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Transactions listed are from November 1 of previous year to April 1 of the following year.
October 15, 1957
Purchased Bud Podbielan from the Cincinnati Redlegs. (Date given is approximate. Exact date is uncertain.)
December 2, 1957
Drafted Gary Geiger from the St. Louis Cardinals in the 1957 rule 5 draft.
Johnny Gray drafted by the Philadelphia Phillies in the 1957 rule 5 draft.
December 4, 1957
Traded Al Smith and Early Wynn to the Chicago White Sox. Received Fred Hatfield and Minnie Minoso.
1958
Signed Max Alvis as an amateur free agent.
Signed Larry Brown as an amateur free agent.
Signed Mike de la Hoz as an amateur free agent.
Signed Doc Edwards as an amateur free agent.
Signed Jack Kubiszyn as an amateur free agent.
Signed Jim Lawrence as an amateur free agent.
Signed Ramon Lopez as an amateur free agent.
Hector Martinez received from the Milwaukee Braves in an unknown transaction.
Signed Sonny Siebert as an amateur free agent.
Signed Jim Weaver as an amateur free agent.
January 29, 1958
Selected Mickey Vernon off waivers from the Boston Red Sox.
February 18, 1958
Traded Hank Aguirre and Jim Hegan to the Detroit Tigers. Received Jay Porter and Hal Woodeshick.
February 25, 1958
Traded Pete Mesa (minors) to the Washington Senators. Received Milt Bolling.
March 26, 1958
Selected Chuck Churn off waivers from the Boston Red Sox.
March 27, 1958
Traded Milt Bolling and Vito Valentinetti to the Detroit Tigers. Received Pete Wojey and $20,000.
April 1, 1958 (Standings)
Traded Bud Daley, Dick Williams and Gene Woodling to the Baltimore Orioles. Received Larry Doby and Don Ferrarese.
April 3, 1958 (Standings)
Signed Steve Hamilton as an amateur free agent.
April 8, 1958 (Standings)
Purchased Steve Ridzik from the San Francisco Giants.
April 23, 1958 (Standings)
Traded Fred Hatfield to the Cincinnati Redlegs. Received Bob Kelly.
May 5, 1958 (Standings)
Sold Chuck Churn to the Cincinnati Redlegs. (Date given is approximate. Exact date is uncertain.)
May 18, 1958 (Standings)
Purchased Fred Hatfield from the Cincinnati Redlegs.
May 29, 1958 (Standings)
Released Mike Garcia.
June 7, 1958 (Standings)
Selected Jim Constable off waivers from the San Francisco Giants.
June 12, 1958 (Standings)
Traded Chico Carrasquel to the Kansas City Athletics. Received Billy Hunter.
June 15, 1958 (Standings)
Traded Roger Maris, Dick Tomanek and Preston Ward to the Kansas City Athletics. Received Woodie Held and Vic Power.
July 2, 1958 (Standings)
Released Bob Lemon.
Selected Morrie Martin off waivers from the St. Louis Cardinals.
July 12, 1958 (Standings)
Jim Constable selected by the Washington Senators off waivers.
July 20, 1958 (Standings)
Traded Stu Locklin to the Boston Red Sox. Received Jack Spring. (Date given is approximate. Exact date is uncertain.)
August 4, 1958 (Standings)
Purchased Randy Jackson from the Los Angeles Dodgers.
August 23, 1958 (Standings)
Hoyt Wilhelm selected by the Baltimore Orioles off waivers.
October 13, 1958 (Standings)
Traded Dave Pope and Larry Raines to Toronto (International). Received Bobby Tiefenauer.
October 27, 1958
Traded Jay Porter to the Washington Senators. Received Ossie Alvarez.
November 20, 1958
Traded Ossie Alvarez, Don Mossi and Ray Narleski to the Detroit Tigers. Received Al Cicotte and Billy Martin.
December 1, 1958
Drafted Ray Webster from Sacramento (PCL) in the 1958 rule 5 draft.
December 2, 1958
Chuck Hiller selected by the San Francisco Giants in the 1958 minor league draft.
Traded Bobby Avila to the Baltimore Orioles. Received Russ Heman and $30,000.
Traded Gary Geiger and Vic Wertz to the Boston Red Sox. Received Jim Piersall.
1959
Signed Jerry Fosnow as an amateur free agent.
Signed Mike Garcia as a free agent.
Signed Gene Leek as an amateur free agent.
Signed Al Luplow as an amateur free agent.
Released Hector Martinez.
Signed Duke Sims as an amateur free agent.
Jack Spring sent to Dallas (American Association) in an unknown transaction.
Signed Dave Vineyard as an amateur free agent.
Signed Mike White as an amateur free agent.
January 13, 1959
Sold Joe Altobelli to Toronto (International).
January 23, 1959
Traded Earl Averill and Morrie Martin to the Chicago Cubs. Received Jim Bolger and John Briggs.
February 2, 1959
Billy Harrell selected by the St. Louis Cardinals off waivers.
March 21, 1959
Traded Larry Doby to the Detroit Tigers. Received Tito Francona.