slatte001joh | 1910 | 100 g. | Toronto Maple Leafs | Eastern League | , | |
| Joseph Slattery | 1910 | 133 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Barney Slaughter | slaugh001byr | 1910 | 8/9-10/11 | Philadelphia | National League | Philadelphia, PA | |
| Walter Slavin | 1910 | 76 g. | Laredo Bermudas | Southwest Texas League | , | ||
| Walter Slear | slear-001wal | 1910 | 95 g. | Jackson Convicts | Southern Michigan League | , | |
| James Slevin | 1910 | 46 g. | McKeesport Tubers | Ohio-Pennsylvania League | , | ||
| James Slevin | 1910 | 44 g. | Flint Vehicles | Southern Michigan League | , | ||
| Arthur Smith | smith-007art | 1910 | 127 g. | Lynchburg Shoemakers | Virginia League | , | |
| Billy Smith | smith-011wil | 1910 | Buffalo Bisons | Eastern League | , | ||
| Billy Smith | smith-011wil | 1910 | Saginaw Wa-was | Southern Michigan League | , | ||
| Bull Smith | smith-001lew | 1910 | Clarksburg Bees | West Virginia League | , | ||
| Carlos Smith | smith-006car | 1910 | 134 g. | Shreveport Pirates | Texas League | , | |
| Dick Smith | smith-018ric | 1910 | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| Ed Smith | smith-001rhe | 1910 | Notre Dame | College | , | ||
| Ed Smith | smith-001rhe | 1910 | 37 g. | South Bend Bronchos | Central League | , | |
| Edward Smith | 1910 | 30 g. | Hutchinson Salt Packers | Kansas State League | , | ||
| Elmer Smith | smith-005elm | 1910 | 33 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | |
| Elmer Smith | smith-005elm | 1910 | 66 g. | Canton Chinks | Illinois-Missouri League | , | |
| Frank Smith | smith-004fra | 1910 | Madison Senators | Wisconsin-Illinois League | , | ||
| Harry Smith | smith-018har | 1910 | -9/15 | 70 g. | Boston | National League | Boston, MA |
| Hugh Smith | 1910 | 122 g. | Los Angeles Angels | Pacific Coast League | , | ||
| Joe Smith | smith-007jos | 1910 | Trenton Tigers | Tri-State League | , | ||
| Samuel Smith | smith-007sam | 1910 | 20 g. | Toronto Maple Leafs | Eastern League | , | |
| Samuel Smith | smith-007sam | 1910 | 2 g. | Hartford Senators | Connecticut State League | , | |
| Samuel Smith | smith-007sam | 1910 | Elmira Colonels | New York State League | , | ||
| Syd Smith | smith-001syd | 1910 | 141 g. | Atlanta Crackers | Southern Association | , | |
| Syd Smith | smith-001syd | 1910 | 9 g. | Cleveland | American League | Cleveland, OH | |
| Wib Smith | smith-003wil | 1910 | 79 g. | Minneapolis Millers | American Association | , | |
| William Smith | 1910 | 25 g. | Norwich Bonbons/Meriden Doublins | Connecticut Association | , | ||
| William Smith | 1910 | Willimantic Colts | Connecticut Association | , | |||
| Edward Smithson | 1910 | 33 g. | Moose Jaw Robin Hoods | Western Canada League | , | ||
| Homer Smoot | smoot-001hom | 1910 | Louisville Colonels | American Association | , | ||
| Homer Smoot | smoot-001hom | 1910 | Kansas City Blues | American Association | , | ||
| Frank Smykal | smykal001fra | 1910 | Eau Claire Commissioners | Minnesota-Wisconsin League | , | ||
| Frank Smykal | smykal001fra | 1910 | Wausau Lumberjacks | Minnesota-Wisconsin League | , | ||
| Earl Snapp | 1910 | 112 g. | Fort Worth Panthers | Texas League | , | ||
| Snyder | 1910 | 15 g. | Red Cloud Cloud | Nebraska State League | , | ||
| Norman Snyder | 1910 | Army | , | ||||
| Roy Snyder | snyder001roy | 1910 | Bloomington Bloomers | Illinois-Indiana-Iowa League | , | ||
| Roy Snyder | snyder001roy | 1910 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Van Snyder | snyder002c-- | 1910 | Hamilton MT | Independent | , | ||
| William Snyder | snyder006wil | 1910 | 137 g. | Evansville River Rats | Central League | , | |
| Gus Soffel | soffel001aug | 1910 | 109 g. | Hartford Senators | Connecticut State League | , | |
| Gus Soffel | soffel001aug | 1910 | +8/9+ | Pittsburgh AC | Independent | , | |
| Percy Solbraa | 1910 | 52 g. | Winona Pirates | Minnesota-Wisconsin League | , | ||
| Percy Solbraa | 1910 | Superior Red Sox | Minnesota-Wisconsin League | , | |||
| Herbert Sommers | 1910 | 158 g. | Abilene Reds | Central Kansas League | , | ||
| Rudolph Sommers | 1910 | 40 g. | Terre Haute Stags | Central League | , | ||
| Lawrence Spahr | 1910 | 29 g. | Jersey City Skeeters | Eastern League | , | ||
| Lawrence Spahr | 1910 | 52 g. | McLeansboro Billikens | Kentucky-Illinois-Tennessee League | , | ||
| Joseph Spaid | 1910 | 11 g. | Beardstown/Jacksonville Jacks | Illinois-Missouri League | , | ||
| Alva Spangler | spangl001alv | 1910 | 141 g. | Galveston Sand Crabs | Texas League | , | |
| Albert Spanton | spanto001a-- | 1910 | Grafton ND | Independent | , | ||
| Sparks | 1910 | 32 g. | Bay City Rice Eaters | Southwest Texas League | , | ||
| James Sparks | sparks001bax | 1910 | 45 g. | Vicksburg Hill Billies | Cotton States League | , | |
| Tully Sparks | sparks001tho | 1910 | 11 g. | Chattanooga Lookouts | Southern Association | , | |
| William Speas | 1910 | 151 g. | Portland Beavers | Pacific Coast League | , | ||
| Howard Speck | speck-001how | 1910 | 59 g. | Bartlesville Boosters | Western Association | , | |
| Al Speiser | speise001a-- | 1910 | Winnipeg Maroons | Western Canada League | , | ||
| James Spellman | 1910 | Superior Brickmakers | Nebraska State League | , | |||
