Transactions listed are from November 1 of previous year to April 1 of the following year.
Indianapolis (American Association) purchased Chet Chadbourne from the Boston Red Sox.
Indianapolis (American Association) purchased Ralph Glaze from the Boston Red Sox.
The Boston Red Sox signed Harry Hooper as a free agent.
The Philadelphia Athletics purchased Ira Thomas from the Detroit Tigers.
The St. Louis Browns traded Tubby Spencer and $5,000 to the Boston Red Sox for Lou Criger.
The St. Louis Cardinals traded Art Fromme and Ed Karger to the Cincinnati Reds for Admiral Schlei.
The St. Louis Cardinals traded Red Murray, Bugs Raymond and Admiral Schlei to the New York Giants for Roger Bresnahan.
The St. Louis Cardinals purchased Charlie Enwright from Sacramento (PCL).
The New York Giants purchased Art Fletcher from Dallas (Texas).
Minneapolis (American Association) purchased Warren Gill from the Pittsburgh Pirates for $2,500.
The Chicago White Sox purchased Jim Scott from Wichita (Western Association) for $2,000.
The Boston Doves selected Kirby White off waivers from the Chicago Cubs.
Minneapolis (American Association) purchased Irv Young from the Pittsburgh Pirates for $2,500.
The New York Highlanders purchased Joe Ward from Altoona (Tri-State).
The Chicago White Sox purchased Dave Altizer from the Cleveland Naps.
The Detroit Tigers purchased George Moriarty from the New York Highlanders.
The Chicago Cubs traded Tom Downey and Kid Durbin to the Cincinnati Reds for John Kane.
The Philadelphia Phillies selected Jack Hannifin off waivers from the Boston Doves.
Los Angeles (PCL) traded Rebel Oakes to the Cincinnati Reds for Tom Daley and Rube Ellis.
Baltimore (Eastern) purchased Big Jeff Pfeffer from the Boston Doves.
St Paul (American Association) purchased Tom Needham from the New York Giants for $1,000.
The Cincinnati Reds purchased Bill Moriarty from San Francisco (PCL).
Kansas City (American Association) purchased Patsy Flaherty from the Boston Doves.
The Cleveland Naps traded Charlie Chech, Jack Ryan and $12,500 to the Boston Red Sox for Cy Young.
The Chicago Cubs purchased George Browne from the Boston Doves.
The Chicago White Sox purchased Gavvy Cravath from the Boston Red Sox.
The Washington Senators purchased Wid Conroy from the New York Highlanders.
The Brooklyn Superbas purchased Doc Marshall from the Chicago Cubs.
The Pittsburgh Pirates purchased Mike Simon from the Boston Doves.
Oklahoma City (Texas) purchased Harley Young from the Boston Doves.
St Paul (American Association) traded Tom Needham to the Chicago Cubs for Fred Leise (minors).
Lawrence (New England) purchased Walt Thomas from the Boston Doves.
The Boston Doves purchased Jimmy Slagle from the Chicago Cubs.
The Philadelphia Athletics purchased Paddy Livingston from Indianapolis (American Association).
Baltimore (Eastern) purchased Jimmy Slagle from the Boston Doves.
The St. Louis Cardinals purchased Rudy Hulswitt from the Cincinnati Reds.
The Washington Senators traded Bill Burns to the Chicago White Sox for Nick Altrock, Gavvy Cravath and Jiggs Donahue.
The Cincinnati Reds purchased Roy Castleton from Atlanta (Southern Association).
The Cleveland Naps purchased Neal Ball from the New York Highlanders.
The Philadelphia Athletics selected Bob Ganley off waivers from the Washington Senators.
The Chicago Cubs purchased Pat Ragan from the Cincinnati Reds.
The Washington Senators selected George Browne off waivers from the Chicago Cubs.
The Cincinnati Reds selected Bill Chappelle off waivers from the Boston Doves.
The Pittsburgh Pirates traded Ward Miller and cash to the Cincinnati Reds for Kid Durbin.
The Boston Red Sox signed Ray Collins as a free agent.
The St. Louis Cardinals purchased Grover Lowdermilk from Decatur (Three-I). (Date given is approximate. Exact date is uncertain.)
Rochester (Eastern) purchased Bill Chappelle from the Cincinnati Reds.
