Transactions listed are from November 1 of previous year to April 1 of the following year.
The Pittsburgh Pirates traded Kitty Bransfield, Otto Krueger and Moose McCormick to the Philadelphia Phillies for Del Howard.
The Philadelphia Phillies traded Chick Fraser and Harry Wolverton to the Boston Beaneaters for Togie Pittinger.
The St. Louis Cardinals purchased John Warner from the New York Giants.
The Boston Americans traded George Stone and cash to the St. Louis Browns for Jesse Burkett.
Toledo (American Association) purchased Lou Fiene from the Chicago White Sox.
Kid Nichols sent from Kansas City (Western) to the St. Louis Cardinals in an unknown transaction.
The New York Giants purchased Sammy Strang from the Brooklyn Superbas.
The Cincinnati Reds purchased Shad Barry from the Chicago Cubs.
The St. Louis Cardinals purchased Win Kellum from the Cincinnati Reds.
Columbus (American Association) traded Fred Abbott to the Philadelphia Phillies for Rudy Hulswitt.
The Pittsburgh Pirates traded Ed Phelps to the Cincinnati Reds for Heinie Peitz.
The Chicago White Sox traded Branch Rickey to the St. Louis Browns for . The St. Louis Browns sent Frank Roth (June, 1905) to the Chicago White Sox to complete the trade.
The Washington Senators purchased Mike Heydon from the Chicago White Sox. (Date given is approximate. Exact date is uncertain.)
Shreveport (Southern Association) purchased Tom Fisher from the Boston Beaneaters.
The Washington Senators selected Harry Cassady off waivers from the Pittsburgh Pirates. (Date given is approximate. Exact date is uncertain.)
Minneapolis (American Association) purchased Davy Jones from the Chicago Cubs.
The Philadelphia Phillies purchased Mike Kahoe from the St. Louis Browns.
The Boston Beaneaters released Ed McNichol.
The New York Giants loaned Bob Hall to the Brooklyn Superbas.
The Washington Senators released Boileryard Clarke.
The New York Giants signed Boileryard Clarke as a free agent.
The Chicago Cubs signed Ed Reulbach as a free agent.
The St. Louis Cardinals purchased Harry Arndt from Coatsville (Tri-State). (Date given is approximate. Exact date is uncertain.)
The Boston Americans released Candy LaChance.
The Boston Beaneaters released Frank Hershey.
The Detroit Tigers selected Tom Doran off waivers from the Boston Americans.
The St. Louis Browns released Dick Padden.
The Boston Beaneaters released George Barclay.
The Washington Senators selected John Anderson off waivers from the New York Highlanders.
The Boston Beaneaters purchased Cozy Dolan from the Cincinnati Reds.
The New York Highlanders signed Charlie Fallon as an amateur free agent.
The Chicago Cubs purchased Hans Lobert from Des Moines (Western).
The Brooklyn Superbas purchased Jim Pastorius from Albany (New York State).
The Pittsburgh Pirates purchased George Gibson from Montreal (Eastern).
The St. Louis Cardinals traded Dave Brain to the Pittsburgh Pirates for George McBride.
The Washington Senators purchased Charlie Hickman from the Detroit Tigers.
The New York Highlanders signed Jack Doyle as a free agent.
The Philadelphia Athletics loaned Doc Powers to the New York Highlanders.
The Philadelphia Phillies selected Kid Nichols off waivers from the St. Louis Cardinals.
Toledo (American Association) purchased Dave Zearfoss from the St. Louis Cardinals.
Toledo (American Association) purchased Josh Clarke from the St. Louis Cardinals.
The New York Highlanders signed Fred Curtis as a free agent.
Rochester (Eastern) purchased Bill Clancy from the Pittsburgh Pirates.
The Cincinnati Reds purchased Gabby Street from the Boston Beaneaters.
The Brooklyn Superbas drafted John Butler from Kansas City (American Association) in the 1905 rule 5 draft.
The New York Highlanders purchased Walter Clarkson from Jersey City (Eastern). (Date given is approximate. Exact date is uncertain.)
The Cincinnati Reds purchased Gus Dorner from Columbus (American Association).
Louisville (American Association) traded George Ferguson to the New York Giants for . The New York Giants sent Claude Elliott (April, 1906) to Louisville (American Association) to complete the trade. (Date given is approximate. Exact date is uncertain.)
The Boston Americans purchased John Godwin from Bloomington (Three-I) for $750.
The Cincinnati Reds purchased Bill Hinchman from Wilkes-Barre (Eastern). (Date given is approximate. Exact date is uncertain.)
The Boston Americans purchased Ed Hughes from Davenport (Three-I).
The New York Highlanders drafted Tom Hughes from Topeka (Western Association) in the 1905 rule 5 draft.