| Spencer | 1910 | 84 g. | Edmonton Eskimos | Western Canada League | , | ||
| Albert Spencer | spence001alb | 1910 | Indianapolis Indians | American Association | , | ||
| Albert Spencer | spence001alb | 1910 | Milwaukee Brewers | American Association | , | ||
| Collis Spencer | spence001col | 1910 | 125 g. | Galveston Sand Crabs | Texas League | , | |
| Hack Spencer | spence001fre | 1910 | 59 g. | Hannibal Cannibals | Central Association | , | |
| Ray Spencer | 1910 | New Orleans Pelicans | Southern Association | , | |||
| Ray Spencer | 1910 | Montgomery Climbers | Southern Association | , | |||
| Ray Spencer | 1910 | 108 g. | Dayton Veterans | Central League | , | ||
| Walter Sporer | 1910 | 91 g. | Shenandoah Pin Rollers | Missouri-Iowa-Nebraska-Kansas League | , | ||
| Fred Springs | spring001fre | 1910 | Spartanburg Spartans | Carolina Association | , | ||
| Fred Springs | spring001fre | 1910 | Greensboro Champs | Carolina Association | , | ||
| Roy St. John | stjohn001roy | 1910 | Beloit/Chapman | Central Kansas League | , | ||
| Robert Stafford | staffo003rob | 1910 | 47 g. | Portsmouth Truckers/Petersburg Goobers | Virginia League | , | |
| Jake Stahl | stahl-001gar | 1910 | 144 g. | Boston | American League | Boston, MA | |
| Charles Staley | 1910 | +5/4-5/7+ | Scranton Miners | New York State League | , | ||
| Charles Staley | 1910 | 122 g. | Danville Speakers | Illinois-Indiana-Iowa League | , | ||
| John Stamm | stamm-001joh | 1910 | Yazoo City Zoos | Cotton States League | , | ||
| John Stamm | stamm-001joh | 1910 | Hattiesburg Timberjacks | Cotton States League | , | ||
| Alfred Standridge | 1910 | 68 g. | Calgary Bronchos | Western Canada League | , | ||
| Buck Stanley | stanle001joh | 1910 | 35 g. | Johnstown Johnnies | Tri-State League | , | |
| Joe Stanley | stanle003jos | 1910 | 162 g. | Louisville Colonels | American Association | , | |
| John Stansbury | 1910 | 75 g. | Williamsport Millionaires | Tri-State League | , | ||
| Stark | 1910 | 67 g. | Winona Pirates | Minnesota-Wisconsin League | , | ||
| Claude Stark | stark-001cla | 1910 | 55 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | |
| Dolly Stark | stark-001mon | 1910 | 105 g. | Dayton Veterans | Central League | , | |
| Dolly Stark | stark-001mon | 1910 | 30 g. | Brooklyn | National League | Brooklyn, NY | |
| Con Starkel | starke001con | 1910 | 35 g. | Moose Jaw Robin Hoods | Western Canada League | , | |
| Con Starkel | starke001con | 1910 | Chehalis Gophers | Washington State League | , | ||
| George Starnagle | starna001geo | 1910 | 11 g. | Rochester Bronchos | Eastern League | , | |
| Joseph Staub | 1910 | , | |||||
| Fred Steele | steele001fre | 1910 | 30 g. | Savannah Indians | South Atlantic League | , | |
| William Steen | 1910 | 55 g. | Portland Beavers | Pacific Coast League | , | ||
| Harry Steiger | 1910 | 30 g. | Springfield Senators | Illinois-Indiana-Iowa League | , | ||
| Harry Steiger | 1910 | 25 g. | St. Paul Saints | American Association | , | ||
| John Stelle | 1910 | 32 g. | McLeansboro Billikens | Kentucky-Illinois-Tennessee League | , | ||
| Fred Stem | stem--001fre | 1910 | 169 g. | Sioux City Packers | Western League | , | |
| Louis Sterling | sterli001lou | 1910 | +5/16-7/19+ | Bay City | Southern Michigan League | , | |
| Louis Sterling | sterli001lou | 1910 | +7/28-9/18+ | Adrian Yeggs | Southern Michigan League | , | |
| Carl Sterzer | 1910 | 36 g. | Evansville River Rats | Central League | , | ||
| Carl Sterzer | 1910 | 36 g. | Evansville River Rats | Central League | , | ||
| Walter Stevens | stjohn004--- | 1910 | 148 g. | Tacoma Tigers | Northwestern League | , | |
| Carlton Stewart | 1910 | 128 g. | Kalamazoo Kazoos | Southern Michigan League | , | ||
| Charles Stewart | stewar001duc | 1910 | Rochester Roosters | Minnesota-Wisconsin League | , | ||
| Henry Stickney | stickn001abr | 1910 | 71 g. | Hattiesburg Timberjacks | Cotton States League | , | |
| George Stinson | stinso001geo | 1910 | 133 g. | San Antonio Bronchos | Texas League | , | |
| Charles Stis | 1910 | 115 g. | New Haven Prairie Hens | Connecticut State League | , | ||
| Charles Stis | 1910 | Holyoke Papermakers | Connecticut State League | , | |||
| Stofer | 1910 | 21 g. | Danville Speakers | Illinois-Indiana-Iowa League | , | ||
| Earl Stoffer | 1910 | 70 g. | Topeka Jayhawks | Western League | , | ||
| Harry Stoney | stoney001har | 1910 | +8/15+ | Logan-Boosters | Independent | , | |
| Harry Storch | storch001har | 1910 | 121 g. | Dallas Giants | Texas League | , | |
| Tom Stouch | stouch001tom | 1910 | 82 g. | Greenville Spinners | Carolina Association | , | |
| George Stovall | stoval001geo | 1910 | Cleveland | American League | Cleveland, OH | ||
| Jesse Stovall | stoval001jes | 1910 | 121 g. | Vernon Tigers | Pacific Coast League | , | |
| Paul Stowers | 1910 | 31 g. | Omaha Rourkes | Western League | , | ||
| Sammy Strang | strang001sam | 1910 | 61 g. | Baltimore Orioles | Eastern League | , | |
| Stratton | 1910 | Holland Wooden Shoes | Michigan State League | , | |||
| Milo Stratton | stratt001mil | 1910 | 119 g. | Wheeling Stogies | Central League | , | |
| Harry Streaser | 1910 | 37 g. | Lynn Shoemakers | New England League | , | ||
