Transactions listed are from November 1 of previous year to April 1 of the following year.
The Cincinnati Redlegs signed Bob Thurman as a free agent.
The Washington Senators released Johnny Pesky.
The Chicago Cubs traded a player to be named later to the Cleveland Indians for a player to be named later and Sam Jones. The Chicago Cubs sent Ralph Kiner (November 16, 1954) to the Cleveland Indians to complete the trade. The Cleveland Indians sent $60,000 (November 16, 1954) and Gale Wade (November 30, 1954) to the Chicago Cubs to complete the trade.
The New York Yankees traded players to be named later, Harry Byrd, Jim McDonald, Willy Miranda, Hal Smith, Gus Triandos and Gene Woodling to the Baltimore Orioles for players to be named later, Billy Hunter, Don Larsen and Bob Turley. The New York Yankees sent Bill Miller (December 1, 1954), Kal Segrist (December 1, 1954), Don Leppert (December 1, 1954) and Ted Del Guercio (minors) (December 1, 1954) to the Baltimore Orioles to complete the trade. The Baltimore Orioles sent Mike Blyzka (December 1, 1954), Darrell Johnson (December 1, 1954), Jim Fridley (December 1, 1954) and Dick Kryhoski (December 1, 1954) to the New York Yankees to complete the trade.
The Chicago Cubs drafted Vicente Amor from Oakland (PCL) in the 1954 rule 5 draft.
The Kansas City Athletics drafted Cloyd Boyer from the St. Louis Cardinals in the 1954 rule 5 draft.
The Kansas City Athletics drafted Art Ceccarelli from the New York Yankees in the 1954 rule 5 draft.
The Pittsburgh Pirates drafted Roberto Clemente from the Brooklyn Dodgers in the 1954 rule 5 draft.
The Detroit Tigers drafted Ben Flowers from the Boston Red Sox in the 1954 rule 5 draft.
The Cincinnati Redlegs drafted Glen Gorbous from the Brooklyn Dodgers in the 1954 rule 5 draft.
The New York Giants drafted Mickey Grasso from the Cleveland Indians in the 1954 rule 5 draft.
The Chicago Cubs drafted Jim King from the St. Louis Cardinals in the 1954 rule 5 draft.
The Washington Senators drafted Bobby Kline from Toronto (International) in the 1954 rule 5 draft.
The Kansas City Athletics drafted Bob Spicer from the Chicago Cubs in the 1954 rule 5 draft.
The Boston Red Sox drafted Joe Trimble from the Pittsburgh Pirates in the 1954 rule 5 draft.
The Milwaukee Braves drafted Roberto Vargas from the Cleveland Indians in the 1954 rule 5 draft.
The Kansas City Athletics released Eddie Joost.
Seattle (PCL) drafted Bobby Balcena from the Baltimore Orioles in the 1954 minor league draft.
The Chicago Cubs drafted Buzz Clarkson from Dallas (Texas) in the 1954 minor league draft.
The Baltimore Orioles drafted Johnny Goryl from the Milwaukee Braves in the 1954 minor league draft.
The Pittsburgh Pirates drafted Cholly Naranjo from the Washington Senators in the 1954 minor league draft.
The St. Louis Cardinals drafted Charlie Peete from Portsmouth (Piedmont) in the 1954 minor league draft.
The St. Louis Cardinals drafted Benny Valenzuela from Bisbee-Douglas (Arizona-Texas) in the 1954 minor league draft.
Oklahoma City (Texas) drafted Gordie Windhorn from the New York Giants in the 1954 minor league draft.
The Pittsburgh Pirates drafted George Witt from the Brooklyn Dodgers in the 1954 minor league draft.
The Cincinnati Redlegs sent Saul Rogovin to the Baltimore Orioles as part of a conditional deal.
The St. Louis Cardinals traded Sal Yvars to the Detroit Tigers for Frank Carswell.
The Chicago White Sox purchased Don Ferrarese from Oakland (PCL).
The Chicago White Sox traded Matt Batts, Don Ferrarese, Don Johnson and Fred Marsh to the Baltimore Orioles for Jim Brideweser, Bob Chakales and Clint Courtney.
The Detroit Tigers traded Walt Dropo, Ted Gray and Bob Nieman to the Chicago White Sox for Leo Cristante, Ferris Fain and Jack Phillips.
The St. Louis Cardinals traded Ray Jablonski and Jerry Staley to the Cincinnati Redlegs for Frank Smith.
The Washington Senators purchased Bruce Edwards from the Chicago Cubs for $15,000.
The Baltimore Orioles traded Harry Schwegeman (minors), Johnny Jancse (minors) and $50,000 to the Brooklyn Dodgers for Billy Cox and Preacher Roe.
The Brooklyn Dodgers signed Sandy Koufax as an amateur free agent (bonus baby).
The Boston Red Sox traded Del Wilber to the New York Giants for Billy Klaus.
The Baltimore Orioles signed Johnny Pesky as a free agent.
The Baltimore Orioles purchased Charlie Maxwell from the Boston Red Sox.
The Detroit Tigers purchased Bob Schultz from the Pittsburgh Pirates.
The Washington Senators signed Bob Allison as an amateur free agent.
The Baltimore Orioles signed Jim Archer as a free agent.