The Philadelphia Phillies purchased Joe Ward from the New York Highlanders.
The Boston Doves purchased Chick Autry from the Cincinnati Reds.
St Paul (American Association) purchased Ed Karger from the Cincinnati Reds.
The Brooklyn Superbas selected Wally Clement off waivers from the Philadelphia Phillies.
The Boston Doves purchased Hosea Siner from Monmouth (Illinois-Missouri).
The St. Louis Cardinals purchased Bob Harmon from Shreveport (Texas) for $2,500.
The Pittsburgh Pirates released Roy Thomas.
The Boston Doves signed Roy Thomas as a free agent.
The Washington Senators purchased Jack Lelivelt from Reading (Tri-State).
The Boston Red Sox purchased William Matthews from Trenton (Tri-State).
The Boston Doves released Claude Ritchey.
The Brooklyn Superbas released Jimmy Sebring.
The Boston Red Sox purchased Larry Pape from Milwaukee (American Association). (Date given is approximate. Exact date is uncertain.)
The Boston Doves selected Forrest More off waivers from the St. Louis Cardinals.
The Cleveland Naps purchased Elmer Koestner from Los Angeles (PCL).
The Pittsburgh Pirates purchased Harry Camnitz from McKeesport (Ohio-Pennsylvania).
The Cleveland Naps purchased Vean Gregg from Spokane (Northwestern) for $4000 plus 2 players.
Providence (Eastern) traded Lena Blackburne to the Chicago White Sox for . The Chicago White Sox sent $6,500 (August 18, 1909), Mike Welday (August 18, 1909) and Jake Atz (February 18, 1910) to Providence (Eastern) to complete the trade.
The St. Louis Browns purchased Bill Killefer from Houston (Texas).
The St. Louis Browns purchased Chuck Rose from Houston (Texas).
The Chicago White Sox purchased Bobby Messenger from Fall River (New England).
The Detroit Tigers traded Bill Lelivelt and $2,800 to Mobile (Southern Association) for Frank Allen and George Suggs.
The Brooklyn Superbas purchased Leo Meyer from Anderson (Carolina Association).
The Brooklyn Superbas purchased Hy Myers from Connellsville (Pennsylvania-West Virginia).
The Cleveland Naps purchased Harry Otis from Goldsboro (Eastern Carolina) for $1,000.
The Brooklyn Superbas purchased Zack Wheat from Mobile (Southern Association) for $1,200.
The Philadelphia Phillies traded Buster Brown, Lew Richie and Dave Shean to the Boston Doves for Johnny Bates and Charlie Starr.
The Boston Doves purchased Charlie Starr from the Pittsburgh Pirates.
The Boston Red Sox purchased Fred Anderson from Wilson (Eastern Carolina) for $1,200.
The Boston Doves released Frank Bowerman.
The Boston Doves purchased Chick Evans from Hartford (Connecticut State).
The Boston Doves traded Tom McCarthy to Hartford (Connecticut State) for .
The Philadelphia Athletics purchased Tommy Atkins from Atlanta (Southern Association).
The Boston Red Sox purchased Hugh Bradley from Worcester (New England).
The Boston Red Sox traded Charlie Chech, Jack Ryan and cash to St Paul (American Association) for Charley Hall and Ed Karger.
The Boston Doves released Vive Lindaman.
The Cincinnati Reds purchased Clare Patterson from Guthrie (Western Association).
The St. Louis Cardinals purchased John Raleigh from Vernon (PCL).
The Pittsburgh Pirates purchased Vin Campbell from Aberdeen (Northwestern).
The Brooklyn Superbas purchased Eddie Dent from Winston-Salem (Carolina Association).
The Brooklyn Superbas purchased Elmer Knetzer from Lawrence (New England).
The Brooklyn Superbas purchased Harry Redmond from Winston-Salem (Carolina Association).
The Boston Red Sox purchased Frank Barberich from Providence (Eastern). (Date given is approximate. Exact date is uncertain.)
The Brooklyn Superbas purchased Cy Barger from Rochester (Eastern). (Date given is approximate. Exact date is uncertain.)
The Cincinnati Reds purchased Chet Carmichael from Cedar Rapids (Three-I). (Date given is approximate. Exact date is uncertain.)