| Harry Streaser | 1910 | Brockton Shoemakers | New England League | , | |||
| Harry Streaser | 1910 | 37 g. | Lynn Shoemakers | New England League | , | ||
| Harry Streaser | 1910 | Brockton Shoemakers | New England League | , | |||
| Julie Streib | streib001jul | 1910 | 164 g. | Vancouver Beavers | Northwestern League | , | |
| Theodore Streib | streib001the | 1910 | +4/28+ | Oakland Invaders/Merced Fig Growers | California State League | , | |
| Hugh Stringer | 1910 | 19 g. | Corpus Christi Pelicans | Southwest Texas League | , | ||
| Hugh Stringer | 1910 | 39 g. | Galveston Sand Crabs | Texas League | , | ||
| Thomas Stringer | 1910 | Clevland City League | , | ||||
| Thomas Stringer | 1910 | Milwaukee Brewers | American Association | , | |||
| Herman Strom | strom-001her | 1910 | +7/22+ | 21 g. | Canton Deubers | Ohio-Pennsylvania League | , |
| Alden Strong | 1910 | 248 ab | Manhattan Maroons | Central Kansas League | , | ||
| Wilbur Strong | 1910 | 203 ab | Clay Center Cubs | Central Kansas League | , | ||
| Fred Strood | strood001fre | 1910 | 103 g. | Erie Sailors | Ohio-Pennsylvania League | , | |
| Con Strothers | stroth001joh | 1910 | Livingston | Montana League | , | ||
| Stroud | 1910 | 103 g. | Erie Sailors | Ohio-Pennsylvania League | , | ||
| Ralph Stroud | stroud002ral | 1910 | 4/29- | 28 g. | Detroit | American League | Detroit, MI |
| Amos Strunk | strunk001amo | 1910 | 16 g. | Philadelphia | American League | Philadelphia, PA | |
| William Sturgeon | 1910 | 21 g. | Medicine Hat Mad Hatters/Saskatoon Berrypickers | Western Canada League | , | ||
| Wilford Sullinger | sullin001f-- | 1910 | Tucson AZ | Independent | , | ||
| John Sullivan | sulliv004joh | 1910 | 28 g. | Kansas City Blues | American Association | , | |
| John Sullivan | sulliv004joh | 1910 | Lowell Tigers | New England League | , | ||
| John Sullivan | sulliv004joh | 1910 | Fall River Indians | New England League | , | ||
| Suter Sullivan | sulliv002sut | 1910 | Louisville Colonels | American Association | , | ||
| Ted Sullivan | sulliv001tp- | 1910 | Clinton Teddies | Northern Association | , | ||
| Ed Summers | summer001ora | 1910 | 30 g. | Detroit | American League | Detroit, MI | |
| John Sundheim | 1910 | 105 g. | Trenton Tigers | Tri-State League | , | ||
| John Sundheim | 1910 | 105 g. | Trenton Tigers | Tri-State League | , | ||
| Bert Supplee | 1910 | 15 g. | Cadillac Chiefs | Michigan State League | , | ||
| Harry Suter | suter-001har | 1910 | 36 g. | San Francisco Seals | Pacific Coast League | , | |
| Claude Suttles | 1910 | 106 g. | Macomb Potters | Illinois-Missouri League | , | ||
| Claude Suttles | 1910 | Clinton Champs | Illinois-Missouri League | , | |||
| Sutton | 1910 | 26 g. | Hattiesburg Timberjacks | Cotton States League | , | ||
| George Sutton | 1910 | Kansas City | InterCity | , | |||
| George Sutton | 1910 | +5/19 | 250 ab | Concordia Travelers | Central Kansas League | , | |
| Albert Swalm | swalm-001alb | 1910 | 57 g. | Memphis Turtles | Southern Association | , | |
| Albert Swalm | swalm-001alb | 1910 | Jacksonville Jacks | Northern Association | , | ||
| Charles Swalm | 1910 | 48 g. | Hannibal Cannibals | Central Association | , | ||
| Harry Swalm | swalm-001har | 1910 | Joliet Jolly-ites/Sterling Infants | Northern Association | , | ||
| Oscar Swan | swann-001o-- | 1910 | Kansas City Blues | American Association | , | ||
| Ivor Swanson | swanso001ivo | 1910 | 45 g. | Hartford Senators | Connecticut State League | , | |
| Ivor Swanson | swanso001ivo | 1910 | Bridgeport Orators | Connecticut State League | , | ||
| Hugo Swartling | 1910 | 113 g. | Zanesville Potters | Central League | , | ||
| Alex. Sweeney | sweene001ale | 1910 | Umpire | Ohio-Pennsylvania League | , | ||
| Bert Sweeney | 1910 | 12 g. | Eau Claire Commissioners | Minnesota-Wisconsin League | , | ||
| Bill Sweeney | sweene001wil | 1910 | 150 g. | Boston | National League | Boston, MA | |
| James Swift | 1910 | 43 g. | St. Joseph Drummers | Western League | , | ||
| Len Swormstedt | sworms001leo | 1910 | 33 g. | Troy Trojans | New York State League | , | |
| Harry Syfert | syfert001har | 1910 | +5/23+ | Binghamton Bingoes | New York State League | , | |
| Harry Sylvester | 1910-12 | Lawrence Univ. | College | , | |||
| William Taaffe | taffee001w-- | 1910 | 121 g. | Jacksonville Jays | South Atlantic League | , | |
| Elmer Tadlock | 1910 | preseason | Paducah Indians | Kentucky-Illinois-Tennessee League | , | ||
| Frank Talbot | 1910 | Bay City | Southern Michigan League | , | |||
| Frank Talbot | 1910 | 22 g. | Cadillac Chiefs | Michigan State League | , | ||
| Frank Talbot | 1910 | Traverse City | Western Michigan | , | |||
| Robert Tarleton | tarlet001rob | 1910 | 78 g. | Wheeling Stogies | Central League | , | |
| Robert Tarleton | tarlet001rob | 1910 | 38 g. | Trenton Tigers | Tri-State League | , | |
| Frank Taxis | 1910 | 56 g. | Charlotte Hornets | Carolina Association | , | ||
| Bayard Taylor | 1910 | 23 g. | Anderson Electricians | Carolina Association | , | ||
| Charles Taylor | 1910 | Salina Trade Winners | Central Kansas League | , | |||
| Edward Taylor | 1910 | 140 g. | Dubuque Dubs | Illinois-Indiana-Iowa League | , | ||
| Edwin Taylor | 1910 | 61 g. | Bay City | Southern Michigan League | , | ||