The Baltimore Orioles signed Ray Barker as an amateur free agent.
The Cleveland Indians signed Gary Bell as an amateur free agent.
The Milwaukee Braves signed Bob Botz as an amateur free agent.
The Philadelphia Phillies purchased Ed Bouchee from Spokane (Western International).
The Baltimore Orioles signed Marv Breeding as an amateur free agent.
Marshall Bridges sent from the New York Giants to the Milwaukee Braves in an unknown transaction.
John Briggs sent from the Philadelphia Phillies to Sacramento (PCL) in an unknown transaction.
Ernie Broglio sent from the Cincinnati Redlegs to Stockton (California) in an unknown transaction.
The New York Yankees signed Jim Bronstad as an amateur free agent.
The Kansas City Athletics obtained George Brunet from Seminole (Sooner State) as part of a minor league working agreement.
The Pittsburgh Pirates signed Ellis Burton as an amateur free agent.
The Pittsburgh Pirates signed Jim Campbell as an amateur free agent.
The St. Louis Cardinals signed Duke Carmel as an amateur free agent.
The New York Giants signed Orlando Cepeda as an amateur free agent.
The Pittsburgh Pirates signed Joe Christopher as an amateur free agent.
The Washington Senators signed Webbo Clarke as a free agent.
The Boston Red Sox signed Lou Clinton as an amateur free agent.
The Washington Senators signed Choo Choo Coleman as an amateur free agent.
The Cincinnati Redlegs signed Cliff Cook as an amateur free agent.
Chuck Cottier sent from the Baltimore Orioles to New Iberia (Evangeline) in an unknown transaction.
The New York Giants signed Jim Davenport as an amateur free agent.
The Kansas City Athletics signed Bob Davis as an amateur free agent.
The Cleveland Indians signed Don Dillard as an amateur free agent.
The Washington Senators signed Dan Dobbek as an amateur free agent.
The Pittsburgh Pirates signed Jim Duffalo as an amateur free agent.
The Detroit Tigers signed Bob Dustal as an amateur free agent.
The Detroit Tigers signed Jack Feller as an amateur free agent.
The Pittsburgh Pirates signed Larry Foss as an amateur free agent.
The Chicago Cubs signed Dave Gerard as an amateur free agent.
The Boston Red Sox signed Don Gile as an amateur free agent.
Joe Ginsberg sent from the Cleveland Indians to San Diego (PCL) in an unknown transaction.
The Chicago Cubs signed John Goetz as an amateur free agent.
The Cincinnati Redlegs signed Jesse Gonder as an amateur free agent.
Howie Goss sent from Salinas (California) to the Pittsburgh Pirates in an unknown transaction.
The Philadelphia Phillies signed Dallas Green as an amateur free agent.
The Baltimore Orioles signed Lenny Green as an amateur free agent.
The Brooklyn Dodgers signed Connie Grob as a free agent.
The Detroit Tigers signed Joe Grzenda as an amateur free agent.
The Cleveland Indians signed Carroll Hardy as an amateur free agent.
The Cincinnati Redlegs obtained Clint Hartung from Havana (International) as part of a minor league working agreement.
The Cleveland Indians signed Wynn Hawkins as an amateur free agent.
Al Heist sent from the Baltimore Orioles to Sacramento (PCL) in an unknown transaction.
Ron Henry sent from Boise (Pioneer) to the Milwaukee Braves in an unknown transaction.
The Chicago Cubs signed Glen Hobbie as an amateur free agent.
The Brooklyn Dodgers signed Willard Hunter as an amateur free agent.
Hank Izquierdo sent from Winston-Salem (Carolina) to the Cleveland Indians in an unknown transaction.
The Pittsburgh Pirates signed Al Jackson as an amateur free agent.
Bob Johnson sent from Pauls Valley (Sooner State) to the Detroit Tigers in an unknown transaction.
Lou Johnson sent from Pampa (West Texas-New Mexico) to the Pittsburgh Pirates in an unknown transaction.
Bill Kennedy sent from the Boston Red Sox to Seattle (PCL) in an unknown transaction.
The Kansas City Athletics signed Evans Killeen as an amateur free agent.
The Chicago White Sox signed Jack Kralick as an amateur free agent.
The Boston Red Sox signed Bill Kunkel as an amateur free agent.
The Chicago White Sox signed Barry Latman as an amateur free agent.
The Milwaukee Braves signed Don Leppert as an amateur free agent.
The Cleveland Indians signed Carl Mathias as an amateur free agent.
The Chicago White Sox signed Jim McAnany as an amateur free agent.
The St. Louis Cardinals signed Jim McKnight as an amateur free agent.
Danny Morejon sent from Portsmouth (Piedmont) to the Cincinnati Redlegs in an unknown transaction.
The Detroit Tigers signed Bubba Morton as an amateur free agent.
The New York Giants obtained Red Murff from Dallas (Texas) as part of a minor league working agreement.
The Cincinnati Redlegs obtained Ray Noble from Havana (International) as part of a minor league working agreement.
The Milwaukee Braves signed Chi-Chi Olivo as an amateur free agent.
The Cincinnati Redlegs signed Diomedes Olivo as an amateur free agent.
The New York Giants signed Jose Pagan as an amateur free agent.