The Cincinnati Reds purchased Tommy Clarke from Montreal (Eastern). (Date given is approximate. Exact date is uncertain.)
The St. Louis Browns purchased Ned Crompton from Lancaster (Tri-State). (Date given is approximate. Exact date is uncertain.)
The New York Giants purchased George Daly from Springfield (Three-I). (Date given is approximate. Exact date is uncertain.)
The New York Highlanders purchased Bert Daniels from Altoona (Tri-State). (Date given is approximate. Exact date is uncertain.)
The Cleveland Naps purchased Walt Doan from Roanoke (Virginia). (Date given is approximate. Exact date is uncertain.)
The Cincinnati Reds purchased Roy Ellam from Birmingham (Southern). (Date given is approximate. Exact date is uncertain.)
The Chicago White Sox purchased Chick Gandil from Sacramento (PCL).
The Boston Red Sox purchased Paul Howard from Lowell (New England). (Date given is approximate. Exact date is uncertain.)
The St. Louis Cardinals purchased Bert James from Shreveport (Texas). (Date given is approximate. Exact date is uncertain.)
The New York Highlanders purchased Otis Johnson from Portland (PCL) for $4,000. (Date given is approximate. Exact date is uncertain.)
The Chicago White Sox purchased Frank Lange from Des Moines (Western). (Date given is approximate. Exact date is uncertain.)
The Cincinnati Reds purchased Swat McCabe from New Britain (Connecticut State). (Date given is approximate. Exact date is uncertain.)
The Pittsburgh Pirates purchased Gene Moore from Dallas (Texas). (Date given is approximate. Exact date is uncertain.)
The Boston Red Sox purchased Hap Myers from Sacramento (PCL). (Date given is approximate. Exact date is uncertain.)
The Cleveland Naps purchased Duke Reilley from Lima (Ohio State). (Date given is approximate. Exact date is uncertain.)
The St. Louis Cardinals purchased Elmer Rieger from Shreveport (Texas). (Date given is approximate. Exact date is uncertain.)
The New York Highlanders purchased Roxey Roach from Lancaster (Tri-State) for $2,500. (Date given is approximate. Exact date is uncertain.)
The Washington Senators signed Jimmy Sebring as a free agent.
The Boston Doves purchased Al Shaw from Indianapolis (American Association). (Date given is approximate. Exact date is uncertain.)
The New York Highlanders purchased Joe Walsh from Rocky Mount (Eastern Carolina). (Date given is approximate. Exact date is uncertain.)
The New York Highlanders purchased Jack Wanner from Hartford (Connecticut State) for $5,000. (Date given is approximate. Exact date is uncertain.)
The Brooklyn Superbas purchased Tex Erwin from Rochester (Eastern).
The Detroit Tigers purchased Del Gainer from Grafton (Pennsylvania-West Virginia).
The Cincinnati Reds purchased Cozy Dolan from Rockford (Wisconsin-Illinois) for $2,000.
The New York Giants purchased Louis Drucke from Dallas (Texas).
The New York Highlanders purchased John Frill from Newark (Eastern) for $2,500.
The Boston Doves purchased Bill Rariden from Canton (Ohio-Pennsylvania).
Minneapolis (American Association) purchased Tom Hughes from the Washington Senators.
The New York Giants purchased Al Klawitter from Shreveport (Texas).
The Chicago Cubs purchased Fred Luderus from Freeport (Wisconsin-Illinois) for $2,200.
The Detroit Tigers purchased Hub Pernoll from Aberdeen (Northwestern) for $4,000.
The New York Highlanders purchased Eddie Tiemeyer from Altoona (Tri-State).
The Cincinnati Reds traded Frank Egan (minors) and $2,000 to Wilkes-Barre (New York State) for Mike Konnick.
The Washington Senators traded Jim Delahanty to the Detroit Tigers for Red Killefer and Germany Schaefer.
The Boston Doves purchased Gus Getz from McKeesport (Ohio-Pennsylvania).
The Cleveland Naps purchased Bob Higgins from Peoria (Three-I) for $2,500.
The Chicago White Sox purchased Irv Young from Minneapolis (American Association).
The Chicago White Sox purchased Shano Collins from Springfield (Connecticut State).