| Luther Taylor | taylor001lut | 1910 | 34 g. | Buffalo Bisons | Eastern League | , | |
| M. Owen Taylor | taylor001m-- | 1910 | Superior Red Sox | Minnesota-Wisconsin League | , | ||
| Henry Te Roller | 1910 | Michigan State U | College | , | |||
| Henry Te Roller | 1910 | 65 g. | Holland Wooden Shoes | Michigan State League | , | ||
| Harvey Teal | teal--003har | 1910 | 30 g. | Altoona Rams | Tri-State League | , | |
| Curt Templin | templi001cur | 1910 | 111 g. | Winston-Salem Twins | Carolina Association | , | |
| Thomas Tennant | tennan001tho | 1910 | 223 g. | San Francisco Seals | Pacific Coast League | , | |
| Robert Thackam | 1910 | 14 g. | Spartanburg Spartans | Carolina Association | , | ||
| Parry Thackara | thacka001dav | 1910 | Waco Navigators | Texas League | , | ||
| Parry Thackara | thacka001dav | 1910 | San Antonio Bronchos | Texas League | , | ||
| Jesse Theobald | 1910 | 41 g. | Racine Belles | Wisconsin-Illinois League | , | ||
| George Therre | therre001geo | 1910 | 72 g. | Williamsport Millionaires | Tri-State League | , | |
| Jake Thielman | thielm001joh | 1910 | 33 g. | Oklahoma City Indians | Texas League | , | |
| Jack Thiery | thiery001joh | 1910 | 34 g. | Madison Senators | Wisconsin-Illinois League | , | |
| Thomas | thomas037--- | 1910 | 63 g. | Jackson Convicts | Southern Michigan League | , | |
| Bill Thomas | thomas007wil | 1910 | Marion Diggers | Ohio State League | , | ||
| Jack Thomas | thomas007joh | 1910 | 162 g. | Lincoln Railsplitters | Western League | , | |
| Walt Thomas | thomas010wil | 1910 | 40 g. | Larned Wheat Kings | Kansas State League | , | |
| Walt Thomas | thomas010wil | 1910 | 42 g. | Ottumwa Packers | Central Association | , | |
| Walt Thomas | thomas010wil | 1910 | Keokuk Indians | Central Association | , | ||
| Art Thomason | thomas003art | 1910 | 125 g. | Topeka Jayhawks | Western League | , | |
| Art Thomason | thomas003art | 1910 | 8/10-8/27 | Cleveland | American League | Cleveland, OH | |
| Frank Thompson | 1910 | 81 g. | Spartanburg Spartans | Carolina Association | , | ||
| Gus Thompson | thomps007joh | 1910 | Seattle Giants | Northwestern League | , | ||
| Jim Thorpe | thorpe001jam | 1910 | 29 g. | Rocky Mount Railroaders | Eastern Carolina League | , | |
| Jim Thorpe | thorpe001jam | 1910 | 16 g. | Fayetteville Highlanders | Eastern Carolina League | , | |
| Elmer Thorsen | 1910 | 42 g. | Los Angeles Angels | Pacific Coast League | , | ||
| Theodore Thorsen | 1910 | +5/28-7/21+ | Duluth White Sox | Minnesota-Wisconsin League | , | ||
| Theodore Thorsen | 1910 | +8/2-9/9+ | Superior Red Sox | Minnesota-Wisconsin League | , | ||
| Adolph Thoss | 1910 | 88 g. | Richmond Pioneers | Blue Grass League | , | ||
| George Tieman | tieman001geo | 1910 | 103 g. | Grand Rapids Raiders | Central League | , | |
| Jack Tighe | tighe-001joh | 1910 | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Jimmy Tilford | tilfor001jam | 1910 | Richmond Pioneers | Blue Grass League | , | ||
| Guy Titman | 1910 | 119 g. | Richmond Colts | Virginia League | , | ||
| Jack Toft | toft--001jam | 1910 | Lowell Tigers | New England League | , | ||
| John Tomlin | 1910 | 67 g. | Bay City Rice Eaters | Southwest Texas League | , | ||
| John Tomlin | 1910 | Laredo Bermudas | Southwest Texas League | , | |||
| Charles Tompkins | 1910 | Lancaster Lanks | Ohio State League | , | |||
| Thomas Toner | toner-001tho | 1910 | 81 g. | Portsmouth Truckers/Petersburg Goobers | Virginia League | , | |
| Thomas Toner | toner-001tho | 1910 | 1 g. | Portland Beavers | Pacific Coast League | , | |
| Charles Tonneman | 1910 | 51 g. | Toronto Maple Leafs | Eastern League | , | ||
| Thomas Tonneson | 1910 | 9 g. | Oakland Oaks | Pacific Coast League | , | ||
| Albert Tooley | 1910 | 138 g. | Rochester Bronchos | Eastern League | , | ||
| William Toomey | 1910 | 19 g. | Haverhill Hustlers | New England League | , | ||
| Raymond Topham | 1910 | 46 g. | Trenton Tigers | Tri-State League | , | ||
| Raymond Topham | 1910 | Johnstown Johnnies | Tri-State League | , | |||
| Roy Toren | toren-002roy | 1910 | 36 g. | Columbus Foxes | South Atlantic League | , | |
| Lucien Torrey | 1910 | 12 g. | Dallas Giants | Texas League | , | ||
| Lucien Torrey | 1910 | 11 g. | Mobile Sea Gulls | Southern Association | , | ||
| Theodore Touchstone | 1910 | Philadelphia Col | College | , | |||
| Theodore Touchstone | 1910 | Seaboard PA | Independent | , | |||
| Theodore Touchstone | 1910 | +8/17+ | Coatesville PA | Independent | , | ||
| Guy Townsend | townse001guy | 1910 | Creighton Univ. | College | , | ||
| Guy Townsend | townse001guy | 1910 | 99 g. | Kearney Kapitalists | Nebraska State League | , | |
| Grover Tracey | tracey001gro | 1910 | 16 g. | Seattle Giants | Northwestern League | , | |
| Charles Traeger | traege002cha | 1910 | Brandon Angels | Western Canada League | , | ||
| James Trainor | traino001jam | 1910 | no g. | Binghamton Bingoes | New York State League | , | |
| James Trainor | traino001jam | 1910 | 28 g. | Lawrence Colts | New England League | , | |
| J. M. Triplett | 1910 | Moose Jaw Robin Hoods | Western Canada League | , | |||
| J. M. Triplett | 1910 | Brandon Angels | Western Canada League | , | |||