The Milwaukee Braves signed Ron Piche as an amateur free agent.
The Cleveland Indians signed Larry Raines as an amateur free agent.
The Milwaukee Braves signed Claude Raymond as an amateur free agent.
Marshall Renfroe sent from the Philadelphia Phillies to St Petersburg (Florida State) in an unknown transaction. (Date given is approximate. Exact date is uncertain.)
The Cincinnati Redlegs signed Duane Richards as an amateur free agent.
The St. Louis Cardinals signed Dick Ricketts as an amateur free agent.
The Baltimore Orioles signed Brooks Robinson as an amateur free agent.
The St. Louis Cardinals signed Bob Sadowski as an amateur free agent.
The Washington Senators signed Ted Sadowski as an amateur free agent.
The Cincinnati Redlegs obtained Raul Sanchez from Havana (International) as part of a minor league working agreement.
The Cincinnati Redlegs obtained Pat Scantlebury from Havana (International) as part of a minor league working agreement.
The St. Louis Cardinals signed Jimmie Schaffer as an amateur free agent.
Johnny Schaive sent from Decatur (Mississippi-Ohio Valley) to the Washington Senators in an unknown transaction.
Seattle (PCL) purchased Art Schult from the New York Yankees.
The Washington Senators signed Garland Shifflett as an amateur free agent.
The New York Yankees signed Bill Short as an amateur free agent.
The Brooklyn Dodgers signed Jack Smith as an amateur free agent.
The New York Giants signed Verle Tiefenthaler as an amateur free agent.
The Cincinnati Redlegs signed Felix Torres as an amateur free agent.
The St. Louis Cardinals signed Paul Toth as an amateur free agent.
Vito Valentinetti sent from the Chicago White Sox to Charleston (American Association) in an unknown transaction.
The Cleveland Indians signed Elder White as an amateur free agent.
The Pittsburgh Pirates signed Dave Wickersham as an amateur free agent.
The Boston Red Sox signed Ted Wills as an amateur free agent.
The St. Louis Cardinals released John Wyatt.
The Washington Senators released Dick Phillips.
The Chicago Cubs returned Ben Taylor to Beaumont (Texas) after expiration of minor league working agreement.
The Milwaukee Braves signed Dick Phillips as a free agent.
The Milwaukee Braves obtained Ben Taylor from Beaumont (Texas) as part of a minor league working agreement.
The Baltimore Orioles purchased Hoot Evers from the Detroit Tigers.
The Chicago White Sox signed Al Brazle as a free agent.
The St. Louis Cardinals traded Ben Wade and cash to the Pittsburgh Pirates for Paul LaPalme.
The Boston Red Sox released Mickey Owen.
Charleston (American Association) traded Bill Killinger (minors) and cash to the Detroit Tigers for Ron Northey.
The New York Giants purchased Wayne Terwilliger from the Washington Senators.
The Washington Senators released Connie Marrero.
The New York Yankees signed Tom Carroll as an amateur free agent (bonus baby).
The Washington Senators signed Vince Gonzales as a free agent.
The Chicago Cubs signed Don Kaiser as an amateur free agent (bonus baby).
The Chicago White Sox purchased Lloyd Merriman from the Cincinnati Redlegs.
The Philadelphia Phillies signed Peanuts Lowrey as a free agent.
The Philadelphia Phillies signed Jimmie Coker as an amateur free agent.
The Cincinnati Redlegs purchased Milt Smith from San Diego (PCL). (Date given is approximate. Exact date is uncertain.)
The Milwaukee Braves released Catfish Metkovich.
The New York Giants signed Willie McCovey as an amateur free agent.
The Baltimore Orioles traded Frank Kellert and cash to the Brooklyn Dodgers for Erv Palica.
The Philadelphia Phillies purchased Dave Cole from the Chicago Cubs.
The Boston Red Sox signed Eddie Joost as a free agent.
The Kansas City Athletics purchased Ewell Blackwell from the New York Yankees for $50,000.
The Philadelphia Phillies released Johnny Wyrostek.
The Chicago White Sox released Al Brazle.
The Boston Red Sox released Sid Hudson.
The Detroit Tigers purchased Harry Malmberg from the Cleveland Indians. (Date given is approximate. Exact date is uncertain.)
The Detroit Tigers selected Ron Samford off waivers from the New York Giants.
The Baltimore Orioles signed Jim Pyburn as an amateur free agent (bonus baby).
The Cleveland Indians purchased Matt Batts from the Baltimore Orioles.
The Cincinnati Redlegs purchased Bob Hooper from the Cleveland Indians.
The Baltimore Orioles purchased Jim Wilson from the Milwaukee Braves.
The Baltimore Orioles released Johnny Pesky.
The Chicago Cubs purchased Lloyd Merriman from the Chicago White Sox.
The Baltimore Orioles released Vern Stephens.
The Washington Senators released Vince Gonzales.
The St. Louis Cardinals released Vic Raschi.
The St. Louis Cardinals purchased George Spencer from the New York Giants.
The Kansas City Athletics signed Vic Raschi as a free agent.
San Diego (PCL) purchased Cal McLish from the Chicago Cubs.
The Kansas City Athletics purchased Lou Sleater from the New York Yankees.
The Kansas City Athletics released Ewell Blackwell.