The Brooklyn Superbas purchased John Hummel from Holyoke (Connecticut State).
The Brooklyn Superbas purchased Tim Jordan from Baltimore (Eastern). (Date given is approximate. Exact date is uncertain.)
The New York Giants purchased Doc Marshall from Minneapolis (American Association). (Date given is approximate. Exact date is uncertain.)
The Chicago Cubs purchased Fred Osborn from Canton (Central) for $2,000. (Date given is approximate. Exact date is uncertain.)
The Chicago Cubs purchased Jack Pfiester from Omaha (Western). (Date given is approximate. Exact date is uncertain.)
The Brooklyn Superbas purchased Lew Richie from Holyoke (Connecticut State).
The Cleveland Naps loaned Nig Clarke to the Detroit Tigers.
The Cincinnati Reds released Noodles Hahn.
The Detroit Tigers released Walt Justis.
The Pittsburgh Pirates purchased Ed Kinsella from Bloomington (Three-I).
The Detroit Tigers purchased John Warner from the St. Louis Cardinals for $1,500.
The Detroit Tigers purchased George Disch from Marshalltown (Iowa State).
The Detroit Tigers purchased John Eubank from Fort Dodge (Iowa State).
The Boston Americans purchased Joe Harris from Fall River (New England).
The Cleveland Naps released Eddie Grant.
Doc Powers returned to the Philadelphia Athletics by the New York Highlanders as part of earlier loan.
The New York Highlanders purchased George Moriarty from Toledo (American Association).
The Boston Americans purchased Pop Rising from New London (Connecticut State) for $1,200.
Nig Clarke returned to the Cleveland Naps by the Detroit Tigers as part of earlier loan.
The New York Highlanders signed Wilbur Good as a free agent.
The Chicago White Sox purchased Lou Fiene from Toledo (American Association).
The Washington Senators purchased Cy Falkenberg from Toronto (Eastern).
The New York Highlanders purchased Ed Hahn from New Orleans (Southern Association). (Date given is approximate. Exact date is uncertain.)
The New York Highlanders purchased Bobby Keefe from Tacoma (PCL). (Date given is approximate. Exact date is uncertain.)
The New York Highlanders purchased Ira Thomas from Providence (Eastern). (Date given is approximate. Exact date is uncertain.)
The New York Highlanders purchased Frank Delahanty from Birmingham (Southern Association).
The Philadelphia Athletics purchased Jimmy Dygert from New Orleans (Southern Association).
The Detroit Tigers purchased Ty Cobb from Augusta (South Atlantic). (Date given is approximate. Exact date is uncertain.)
The Cleveland Naps released Herbert Jackson. (Date given is approximate. Exact date is uncertain.)
The Cincinnati Reds released Ernie Baker.
The New York Highlanders purchased Frank LaPorte from Buffalo (Eastern). (Date given is approximate. Exact date is uncertain.)
The New York Highlanders purchased Louis Leroy from Montreal (Eastern). (Date given is approximate. Exact date is uncertain.)
The Boston Beaneaters released Dick Harley.
The Chicago White Sox purchased George Rohe from New Orleans (Southern Association).
The Chicago White Sox purchased Rube Vinson from the Cleveland Naps.
The St. Louis Browns purchased Pete O'Brien from St Paul (American Association).
The Cleveland Naps purchased Jap Barbeau from Columbus (American Association).
Jim Cockman sent from Newark (Eastern) to the New York Highlanders in an unknown transaction.
Newark (Eastern) loaned Joe Connor to the New York Highlanders. (Date given is approximate. Exact date is uncertain.)
Paterson (Hudson River) loaned Phil Cooney to the New York Highlanders. (Date given is approximate. Exact date is uncertain.)
The St. Louis Browns purchased Roy Hartzell from Denver (Western).
The New York Highlanders purchased Joe McCarthy from Poughkeepsie (Hudson River). (Date given is approximate. Exact date is uncertain.)
Previous purchase of Lew Richie by the Brooklyn Superbas from Holyoke (Connecticut State) voided and player returned. (Date given is approximate. Exact date is uncertain.)
The Cleveland Naps signed Howard Wakefield as a free agent.
The Cleveland Naps purchased Hi West from Burlington (Iowa State).
The Cleveland Naps signed Emil Leber as a free agent.
The Detroit Tigers released Duff Cooley.
The St. Louis Browns purchased Jack Powell from the New York Highlanders.
Fred Jacklitsch sent from Providence (Eastern) to the New York Highlanders in an unknown transaction. (Date given is approximate. Exact date is uncertain.)
The Boston Beaneaters signed Allie Strobel as an amateur free agent.
The Philadelphia Athletics drafted Jack Hannifin from Norwich (Connecticut State) in the 1905 rule 5 draft.