| Paul Turgeon | 1910 | 106 g. | Lyons Lions | Kansas State League | , | ||
| Lee Tutt | tutt--001--- | 1910 | , | ||||
| Twohey | 1910 | 26 g. | Rochester Roosters | Minnesota-Wisconsin League | , | ||
| Vincent Tydeman | 1910 | 74 g. | Wilmington Sailors | Eastern Carolina League | , | ||
| Charles Ullman | 1910 | 114 g. | Canton Chinks | Illinois-Missouri League | , | ||
| Fred Ulrich | ulrich001fre | 1910 | 51 g. | New Bedford Whalers | New England League | , | |
| Armour Unrue | 1910 | 15 g. | New Castle Nocks | Ohio-Pennsylvania League | , | ||
| Lon Ury | ury---001lou | 1910 | 39 g. | Kewanee Boilermakers | Central Association | , | |
| Lon Ury | ury---001lou | 1910 | 90 g. | Bartlesville Boosters | Western Association | , | |
| Jerome Utley | utley-001jer | 1910 | Detroit A. C. | Independent | , | ||
| Bradley Valliere | 1910 | 40 g. | Kalamazoo Kazoos | Southern Michigan League | , | ||
| Deacon Van Buren | vanbur001edw | 1910 | 171 g. | Sacramento Sacts | Pacific Coast League | , | |
| Dow Van Dine | vandin001dow | 1910 | 37 g. | Winnipeg Maroons | Western Canada League | , | |
| Dow Van Dine | vandin001dow | 1910 | Jacksonville Jacks | Northern Association | , | ||
| Joseph Van | 1910 | 11 g. | Pekin Celestials | Illinois-Missouri League | , | ||
| Vance | 1910 | 29 g. | Norfolk Tars | Virginia League | , | ||
| Vance | 1910 | 13 g. | Rochester Roosters | Minnesota-Wisconsin League | , | ||
| Vance | 1910 | Winona Pirates | Minnesota-Wisconsin League | , | |||
| James Vance | 1910 | York White Roses | Tri-State League | , | |||
| James Vance | 1910 | Johnstown Johnnies | Tri-State League | , | |||
| Carl Vandagrift | vandag001car | 1910 | 127 g. | Adrian Yeggs | Southern Michigan League | , | |
| Anthony Vanderhill | vander001ant | 1910 | 40 g. | Bartlesville Boosters | Western Association | , | |
| Bobby Vaughn | vaughn002rob | 1910 | Toronto Maple Leafs | Eastern League | , | ||
| Asa Vealey | 1910 | Detr.-Schmitz | Independent | , | |||
| Charles Venable | venabl001cha | 1910 | 138 g. | Scranton Miners | New York State League | , | |
| Oscar Vickery | 1910 | 12 g. | Spartanburg Spartans | Carolina Association | , | ||
| William Viebahn | 1910 | 40 g. | Nashville Volunteers | Southern Association | , | ||
| James Viox | 1910 | 127 g. | Lexington Colts | Blue Grass League | , | ||
| Roland Vitter | vitter001rol | 1910 | +4/19+ | Lafourche LA | Independent | , | |
| Roland Vitter | vitter001rol | 1910 | 93 g. | Wellington Dukes | Kansas State League | , | |
| Samuel Vivian | 1910 | Tacoma Cubs | Washington State League | , | |||
| Samuel Vivian | 1910 | Raymond Cougars | Washington State League | , | |||
| Albert Vogel | 1910 | San Antonio Bronchos | Texas League | , | |||
| Albert Vogel | 1910 | 27 g. | Victoria Rosebuds | Southwest Texas League | , | ||
| Otto Vogel | 1910 | 144 g. | Rock Island Islanders | Illinois-Indiana-Iowa League | , | ||
| Charles Voltz | 1910 | Ohio-Pennsylvania League | , | ||||
| Rip Vowinkel | vowink001joh | 1910 | 40 g. | Buffalo Bisons | Eastern League | , | |
| Joseph Vyskocil | vyskoc001jos | 1910 | Hannibal Cannibals | Central Association | , | ||
| Jimmy Wacker | wacker001cha | 1910 | 31 g. | Dayton Veterans | Central League | , | |
| Charles Wadleigh | 1910 | 113 g. | Hartford Senators | Connecticut State League | , | ||
| Heinie Wagner | wagner001cha | 1910 | 142 g. | Boston | American League | Boston, MA | |
| Louis Wagner | wagner001l-- | 1910 | Augusta Tourists | South Atlantic League | , | ||
| Otto Wagner | wagner001ott | 1910 | 119 g. | Mobile Sea Gulls | Southern Association | , | |
| Harry Wahl | 1910 | Jacksonville Jays | South Atlantic League | , | |||
| Harry Wahl | 1910 | Augusta Tourists | South Atlantic League | , | |||
| Walker | 1910 | Concordia Travelers | Central Kansas League | , | |||
| Curtis Walker | 1910 | Jersey City Skeeters | Eastern League | , | |||
| Curtis Walker | 1910 | Danville Red Sox | Virginia League | , | |||
| Curtis Walker | 1910 | 27 g. | Binghamton Bingoes | New York State League | , | ||
| Curtis Walker | 1910 | 19 g. | Norfolk Tars | Virginia League | , | ||
| Dixie Walker | walker001ewa | 1910 | 29 g. | Washington | American League | Washington, DC | |
| Ed Walker | walker001edw | 1910 | 33 g. | Quincy Vets | Central Association | , | |
| Elliott Walker | 1910 | 94 g. | Laredo Bermudas | Southwest Texas League | , | ||
| Elliott Walker | 1910 | Beeville Orange Growers | Southwest Texas League | , | |||
| Elliott Walker | 1910 | Corpus Christi Pelicans | Southwest Texas League | , | |||
| Elliott Walker | 1910 | Bay City Rice Eaters | Southwest Texas League | , | |||
| Harry Walker | 1910 | 26 g. | Seward Statesmen | Nebraska State League | , | ||
| Mysterious Walker | walker004fre | 1910 | 6/28 | Cincinnati | National League | Cincinnati, OH | |
| Mysterious Walker | walker004fre | 1910 | San Francisco Seals | Pacific Coast League | , | ||
| Scott Walker | 1910 | 144 g. | Atlanta Crackers | Southern Association | , | ||
| James Wall | 1910 | 108 g. | Hutchinson Salt Packers | Kansas State League | , | ||
| James Wall | 1910 | 108 g. | Hutchinson Salt Packers | Kansas State League | , | ||
| A. C. Wallace | 1910 | 77 g. | Rochester Roosters | Minnesota-Wisconsin League | , | ||