The Philadelphia Phillies traded Smoky Burgess, Stan Palys and Steve Ridzik to the Cincinnati Redlegs for Glen Gorbous, Jim Greengrass and Andy Seminick.
The Philadelphia Phillies purchased Roy Smalley from the Milwaukee Braves.
Sacramento (PCL) purchased Harry Bright from the Detroit Tigers.
The Washington Senators traded Gus Keriazakos to the Kansas City Athletics for Al Sima. (Date given is approximate. Exact date is uncertain.)
The Chicago White Sox signed Vern Stephens as a free agent.
The Baltimore Orioles released Howie Fox.
The Philadelphia Phillies released Floyd Baker.
The Chicago White Sox released Phil Cavarretta.
The Detroit Tigers purchased Charlie Maxwell from the Baltimore Orioles.
The Chicago White Sox released Stan Jok.
The St. Louis Cardinals signed Stan Jok as a free agent.
The Cincinnati Redlegs purchased Hersh Freeman from the Boston Red Sox.
The Kansas City Athletics released John Mackinson. (Date given is approximate. Exact date is uncertain.)
The Kansas City Athletics traded Sonny Dixon and cash to the New York Yankees for Johnny Sain and Enos Slaughter.
Oakland (PCL) purchased Hal Brown from the Boston Red Sox.
The New York Giants released Mickey Grasso.
The Kansas City Athletics purchased Ray Herbert from the Detroit Tigers.
The Cleveland Indians released Hal Newhouser.
The Baltimore Orioles selected Art Schallock off waivers from the New York Yankees.
The Kansas City Athletics purchased Harry Simpson from the Cleveland Indians.
The Boston Red Sox returned Joe Trimble (earlier draft pick) to the Pittsburgh Pirates.
The St. Louis Cardinals signed John Mackinson as a free agent. (Date given is approximate. Exact date is uncertain.)
The Chicago White Sox signed Norm Cash as an amateur free agent.
The New York Giants purchased Sid Gordon from the Pittsburgh Pirates.
The Chicago White Sox released Ted Gray.
The Philadelphia Phillies selected Bob Kuzava off waivers from the Baltimore Orioles.
The St. Louis Cardinals signed Harry Walker as a free agent.
The Chicago Cubs signed Don Eaddy as an amateur free agent.
The Washington Senators signed Jerry Schoonmaker as an amateur free agent (bonus baby).
The Chicago White Sox purchased Bob Kennedy from the Baltimore Orioles.
The Kansas City Athletics signed Clete Boyer as an amateur free agent (bonus baby).
The Milwaukee Braves signed John Edelman as an amateur free agent (bonus baby).
The Chicago White Sox signed Deacon Jones as an amateur free agent.
The Detroit Tigers released Sal Yvars.
The Kansas City Athletics released Pete Suder.
The St. Louis Cardinals traded Del Rice to the Milwaukee Braves for Pete Whisenant.
The Cincinnati Redlegs signed Al Silvera as an amateur free agent (bonus baby).
The Baltimore Orioles signed Wayne Causey as an amateur free agent (bonus baby).
The Baltimore Orioles traded Les Moss to the Chicago White Sox for Harry Dorish.
The Philadelphia Phillies traded Dave Cole and cash to the Brooklyn Dodgers for Ron Negray.
The Washington Senators traded Jim Busby to the Chicago White Sox for Bob Chakales, Clint Courtney and Johnny Groth.
Seattle (PCL) purchased Lou Kretlow from the Baltimore Orioles.
The Cincinnati Redlegs traded a player to be named later and cash to the Brooklyn Dodgers for a player to be named later and Joe Black. The Cincinnati Redlegs sent Bob Borkowski (June 14, 1955) to the Brooklyn Dodgers to complete the trade.
The Detroit Tigers signed Jim Brady as an amateur free agent (bonus baby).
The Chicago White Sox signed Leroy Powell as an amateur free agent (bonus baby).
The Detroit Tigers signed Jim Small as an amateur free agent (bonus baby).
The Chicago Cubs purchased Owen Friend from the Boston Red Sox.
The Milwaukee Braves signed Bob Hartman as an amateur free agent.
The Philadelphia Phillies signed John Easton as an amateur free agent.
The Baltimore Orioles traded $15,000 to the Cleveland Indians for . Billy Cox refused to report to his new team. The Baltimore Orioles sent $15,000 (June 15, 1955) to the Cleveland Indians to complete the trade.
The Chicago White Sox selected Harry Byrd off waivers from the Baltimore Orioles.
The Cleveland Indians traded Billy Cox to the Baltimore Orioles for . Billy Cox refused to report to his new team. The Baltimore Orioles sent $15,000 (June 15, 1955) to the Cleveland Indians to complete the trade.
The Cleveland Indians signed Ted Gray as a free agent.
The Detroit Tigers purchased Earl Torgeson from the Philadelphia Phillies.
The Baltimore Orioles traded Billy Cox and Gene Woodling to the Cleveland Indians for Dave Pope and Wally Westlake. Billy Cox refused to report to his new team. The Baltimore Orioles sent $15,000 (June 15, 1955) to the Cleveland Indians to complete the trade.
The Boston Red Sox signed Jim Pagliaroni as an amateur free agent (bonus baby).