The St. Louis Browns purchased Red Fisher from Omaha (Western).
The St. Louis Browns purchased Ed Kinsella from Portland (PCL).
The Cleveland Naps traded Glenn Liebhardt to Columbus (American Association) for Art Kruger and Fred Link.
The Chicago White Sox purchased Willis Cole from Wichita (Western) for $2,500.
The Cincinnati Reds purchased Doc Johnston from Chattanooga (South Atlantic).
The Washington Senators purchased Jack Hardy from Akron (Ohio-Pennsylvania).
The Washington Senators purchased Bill Yohe from Shreveport (Texas).
The Chicago White Sox purchased Rollie Zeider from San Francisco (PCL) for $5500 plus 2 players to be named.
The St. Louis Cardinals purchased Frank Betcher from Greenville (Carolina Association).
The St. Louis Cardinals traded Bobby Byrne to the Pittsburgh Pirates for Jap Barbeau and Alan Storke.
The New York Highlanders purchased Dick Carroll from Akron (Ohio-Pennsylvania) for $2,500.
The Chicago Cubs purchased King Cole from Bay City (Southern Michigan).
The Boston Doves purchased Cliff Curtis from Milwaukee (American Association).
Utica (New York State) traded Jim Doyle to the Cincinnati Reds for Shanley (minors).
The St. Louis Cardinals purchased Rube Geyer from Columbus (American Association).
The St. Louis Browns traded Tom Jones to the Detroit Tigers for Claude Rossman.
Doc Reisling sent from York (Tri-State) to the Washington Senators in an unknown transaction.
The St. Louis Browns purchased Jack Gilligan from Vancouver (Northwestern) for $2,000.
The St. Louis Cardinals traded Chappy Charles to the Cincinnati Reds for Mike Mowrey.
The New York Giants purchased Elmer Zacher from New Haven (Connecticut State).
The Brooklyn Superbas purchased Red Downey from Oklahoma City (Texas).
The New York Highlanders purchased Tommy Madden from Utica (New York State).
The New York Highlanders purchased Fred Mitchell from Toronto (Eastern).
The Cleveland Naps purchased Harry Ables from San Antonio (Texas).
The Cleveland Naps purchased Willie Mitchell from San Antonio (Texas).
The Cleveland Naps purchased Dolly Stark from San Antonio (Texas).
The Cleveland Naps purchased Fred Winchell from San Antonio (Texas).
The Washington Senators released Cliff Blankenship.
The Washington Senators released Mike Kahoe.
The Brooklyn Superbas released Jim Pastorius.
The Pittsburgh Pirates drafted Red Faber from Dubuque (Three-I) in the 1909 rule 5 draft.
The Boston Red Sox drafted Duffy Lewis from Oakland (PCL) in the 1909 rule 5 draft.
The St. Louis Browns drafted Sled Allen from Enid (Western Association) in the 1909 rule 5 draft.
The Detroit Tigers drafted Frank Browning from San Francisco (PCL) in the 1909 rule 5 draft.
The Chicago Cubs drafted Al Carson from Portland (PCL) in the 1909 rule 5 draft.
The New York Highlanders drafted Les Channell from Fort Wayne (Central) in the 1909 rule 5 draft.
The Boston Doves drafted Bill Cooney from Haverhill (New England) in the 1909 rule 5 draft.
The Brooklyn Superbas drafted Jake Daubert from Memphis (Southern Association) in the 1909 rule 5 draft.
The Chicago Cubs drafted Bill Davidson from Lincoln (Western) in the 1909 rule 5 draft.
The Brooklyn Superbas drafted Rube Dessau from Baltimore (Eastern) in the 1909 rule 5 draft.
The New York Giants drafted Walt Dickson from Birmingham (Southern Association) in the 1909 rule 5 draft.
The Detroit Tigers drafted Eddie Foster from Jersey City (Eastern) in the 1909 rule 5 draft.
The St. Louis Cardinals drafted Arnold Hauser from Dubuque (Three-I) in the 1909 rule 5 draft.
The Philadelphia Phillies drafted Bert Humphries from Grand Rapids (Central) in the 1909 rule 5 draft.
The Detroit Tigers drafted Jay Kirke from Wilkes-Barre (New York State) in the 1909 rule 5 draft.