| Arthur Wallace | wallac001art | 1910 | 113 g. | Richmond Colts | Virginia League | , | |
| Red Waller | waller001joh | 1910 | 34 g. | Bridgeport Orators | Connecticut State League | , | |
| Andrew Walsh | 1910 | 51 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | ||
| Andrew Walsh | 1910 | Jacksonville Jacks | Northern Association | , | |||
| Bulger Walsh | 1910 | 42 g. | Victoria Rosebuds | Southwest Texas League | , | ||
| Jimmy Walsh | walsh-004mic | 1910 | 4/25- | 88 g. | Philadelphia | National League | Philadelphia, PA |
| Joe Walsh | walsh-002jos | 1910 | 7/7- 10/8? | New York | American League | New York, NY | |
| John Walsh | 1910 | Maryville Comets | Missouri-Iowa-Nebraska-Kansas League | , | |||
| John Walsh | 1910 | Waco Navigators | Texas League | , | |||
| John Walsh | 1910 | Oklahoma City Indians | Texas League | , | |||
| Joseph Walsh | walsh-007jos | 1910 | 57 g. | Rocky Mount Railroaders | Eastern Carolina League | , | |
| Martin Walsh | 1910 | Richmond Colts | Virginia League | , | |||
| Martin Walsh | 1910 | 34 g. | Norfolk Tars | Virginia League | , | ||
| Amos Walters | 1910 | Douglas | Copper League | , | |||
| Daniel Walters | walter003d-- | 1910 | 35 g. | Greensboro Champs | Carolina Association | , | |
| Herman Walters | 1910 | Clarinda Antelopes | Missouri-Iowa-Nebraska-Kansas League | , | |||
| Lew Walters | walter001lew | 1910 | St. Joseph Drummers | Western League | , | ||
| Roxey Walters | walter001lou | 1910 | Regina Bone Pilers | Western Canada League | , | ||
| Roxey Walters | walter001lou | 1910 | Edmonton Eskimos | Western Canada League | , | ||
| Roxey Walters | walter001lou | 1910 | Clarinda Antelopes | Missouri-Iowa-Nebraska-Kansas League | , | ||
| Jack Wanner | wanner001cla | 1910 | 136 g. | Memphis Turtles | Southern Association | , | |
| Joe Ward | ward--001jos | 1910 | - 7/7 | 48 g. | Philadelphia | National League | Philadelphia, PA |
| Hardy Ware | 1910 | 11 g. | Winchester Hustlers | Blue Grass League | , | ||
| Hardy Ware | 1910 | Shelbyville/Maysville Rivermen | Blue Grass League | , | |||
| Jack Warhop | warhop001joh | 1910 | 37 g. | New York | American League | New York, NY | |
| Henry Waring | 1910 | 61 g. | Los Angeles Angels | Pacific Coast League | , | ||
| Homer Warner | warner001hom | 1910 | 39 g. | Lansing Senators | Southern Michigan League | , | |
| James Warner | 1910 | 34 g. | Adrian Yeggs | Southern Michigan League | , | ||
| William Warren | 1910 | 80 g. | Oshkosh Indians | Wisconsin-Illinois League | , | ||
| Mum Warrender | warren002fra | 1910 | 13 g. | Kalamazoo Kazoos | Southern Michigan League | , | |
| Mum Warrender | warren002fra | 1910 | 126 g. | East Liverpool Potters | Ohio-Pennsylvania League | , | |
| Buck Washer | washer001wil | 1910 | Billings MT | , | |||
| Wassgatt/ett | 1910 | Aberdeen SD | Independent | , | |||
| William Wasson | 1910 | U, of Colorado | College | , | |||
| William Waterman | waterm001wil | 1910 | 115 g. | New Britain Perfectos | Connecticut State League | , | |
| Waters | 1910 | 34 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | ||
| Clyde Waters | 1910 | New Haven Prairie Hens | Connecticut State League | , | |||
| Clyde Waters | 1910 | Holyoke Papermakers | Connecticut State League | , | |||
| William Waters | 1910 | Fresno Tigers | California State League | , | |||
| Julius Watson | watson001jul | 1910 | 137 g. | Mobile Sea Gulls | Southern Association | , | |
| Charles Weatherford | 1910 | 37 g. | Fort Worth Panthers | Texas League | , | ||
| Howard Weaver | 1910 | 125 g. | Fall River Indians | New England League | , | ||
| Julius Weaver | 1910 | 50 g. | Clinton Champs | Illinois-Missouri League | , | ||
| A. G. Weber | 1910 | 82 g. | Great Bend Millers | Kansas State League | , | ||
| Ed Weber | 1910 | 74 g. | Columbia Gamecocks | South Atlantic League | , | ||
| George Weeder | 1910 | 45 g. | Jackson Convicts | Southern Michigan League | , | ||
| Fred Weeks | weeks-001fre | 1910 | 96 g. | Williamsport Millionaires | Tri-State League | , | |
| Genser Weidensaul | weiden001yen | 1910 | 152 g. | Lincoln Railsplitters | Western League | , | |
| Curt Weigand | weigan001cur | 1910 | York White Roses | Tri-State League | , | ||
| Jake Weimer | weimer001jac | 1910 | Joliet-Standards | Independent | , | ||
| John Weimer | 1910 | 135 g. | New Orleans Pelicans | Southern Association | , | ||
| Henry Weirich | 1910 | 83 g. | Cadillac Chiefs | Michigan State League | , | ||
| Cecil Weisenberger | weisen001cec | 1910 | 59 g. | Beardstown/Jacksonville Jacks | Illinois-Missouri League | , | |
| Cecil Weisenberger | weisen001cec | 1910 | 25 g. | Galesburg Pavers | Central Association | , | |
| Charles Weisner | weisne002cha | 1910 | 110 g. | Lyons Lions | Kansas State League | , | |
| Harry Welch | welch-002har | 1910 | 106 g. | Omaha Rourkes | Western League | , | |
| Harry Welch | welch-001har | 1910 | 102 g. | Sioux City Packers | Western League | , | |
| Abe Welcher | 1910 | 31 g. | Portsmouth Truckers/Petersburg Goobers | Virginia League | , | ||
| Harry Welcher | 1910 | 105 g. | McKeesport Tubers | Ohio-Pennsylvania League | , | ||
| Robert Wells | 1910 | 106 g. | South Bend Bronchos | Central League | , | ||