The Baltimore Orioles signed Tom Gastall as an amateur free agent (bonus baby).
The Baltimore Orioles signed Tex Nelson as an amateur free agent (bonus baby).
The Boston Red Sox signed Bill Monbouquette as an amateur free agent.
The Cincinnati Redlegs purchased Sam Mele from the Boston Red Sox.
The Chicago White Sox released Willard Marshall.
The Cleveland Indians traded Hank Majeski to the Baltimore Orioles for Bobby Young.
The Pittsburgh Pirates signed Paul Martin as an amateur free agent (bonus baby).
The Cincinnati Redlegs traded Clint Hartung and cash to Oakland (PCL) for Joe Brovia.
The Cleveland Indians released Ted Gray.
The New York Yankees signed Ted Gray as a free agent.
The Chicago Cubs signed Dave Stenhouse as an amateur free agent.
Portland (PCL) purchased Bob Alexander from the Baltimore Orioles.
Ossie Alvarez sent from Hobbs (Longhorn) to the Washington Senators in an unknown transaction. (Date given is approximate. Exact date is uncertain.)
Julio Navarro sent from Hannibal (Mississippi-Ohio Valley) to the New York Giants in an unknown transaction. (Date given is approximate. Exact date is uncertain.)
The Baltimore Orioles released Joe Coleman.
The Chicago White Sox released Vern Stephens.
The Baltimore Orioles selected Dave Philley off waivers from the Cleveland Indians.
The Cincinnati Redlegs purchased Matt Batts from the Cleveland Indians.
The Cleveland Indians signed Kenny Kuhn as an amateur free agent (bonus baby).
The Detroit Tigers released Ferris Fain.
The Detroit Tigers signed Joe Coleman as a free agent.
The Baltimore Orioles selected George Zuverink off waivers from the Detroit Tigers.
The Baltimore Orioles released Wally Westlake.
The Baltimore Orioles released Saul Rogovin.
The Philadelphia Phillies signed Saul Rogovin as a free agent.
The Baltimore Orioles purchased Hal Brown from Oakland (PCL).
The Cleveland Indians signed Ferris Fain as a free agent.
The Cleveland Indians traded Bill Wight to the Baltimore Orioles for Hoot Evers.
The Chicago White Sox selected Gil Coan off waivers from the Baltimore Orioles.
The Baltimore Orioles purchased Jim Dyck from the Cleveland Indians.
Charleston (American Association) traded Floyd Melliere (minors) and Ron Northey to the New York Giants for Guilford Dickens (minors).
The Kansas City Athletics released Johnny Sain.
The New York Yankees released Ted Gray.
The Baltimore Orioles released Eddie Waitkus.
The Chicago White Sox purchased Bobby Adams from the Cincinnati Redlegs.
The Baltimore Orioles signed Ted Gray as a free agent.
The Baltimore Orioles signed Gordie Sundin as an amateur free agent.
The New York Yankees traded Ed Lopat to the Baltimore Orioles for Jim McDonald.
The Philadelphia Phillies signed Eddie Waitkus as a free agent.
The Cleveland Indians selected Sal Maglie off waivers from the New York Giants.
The Baltimore Orioles released Hank Majeski.
The Chicago White Sox purchased Buddy Peterson from San Diego (PCL) for $25,000.
The Chicago Cubs signed George Altman as an amateur free agent.
The Chicago Cubs signed J.C. Hartman as an amateur free agent.
The St. Louis Cardinals signed Lindy McDaniel as an amateur free agent (bonus baby).
The St. Louis Cardinals purchased Al Gettel from Oakland (PCL).
The Philadelphia Phillies signed Fred Van Dusen as an amateur free agent (bonus baby).
The Chicago White Sox traded Gil Coan to the New York Giants for Ron Northey.
The Pittsburgh Pirates signed Red Swanson as an amateur free agent (bonus baby).
The New York Giants released Davey Williams.
The Kansas City Athletics traded Hal Bevan to the Cincinnati Redlegs for Ray Noble.
The New York Giants traded Red Murff to the Milwaukee Braves for . The Milwaukee Braves sent Murray Wall (December, 1955) to the New York Giants to complete the trade. (Date given is approximate. Exact date is uncertain.)
The Chicago White Sox purchased Al Papai from Oklahoma City (Texas).
San Diego (PCL) selected Bob Usher off waivers from the Chicago Cubs. (Date given is approximate. Exact date is uncertain.)
The Baltimore Orioles signed Roger Marquis as an amateur free agent.
The Milwaukee Braves purchased Joe Koppe from Shreveport (Texas).
The Detroit Tigers traded Ben Flowers to the St. Louis Cardinals for Bobby Tiefenauer.
The Cincinnati Redlegs obtained Bobby Balcena from Seattle (PCL) as part of a minor league working agreement.
The Kansas City Athletics purchased Lou Kretlow from Seattle (PCL) for $100,000.
The Baltimore Orioles signed Angelo Dagres as an amateur free agent.
The Kansas City Athletics purchased Glenn Cox from the Brooklyn Dodgers.
The Kansas City Athletics selected Tom Saffell off waivers from the Pittsburgh Pirates.
The New York Yankees selected Jerry Staley off waivers from the Cincinnati Redlegs.
The Kansas City Athletics signed Alex George as an amateur free agent.