The St. Louis Browns drafted Ed Kusel from Saginaw (Southern Michigan) in the 1909 rule 5 draft.
The Chicago Cubs drafted Fred Liese from St Paul (American Association) in the 1909 rule 5 draft.
The St. Louis Browns drafted Bill McCorry from McKeesport (Ohio-Pennsylvania) in the 1909 rule 5 draft.
The Brooklyn Superbas drafted Otto Miller from Duluth (Minnesota-Wisconsin) in the 1909 rule 5 draft.
The Cleveland Naps drafted Milo Netzel from Bloomington (Three-I) in the 1909 rule 5 draft.
The Chicago Cubs drafted Big Jeff Pfeffer from Toronto (Eastern) in the 1909 rule 5 draft.
The St. Louis Cardinals drafted Charlie Pickett from Columbus (American Association) in the 1909 rule 5 draft.
The Brooklyn Superbas drafted Frank Schneiberg from Milwaukee (American Association) in the 1909 rule 5 draft.
The Pittsburgh Pirates drafted Bud Sharpe from Newark (Eastern) in the 1909 rule 5 draft.
The St. Louis Browns drafted Burt Shotton from Steubenville (Ohio-Pennsylvania) in the 1909 rule 5 draft.
The Detroit Tigers drafted Hack Simmons from Rochester (International) in the 1909 rule 5 draft.
The Chicago Cubs drafted Tony Smith from Sioux City (Western) in the 1909 rule 5 draft.
The St. Louis Browns drafted Phil Stremmel from Superior (Minnesota-Wisconsin) in the 1909 rule 5 draft.
The Philadelphia Phillies drafted Jimmy Walsh from South Bend (Central) in the 1909 rule 5 draft.
The Pittsburgh Pirates drafted Lefty Webb from Grand Rapids (Central) in the 1909 rule 5 draft.
The St. Louis Browns drafted Gus Williams from Monmouth (Illinois-Missouri) in the 1909 rule 5 draft.
The Washington Senators traded Charlie Smith to the Boston Red Sox for Doc Gessler.
The Boston Red Sox selected Jack Chesbro off waivers from the New York Highlanders.
The Boston Doves released Bill Dahlen.
The Brooklyn Superbas signed Bill Dahlen as a free agent.
The Cleveland Naps traded Wilbur Good to the Philadelphia Athletics for Simon Nicholls. (Date given is approximate. Exact date is uncertain.)
The Washington Senators purchased Kid Elberfeld from the New York Highlanders for $5,000.
The Pittsburgh Pirates purchased John Flynn from St Paul (American Association) for $4,000.
The St. Louis Browns traded Lou Criger to the New York Highlanders for Ray Demmitt and Joe Lake.
Rochester (International) purchased Andy O'Connor from the New York Highlanders.
Montreal (International) purchased Pete Wilson from the New York Highlanders.
Rochester (Eastern) purchased Walter Blair from the New York Highlanders for $1,500. (Date given is approximate. Exact date is uncertain.)
The New York Highlanders purchased Ray Fisher from Hartford (Connecticut State).
The New York Highlanders purchased Eddie Foster from the Detroit Tigers.
The Cleveland Naps signed Roger Peckinpaugh as an amateur free agent. (Date given is approximate. Exact date is uncertain.)
The St. Louis Browns selected Bill Abstein off waivers from the Pittsburgh Pirates.
The Boston Doves released Roy Thomas.
The New York Highlanders selected Harry Wolter off waivers from the Boston Red Sox for $1,500.
The Philadelphia Phillies traded Frank Corridon and Harry Coveleski to the Cincinnati Reds for Ad Brennan and Bob Ewing.
The Chicago Cubs traded Fred Liese and cash to the Boston Doves for Ginger Beaumont.
The St. Louis Cardinals traded Fred Beebe and Alan Storke to the Cincinnati Reds for Frank Corridon, Miller Huggins and Rebel Oakes.
The St. Louis Cardinals purchased Vic Willis from the Pittsburgh Pirates.
The New York Highlanders released Willie Keeler.
The Boston Doves purchased Doc Martel from Scranton (New York State).
Baltimore (Eastern) purchased Wilbur Good from the Philadelphia Athletics.