| Calvin Wenger | 1910 | 89 g. | Cadillac Chiefs | Michigan State League | , | ||
| Walter Wentz | 1910 | 316 ab | Clay Center Cubs | Central Kansas League | , | ||
| Perry Werden | werden001per | 1910 | Werden’s All Stars | Semi-professional | , | ||
| Frank Wessel | wessel002fra | 1910 | 41 g. | Saginaw Wa-was | Southern Michigan League | , | |
| Bert West | 1910 | 29 g. | Macomb Potters | Illinois-Missouri League | , | ||
| Hi West | west--003jam | 1910 | Toledo Mud Hens | American Association | , | ||
| William West | 1910 | 84 g. | McKeesport Tubers | Ohio-Pennsylvania League | , | ||
| Fred Westervelt | 1910 | Umpire | Virginia League | , | |||
| George Westervelt | 1910 | Umpire | Texas League | , | |||
| James Westlake | westla001jam | 1910 | 59 g. | Wilson Tobacconists | Eastern Carolina League | , | |
| Jimmy Whalen | whalen003wil | 1910 | 50 g. | Sacramento Sacts | Pacific Coast League | , | |
| Zack Wheat | wheat-001zac | 1910 | 156 g. | Brooklyn | National League | Brooklyn, NY | |
| Ed Wheeler | wheele003edw | 1910 | 141 g. | South Bend Bronchos | Central League | , | |
| Ray Whisman | 1910 | 37 g. | Medicine Hat Mad Hatters/Saskatoon Berrypickers | Western Canada League | , | ||
| John Whitaker | whitak001j-- | 1910 | 122 g. | Richmond Pioneers | Blue Grass League | , | |
| White | 1910 | 22 g. | Newark Newks | Ohio State League | , | ||
| Burdette White | 1910 | Burlington Pathfinders | Central Association | , | |||
| David White | white-004dav | 1910 | 144 g. | Oklahoma City Indians | Texas League | , | |
| Jack White | white-012joh | 1910 | 148 g. | Buffalo Bisons | Eastern League | , | |
| John White | 1910 | 97 g. | Auburn Athletics | Missouri-Iowa-Nebraska-Kansas League | , | ||
| William White | 1910 | 57 g. | Edmonton Eskimos | Western Canada League | , | ||
| Roy Whiteside | 1910 | Joslin | Independent | , | |||
| Roy Whiteside | 1910 | Illini | Independent | , | |||
| Merle Whitney | whitne001mer | 1910 | 55 g. | York White Roses | Tri-State League | , | |
| Merle Whitney | whitne001mer | 1910 | Memphis Turtles | Southern Association | , | ||
| Merle Whitney | whitne001mer | 1910 | Atlanta Crackers | Southern Association | , | ||
| John Wickenhofer | 1910 | 22 g. | Houston Buffaloes | Texas League | , | ||
| Al Wickland | wickla001alb | 1910 | +8/27+ | Chic.-Logan Sq. | Independent | , | |
| Percy Wilder | wilder001per | 1910 | Mobile Sea Gulls | Southern Association | , | ||
| Percy Wilder | wilder001per | 1910 | 32 g. | Augusta Tourists | South Atlantic League | , | |
| Frederick Wilhelm | wilhel001fre | 1910 | 43 g. | Canton Deubers | Ohio-Pennsylvania League | , | |
| Irvin Wilhelm | wilhel001irv | 1910 | 15 g. | Brooklyn | National League | Brooklyn, NY | |
| Joseph Wilkes | wilkes001jos | 1910 | 135 g. | Waterloo Boosters | Illinois-Indiana-Iowa League | , | |
| Ed Willett | willet002rob | 1910 | Detroit | American League | Detroit, MI | ||
| Rob Willett | 1910 | Vernon Tigers | Pacific Coast League | , | |||
| Clyde Williams | willia002s-- | 1910 | Des Moines Boosters | Western League | , | ||
| Dal Williams | willia001lev | 1910 | Decatur Commodores | Northern Association | , | ||
| Ed Williams | 1910 | 103 g. | Northampton Meadowlarks | Connecticut State League | , | ||
| James Williams | willia012jam | 1910 | 136 g. | Waco Navigators | Texas League | , | |
| Nick Williams | willia011ric | 1910 | 117 g. | San Francisco Seals | Pacific Coast League | , | |
| Otto Williams | willia001ott | 1910 | 133 g. | Indianapolis Indians | American Association | , | |
| Floyd Willis | 1910 | Enid Railroaders | Western Association | , | |||
| Otto Willis | 1910 | 5/9- | 15 g. | Winston-Salem Twins | Carolina Association | , | |
| Otto Willis | 1910 | Greenville Spinners | Carolina Association | , | |||
| Ralph Willis | willis001ral | 1910 | 40 g. | San Francisco Seals | Pacific Coast League | , | |
| John Willoughby | 1910 | Marion Diggers | Ohio State League | , | |||
| John Willoughby | 1910 | Lima Cigarmakers | Ohio State League | , | |||
| Carter Wilson | 1910 | 31 g. | Winnipeg Maroons | Western Canada League | , | ||
| Christy Wilson | wilson003chr | 1910 | 16 g. | New Bedford Whalers | New England League | , | |
| Christy Wilson | wilson003chr | 1910 | 13 g. | Providence Grays | Eastern League | , | |
| Fred Wilson | wilson001bla | 1910 | 86 g. | Macomb Potters | Illinois-Missouri League | , | |
| Joseph Wilson | 1910 | 123 g. | New Castle Nocks | Ohio-Pennsylvania League | , | ||
| Lester Wilson | 1910 | 78 g. | Medicine Hat Mad Hatters/Saskatoon Berrypickers | Western Canada League | , | ||
| R. F. Wilson | 1910 | Abilene Reds | Central Kansas League | , | |||
| Will Wilson | 1910 | 21 g. | Greenville Spinners | Carolina Association | , | ||
| Lewis Wiltse | wiltse001lew | 1910 | 39 g. | Syracuse Stars | New York State League | , | |
| Frank Winchell | 1910 | 30 g. | Paris Bourbonites | Blue Grass League | , | ||
| Samuel Winchester | 1910 | g. ? | Indianapolis Indians | American Association | , | ||
| James Winger | 1910 | +6/29+ | Wellington KS | Independent | , | ||
| Dicey Winston | winsto006--- | 1910 | +8/11+ | Franklinton NC | Independent | , | |
| George Winter | winter001geo | 1910 | 36 g. | Montreal Royals | Eastern League | , | |