The Baltimore Orioles released Ted Gray.
The Pittsburgh Pirates released Monty Basgall.
The Philadelphia Phillies purchased Bob Ross from the Washington Senators. (Date given is approximate. Exact date is uncertain.)
The Kansas City Athletics purchased Bill Bradford from San Francisco (PCL) for $75,000.
The Chicago Cubs traded players to be named later and cash to Sacramento (PCL) for players to be named later, John Briggs and Richie Myers. The Chicago Cubs sent Bubba Church (1956) and Joe Stanka (1956) to Sacramento (PCL) to complete the trade.
The Chicago Cubs purchased Pidge Browne from Shreveport (Texas).
The Philadelphia Phillies signed Mack Burk as an amateur free agent (bonus baby).
The St. Louis Cardinals purchased Eddie Kasko from Richmond (International).
The New York Yankees sent Al Pilarcik to the Kansas City Athletics as part of a conditional deal.
The Baltimore Orioles obtained Charlie Beamon from Oakland (PCL) as part of a minor league working agreement.
The Boston Red Sox released Eddie Joost.
The Philadelphia Phillies released Peanuts Lowrey.
The Chicago Cubs released Howie Pollet.
The Kansas City Athletics purchased Bob Kuzava from the Philadelphia Phillies.
The Kansas City Athletics purchased Rance Pless from the New York Giants for $35,000.
The Baltimore Orioles released Ed Lopat.
The Philadelphia Phillies released Eddie Waitkus.
The Chicago Cubs selected Frank Kellert off waivers from the Brooklyn Dodgers.
The Kansas City Athletics traded Marion Fricano and $60,000 to Toronto (International) for Jack Crimian.
The Detroit Tigers purchased Jim Proctor from Indianapolis (American Association).
The Cleveland Indians purchased Johnny Gray from the Kansas City Athletics. (Date given is approximate. Exact date is uncertain.)
The Kansas City Athletics released Vic Raschi.
The New York Giants released Sid Gordon.
The Cleveland Indians signed Cal McLish as a free agent.
Seattle (PCL) purchased Steve Ridzik from the Cincinnati Redlegs.
The Cleveland Indians purchased George Spencer from the St. Louis Cardinals.
The Baltimore Orioles traded Cal Abrams to the Chicago White Sox for Bobby Adams.
The St. Louis Cardinals released Harry Walker.
The Cleveland Indians released Ralph Kiner.
The Chicago White Sox traded Jim Busby and Chico Carrasquel to the Cleveland Indians for Larry Doby.
The Cleveland Indians released Ferris Fain.
The Philadelphia Phillies signed Wally Westlake as a free agent.
The Washington Senators traded Bob Porterfield, Johnny Schmitz, Tom Umphlett and Mickey Vernon to the Boston Red Sox for Al Curtis (minors), Dick Brodowski, Neil Chrisley, Tex Clevenger and Karl Olson.
The New York Giants signed Felipe Alou as an amateur free agent.
The Baltimore Orioles drafted Bob Boyd from the St. Louis Cardinals in the 1955 rule 5 draft.
The Cleveland Indians drafted Jim Dunn from the Pittsburgh Pirates in the 1955 minor league draft.
The Chicago Cubs drafted George Freese from the Pittsburgh Pirates in the 1955 minor league draft.
The Milwaukee Braves drafted Gabe Gabler from the Brooklyn Dodgers in the 1955 minor league draft.
The Chicago Cubs drafted Johnny Goryl from the Baltimore Orioles in the 1955 minor league draft.
The New York Yankees drafted Milt Graff from the Pittsburgh Pirates in the 1955 minor league draft.
The Washington Senators drafted Connie Grob from the Brooklyn Dodgers in the 1955 rule 5 draft.
The Kansas City Athletics drafted Troy Herriage from Oakland (PCL) in the 1955 rule 5 draft.
The Chicago Cubs drafted Monte Irvin from the New York Giants in the 1955 rule 5 draft.
Seattle (PCL) drafted Ken Landenberger from the Chicago White Sox in the 1955 minor league draft.
The St. Louis Cardinals drafted Ed Mayer from the Boston Red Sox in the 1955 minor league draft.
The Pittsburgh Pirates drafted Jack McMahan from the New York Yankees in the 1955 rule 5 draft.
The St. Louis Cardinals drafted Billy Muffett from the Chicago Cubs in the 1955 rule 5 draft.
The New York Giants drafted Bobby Prescott from the Pittsburgh Pirates in the 1955 minor league draft.
The Detroit Tigers drafted Joe Presko from the St. Louis Cardinals in the 1955 rule 5 draft.
The New York Giants drafted Steve Ridzik from Seattle (PCL) in the 1955 rule 5 draft.
The New York Giants drafted Freddy Rodriguez from the Milwaukee Braves in the 1955 minor league draft.
The Brooklyn Dodgers drafted Ken Rowe from the Detroit Tigers in the 1955 minor league draft.
The Milwaukee Braves drafted Lou Sleater from the Kansas City Athletics in the 1955 rule 5 draft.
The New York Giants drafted Dick Strahs from the Chicago White Sox in the 1955 minor league draft.
The New York Giants drafted Bert Thiel from the Milwaukee Braves in the 1955 minor league draft.