The Chicago Cubs drafted Fred Beebe from Oshkosh (Wisconsin State) in the 1905 rule 5 draft.
The Philadelphia Athletics drafted Rube Oldring from Montgomery (Southern Association) in the 1905 rule 5 draft. (Date given is approximate. Exact date is uncertain.)
The Detroit Tigers drafted Fred Payne from Rochester (Eastern) in the 1905 rule 5 draft.
Toledo (American Association) purchased Otto Krueger from the Philadelphia Phillies. (Date given is approximate. Exact date is uncertain.)
The Cincinnati Reds traded Jimmy Sebring and Harry Steinfeldt to the Chicago Cubs for Jake Weimer.
The St. Louis Cardinals drafted Pug Bennett from Seattle (PCL) in the 1905 rule 5 draft.
The Boston Americans signed Ralph Glaze as a free agent.
The New York Highlanders signed Noodles Hahn as a free agent.
Bob Hall returned to the New York Giants by the Brooklyn Superbas as part of earlier loan.
The Cincinnati Reds drafted Art Kruger from Oakland (PCL) in the 1905 rule 5 draft.
The Pittsburgh Pirates signed Jim Nealon as a free agent.
The Pittsburgh Pirates drafted Tommy Sheehan from Tacoma (PCL) in the 1905 rule 5 draft.
The Cincinnati Reds purchased Charlie Carr from the Cleveland Naps.
The Washington Senators drafted Larry Schlafly from Portland (PCL) in the 1905 rule 5 draft.
Toledo (American Association) traded Sam Brown to the Boston Beaneaters for Rip Cannell.
The Philadelphia Athletics signed Jack Coombs as an amateur free agent.
The New York Giants signed Matty Fitzgerald as a free agent.
Toledo (American Association) purchased Ed Kinsella from the Pittsburgh Pirates.
The Brooklyn Superbas purchased Mike O'Neill from the St. Louis Cardinals for $5,000.
Rochester (Eastern) purchased Fred Raymer from the Boston Beaneaters.
The St. Louis Browns released Charlie Starr.
The Detroit Tigers traded Frank Kitson to the Washington Senators for Happy Townsend.
The Washington Senators traded Beany Jacobson to the St. Louis Browns for Willie Sudhoff.
The Boston Beaneaters traded Pat Moran to the Chicago Cubs for Jack O'Neill and Big Jeff Pfeffer.
The Chicago Cubs traded Buttons Briggs, Doc Casey, Billy Maloney, Jack McCarthy and $2,000 to the Brooklyn Superbas for Jimmy Sheckard.
The Pittsburgh Pirates traded Dave Brain, Del Howard and Vive Lindaman to the Boston Beaneaters for Vic Willis.
The Washington Senators purchased Lave Cross from the Philadelphia Athletics.
The Cleveland Naps traded Red Donahue to the Detroit Tigers for Happy Townsend.
The St. Louis Cardinals purchased Babe Adams from Parsons (Missouri Valley).
The Philadelphia Athletics signed Eddie Collins as a free agent.
Fred Jacklitsch sent from the New York Highlanders to York (Tri-State) in an unknown transaction.
The Detroit Tigers purchased Davy Jones from Minneapolis (American Association).
The St. Louis Browns purchased Lou Nordyke from Tacoma (PCL).
The Detroit Tigers purchased Boss Schmidt from Minneapolis (American Association).
The Detroit Tigers purchased Ed Siever from Minneapolis (American Association).
The St. Louis Cardinals signed Oscar Stanage as a free agent.
The Cincinnati Reds traded Al Bridwell to the Boston Beaneaters for Jim Delahanty. (Date given is approximate. Exact date is uncertain.)
The Cincinnati Reds purchased Hans Lobert from the Chicago Cubs. (Date given is approximate. Exact date is uncertain.)
Toledo (American Association) purchased Boileryard Clarke from the New York Giants.
The Boston Americans released Frank Owens.
San Francisco (PCL) purchased Gabby Street from the Cincinnati Reds.
St Paul (American Association) purchased Joe Sugden from the St. Louis Browns.
The Cleveland Naps loaned Howard Wakefield to the Washington Senators.
Harry Wolverton jumped from the Boston Beaneaters to Williamsport (Tri-State).
Wheeling (Central) traded Bull Smith to the Chicago Cubs for Charles Miller (minors) and Louis Schaub (minors).
Lew Richie of Holyoke (Connecticut State) granted free agency.
The St. Louis Cardinals purchased Ambrose Puttmann from the New York Highlanders.
The Philadelphia Phillies signed Lew Richie as a free agent. (Date given is approximate. Exact date is uncertain.)
The Boston Beaneaters purchased Roy Witherup from Akron (Ohio-Pennsylvania).