| Doc Wiseman | wisema001jul | 1910 | 142 g. | Nashville Volunteers | Southern Association | , | |
| Frederick Wohlleben | 1910 | 113 g. | Columbia Gamecocks | South Atlantic League | , | ||
| Ralph Woldring | 1910 | 58 g. | Holland Wooden Shoes | Michigan State League | , | ||
| Wolfe | 1910 | 18 g. | Northampton Meadowlarks | Connecticut State League | , | ||
| Orville Wolfe | 1910 | 115 g. | Danville Speakers | Illinois-Indiana-Iowa League | , | ||
| Orville Wolfe | 1910 | 20 g. | Davenport Prodigals | Illinois-Indiana-Iowa League | , | ||
| Roland Wolfe | wolfe-001rol | 1910 | 35 g. | St. Joseph Drummers | Western League | , | |
| Meldon Wolfgang | 1910 | 36 g. | Lowell Tigers | New England League | , | ||
| Wolters | 1910 | 27 g. | McKeesport Tubers | Ohio-Pennsylvania League | , | ||
| William Wolverton | 1910 | 31 g. | Burlington Pathfinders | Central Association | , | ||
| Louis Womble | womble001lou | 1910 | 34 g. | Shelbyville/Maysville Rivermen | Blue Grass League | , | |
| Bob Wood | wood--005rob | 1910 | 33 g. | Spartanburg Spartans | Carolina Association | , | |
| Guy Woodruff | woodru001guy | 1910 | 27 g. | Akron Champs | Ohio-Pennsylvania League | , | |
| Sam Woodruff | woodru001orv | 1910 | -7/17 | 21 g. | Cincinnati | National League | Cincinnati, OH |
| E. L. Woods | 1910 | 15 g. | Shelbyville/Maysville Rivermen | Blue Grass League | , | ||
| Lewis Woods | woods-001lew | 1910 | 76 ab | Ellsworth Blues | Central Kansas League | , | |
| Clyde Woolen | 1910 | 100 g. | Lyons Lions | Kansas State League | , | ||
| Elijah Wooley | wooley001eli | 1910 | Topeka Jayhawks | Western League | , | ||
| Clarence Workman | 1910 | MedColofCharlesCollege | , | ||||
| Clarence Workman | 1910 | 82 g. | Greenville Spinners | Carolina Association | , | ||
| Ralph Works | works-002ral | 1910 | 18 g. | Detroit | American League | Detroit, MI | |
| Robert Worman | 1910 | 36 g. | Duluth White Sox | Minnesota-Wisconsin League | , | ||
| Harry Wormwood | 1910 | 66 g. | Fall River Indians | New England League | , | ||
| John Wratten | wratte001irv | 1910 | 71 g. | Columbus Senators | American Association | , | |
| Samuel Wray | 1910 | Denison TX | Independent | , | |||
| Forrest Wright | wright001for | 1910 | Shelbyville/Maysville Rivermen | Blue Grass League | , | ||
| Forrest Wright | wright001for | 1910 | Richmond Pioneers | Blue Grass League | , | ||
| J. W. Wright | 1910 | 27 g. | Kearney Kapitalists | Nebraska State League | , | ||
| Lucky Wright | wright007wil | 1910 | preseason? | El Reno Packers | Western Association | , | |
| Lucky Wright | wright007wil | 1910 | Beeville Orange Growers | Southwest Texas League | , | ||
| Red Wright | wright001jos | 1910 | Portland Beavers | Pacific Coast League | , | ||
| Samuel Wright | 1910 | 51 g. | Topeka Jayhawks | Western League | , | ||
| Samuel Wright | 1910 | Wichita Jobbers | Western League | , | |||
| William Wynne | wynne-001wil | 1910 | 99 g. | Spartanburg Spartans | Carolina Association | , | |
| Hogan Yancey | yancey001hog | 1910 | 90 g. | Lexington Colts | Blue Grass League | , | |
| George Yantz | 1910 | 110 g. | San Antonio Bronchos | Texas League | , | ||
| Bob Yates | 1910 | no g. | St. Louis | National League | St. Louis, MO | ||
| Bob Yates | 1910 | 22 g. | Dallas Giants | Texas League | , | ||
| Bob Yates | 1910-11 | Swarthmore Col | College | , | |||
| Steve Yerkes | yerkes001ste | 1910 | 141 g. | Chattanooga Lookouts | Southern Association | , | |
| Earl Yingling | 1910 | 53 g. | Toledo Mud Hens | American Association | , | ||
| Herbert Yount | yount-001hen | 1910 | 18 g. | Lowell Tigers | New England League | , | |
| George Zackert | 1910 | 36 g. | Seattle Giants | Northwestern League | , | ||
| Jack Zalusky | zalusk001joh | 1910 | Wilkes-Barre Barons | New York State League | , | ||
| Jack Zalusky | zalusk001joh | 1910 | 16 g. | La Crosse Outcasts | Minnesota-Wisconsin League | , | |
| Gus Zeimer | zeimer001gus | 1910 | 126 g. | Troy Trojans | New York State League | , | |
| John Zeller | zeller001j-- | 1910-12 | Springfield | Connecticut League | , | ||
| William Zimmerman | 1910 | Clinton Champs | Illinois-Missouri League | , | |||
| William Zimmerman | 1910 | Utica Utes | New York State League | , | |||
| Bill Zink | zink--001wil | 1910 | 111 g. | Hutchinson Salt Packers | Kansas State League | , | |
| Guy Zinn | 1910 | 43 g. | Memphis Turtles | Southern Association | , | ||
| Guy Zinn | 1910 | 19 g. | Toledo Mud Hens | American Association | , | ||
| Guy Zinn | 1910 | 71 g. | Macon Peaches | South Atlantic League | , | ||
| Ed Zmich | zmich-001edw | 1910 | 39 g. | Marion Diggers | Ohio State League | , | |
| Ed Zmich | zmich-001edw | 1910 | 7/23- | 9 g. | St. Louis | National League | St. Louis, MO |
| Harry Zollers | zoelle001har | 1910 | +6/26+ | Binghamton Bingoes | New York State League | , | |
| Earl Zook | zook--001ear | 1910 | 28 g. | Traverse City | Western Michigan | , | |
| August Zurlage | zurlag001a-- | 1910 | +6/16+ | Charleston Senators | Virginia Valley League | , | |
| Dutch Zwilling | zwilli001edw | 1910 | 77 g. | Battle Creek Crickets | Southern Michigan League | , | |
| Dutch Zwilling | zwilli001edw | 1910 | 27 g. | Chicago | American League | Chicago, IL |