The New York Giants drafted Valmy Thomas from the Pittsburgh Pirates in the 1955 minor league draft.
The Chicago Cubs drafted Vito Valentinetti from Toronto (International) in the 1955 rule 5 draft.
The Detroit Tigers drafted Hal Woodeshick from the New York Giants in the 1955 minor league draft.
The Cincinnati Redlegs traded Hobie Landrith to the Chicago Cubs for Hal Jeffcoat.
The Chicago White Sox traded Virgil Trucks to the Detroit Tigers for Bubba Phillips.
The Boston Red Sox signed Jay Ritchie as an amateur free agent.
Seattle (PCL) purchased Jim Robertson from the Kansas City Athletics.
The St. Louis Cardinals selected Ellis Kinder off waivers from the Boston Red Sox.
The Philadelphia Phillies purchased Frank Baumholtz from the Chicago Cubs.
The Chicago Cubs traded Don Elston and Randy Jackson to the Brooklyn Dodgers for Don Hoak, Russ Meyer and Walt Moryn.
The Chicago Cubs released Walker Cooper.
The St. Louis Cardinals signed Walker Cooper as a free agent.
The Brooklyn Dodgers purchased Jack Littrell from the Kansas City Athletics.
The Detroit Tigers traded Leo Cristante and cash to the Brooklyn Dodgers for Pete Wojey.
The Cleveland Indians signed Bob Allen as an amateur free agent.
The Cincinnati Redlegs signed Rogelio Alvarez as an amateur free agent.
The Cincinnati Redlegs signed Joe Azcue as an amateur free agent.
The Cincinnati Redlegs signed Jim Bailey as an amateur free agent.
The Washington Senators signed Jack Baldschun as an amateur free agent.
The Baltimore Orioles obtained George Bamberger from Oakland (PCL) as part of a minor league working agreement.
The Pittsburgh Pirates signed Ed Bauta as an amateur free agent.
The Pittsburgh Pirates signed Bo Belinsky as an amateur free agent.
Chet Boak sent from Salem (Appalachian) to the Kansas City Athletics in an unknown transaction.
The New York Giants signed Ernie Bowman as an amateur free agent.
The Chicago White Sox signed Alan Brice as an amateur free agent.
The New York Giants purchased Ernie Broglio from Vancouver (PCL).
Bud Byerly sent from the New York Giants to the Washington Senators in an unknown transaction.
The Chicago White Sox signed Cam Carreon as an amateur free agent.
The Cincinnati Redlegs signed Elio Chacon as an amateur free agent.
The St. Louis Cardinals signed Nelson Chittum as an amateur free agent.
The St. Louis Cardinals signed Don Choate as an amateur free agent.
Chuck Cottier sent from New Iberia (Evangeline) to the Milwaukee Braves in an unknown transaction.
The Washington Senators signed Bert Cueto as an amateur free agent.
The Brooklyn Dodgers signed Tommy Davis as an amateur free agent.
The Kansas City Athletics signed Ed Donnelly as an amateur free agent.
The St. Louis Cardinals signed Jim Donohue as an amateur free agent.
The Cincinnati Redlegs signed Curt Flood as an amateur free agent.
Terry Fox sent from New Iberia (Evangeline) to the Milwaukee Braves in an unknown transaction.
The Cincinnati Redlegs signed Joe Gaines as an amateur free agent.
The Brooklyn Dodgers signed Bob Giallombardo as an amateur free agent.
The Detroit Tigers signed Fred Gladding as an amateur free agent.
The Baltimore Orioles signed Ron Hansen as an amateur free agent.
The Philadelphia Phillies signed Tim Harkness as an amateur free agent.
The Washington Senators signed Jim Heise as an amateur free agent.
The St. Louis Cardinals signed Jim Hickman as an amateur free agent.
The Baltimore Orioles signed Chuck Hinton as an amateur free agent.
The Chicago White Sox signed Ed Hobaugh as an amateur free agent.
The Cincinnati Redlegs obtained Larry Jansen from Seattle (PCL) as part of a minor league working agreement.
The Pittsburgh Pirates signed Julian Javier as an amateur free agent.
The New York Yankees signed Deron Johnson as an amateur free agent.
Lou Johnson sent from the Pittsburgh Pirates to the Chicago Cubs in an unknown transaction.
The Kansas City Athletics signed Hal Jones as an amateur free agent.
The Cincinnati Redlegs obtained Bill Kennedy from Seattle (PCL) as part of a minor league working agreement.
The Milwaukee Braves signed Bobby Knoop as an amateur free agent.
The Detroit Tigers signed Howie Koplitz as an amateur free agent.
The Detroit Tigers signed Frank Kostro as an amateur free agent.
Bill Kunkel sent from the Boston Red Sox to the Brooklyn Dodgers in an unknown transaction.
The Pittsburgh Pirates signed Bob Lee as an amateur free agent.
The Milwaukee Braves signed Em Lindbeck as an amateur free agent.
The Kansas City Athletics signed Gordon Mackenzie as an amateur free agent.
The Washington Senators signed Hector Maestri as an amateur free agent.
The Chicago White Sox signed J.C. Martin as an amateur free agent.
The Washington Senators signed Tom McAvoy as an amateur free agent.
Jim McDonald sent from the New York Yankees to the Baltimore Orioles in an unknown transaction.
The Brooklyn Dodgers obtained Ed Mickelson from Portland (PCL) as part of a minor league working agreement.
The Brooklyn Dodgers signed Don Miles as an amateur free agent.
The Chicago White Sox signed Don Mincher as an amateur free agent.
Felipe Montemayor sent from the Pittsburgh Pirates to Mexico City Tigers (Mexican) in an unknown transaction.
The New York Yankees signed Phil Mudrock as an amateur free agent.
The St. Louis Cardinals signed Mel Nelson as an amateur free agent.
The St. Louis Cardinals signed Gene Oliver as an amateur free agent.
Diomedes Olivo sent from the Cincinnati Redlegs to Mexico City Reds (Mexican) in an unknown transaction.
Orlando Pena sent from Daytona Beach (Florida State) to the Cincinnati Redlegs in an unknown transaction.
The Pittsburgh Pirates signed George Perez as an amateur free agent.
The Cleveland Indians signed Jim Perry as an amateur free agent.
The Chicago White Sox signed Gary Peters as an amateur free agent.
Duane Pillette sent from the Baltimore Orioles to Buffalo (International) in an unknown transaction.
The Cincinnati Redlegs signed Vada Pinson as an amateur free agent.
The Milwaukee Braves signed Juan Pizarro as an amateur free agent.
The Detroit Tigers signed Phil Regan as an amateur free agent.
The New York Yankees obtained Marshall Renfroe from St Petersburg (Florida State) as part of a minor league working agreement.
The New York Yankees signed Hal Reniff as an amateur free agent.
The Detroit Tigers signed Buck Rodgers as an amateur free agent.
The Cincinnati Redlegs signed Cookie Rojas as an amateur free agent.
The Chicago Cubs signed Joe Schaffernoth as an amateur free agent.
The Cincinnati Redlegs obtained Art Schult from Seattle (PCL) as part of a minor league working agreement.
The Detroit Tigers signed Gordon Seyfried as an amateur free agent.
The Baltimore Orioles signed Barry Shetrone as an amateur free agent.
The Brooklyn Dodgers signed Nate Smith as an amateur free agent.
The Boston Red Sox signed Tracy Stallard as an amateur free agent.
The Baltimore Orioles signed Wes Stock as an amateur free agent.
The Pittsburgh Pirates signed Moose Stubing as an amateur free agent.
Joe Taylor sent from the Kansas City Athletics to the Cincinnati Redlegs in an unknown transaction.
The Cleveland Indians signed Ron Taylor as an amateur free agent.
The Milwaukee Braves signed Sammy Taylor as a free agent.
The Cleveland Indians signed Carl Thomas as an amateur free agent.
The Cleveland Indians signed Dave Tyriver as an amateur free agent.
The Milwaukee Braves signed Bob Uecker as an amateur free agent.
The Baltimore Orioles signed Fred Valentine as an amateur free agent.
The New York Yankees signed Jay Ward as an amateur free agent.
Johnny Weekly sent from Salem (Northwest) to the New York Giants in an unknown transaction.
Elder White sent from the Cleveland Indians to the Pittsburgh Pirates in an unknown transaction.
The St. Louis Cardinals signed Fred Whitfield as an amateur free agent.
The Chicago Cubs signed Billy Williams as an amateur free agent.
The Kansas City Athletics signed Don Williams as an amateur free agent.
The New York Giants signed Neil Wilson as an amateur free agent.
The Boston Red Sox obtained Gordie Windhorn from Oklahoma City (Texas) as part of a minor league working agreement.
The Milwaukee Braves signed Corky Withrow as an amateur free agent.
Roy Wright sent from the St. Louis Cardinals to ??? in an unknown transaction.
The Cincinnati Redlegs released Sam Mele.
The Washington Senators released Spec Shea.
Toronto (International) purchased Don Johnson from the Baltimore Orioles. (Date given is approximate. Exact date is uncertain.)
The Cincinnati Redlegs traded Jackie Collum to the St. Louis Cardinals for Brooks Lawrence and Sonny Senerchia.
The Boston Red Sox purchased Pumpsie Green from Stockton (California).
The Washington Senators traded Bobby Kline and Mickey McDermott to the New York Yankees for Lou Berberet, Herb Plews, Dick Tettelbach and Bob Wiesler. The New York Yankees sent Whitey Herzog (April 2, 1956) to the Washington Senators to complete the trade.
The Washington Senators released Bruce Edwards.
The Cleveland Indians purchased Ted Beard from San Francisco (PCL).
The Kansas City Athletics purchased Tommy Lasorda from the Brooklyn Dodgers.
The New York Giants purchased Jim Mangan from the Pittsburgh Pirates.
The Boston Red Sox released Dizzy Trout.
The Cleveland Indians signed Sam Mele as a free agent.
The Chicago Cubs traded Hank Sauer to the St. Louis Cardinals for Pete Whisenant.
The Detroit Tigers purchased Don Bradey from the Chicago White Sox.
Indianapolis (Negro American) sent John Wyatt to the Milwaukee Braves as part of a conditional deal.
Jim Pearce assigned the Cincinnati Redlegs to the St. Louis Cardinals. (Date given is approximate. Exact date is uncertain.)