| Friday, October 12th , 1956 |
| Chicago Chiefs: Released RP Gene R Smith. |
| Chicago Chiefs: Released SP Reuben Johnson. |
| Chicago Chiefs: Released RP Dallas Griffith. |
| Philadelphia Keystones: Released RP Eddie Ross. |
| Philadelphia Keystones: Released CL Al Smith. |
| Philadelphia Keystones: Released RP Harvey Brown. |
| Philadelphia Keystones: Released SP Tom Gearhart. |
| Washington Eagles: Released RP Jackie Reynolds. |
| Washington Eagles: Released RP Howard Miller Jr.. |
| Washington Eagles: Released RP Ben Malito. |
| Boston Minutemen: Released RP Mal Weeks. |
| Detroit Dynamos: Activated SP Ed Hillston from the 60-day injured list. |
| Detroit Dynamos: SP Ed Hillston was added to the secondary (40-man) roster. |
| Detroit Dynamos: Released RP Don Fox. |
| Detroit Dynamos: Released SP Jack Knudsen. |
| Detroit Dynamos: Released RP Wally Eversole. |
| Detroit Dynamos: Released SS Mickey Jones. |
| Detroit Dynamos: Released RP Clay Strother. |
| Kansas City Kings: Activated 2B Billy Bryant from the 60-day injured list. |
| Chicago Cougars: Released 3B George Lathrop. |
| Montreal Saints: Activated LF Bill Ingraham from the 60-day injured list. |
| Montreal Saints: LF Bill Ingraham was added to the secondary (40-man) roster. |
| Montreal Saints: Released SP Jack Tyler. |
| Los Angeles Stars: Activated RF Don Berry from the 60-day injured list. |
| Los Angeles Stars: RP Stan Brueck was designated for assignment, placed on waivers and taken off the secondary (40-man) roster. |
| Los Angeles Stars: Released SP Pat Warren. |
| Cincinnati Cannons: Released SP Ray Rutherford. |
| Cincinnati Cannons: Released SP Hank Kopper. |
| Kansas City Kings: 3B Bob Lopez retired from professional baseball. |
| Philadelphia Keystones: RP Walter Johnson retired from professional baseball. |
| San Francisco Sailors: SP Danny Hern retired from professional baseball. |
| New York Gothams: 1B Bill Murnane retired from professional baseball. |
| 1B Don Smith retired from professional baseball. |
| RP Johnnie Fitzgerald retired from professional baseball. |
| RF Lou Dillard retired from professional baseball. |
| 1B Tony Ballinger retired from professional baseball. |
| RF Joe Curtis retired from professional baseball. |
| RP Donnie Whitney retired from professional baseball. |
| 1B Nate Power retired from professional baseball. |
| RP Johnny Garner retired from professional baseball. |
| 2B Harry Finney retired from professional baseball. |
| 1B Cal Rice retired from professional baseball. |
| 2B Jerry Keith retired from professional baseball. |
| SS Jim Sibert retired from professional baseball. |
| RP Dutch Yoak retired from professional baseball. |
| LF Wilbur Zimmerman retired from professional baseball. |
| SP Babe Stinson retired from professional baseball. |
| RP Roland Stewart retired from professional baseball. |
| C Mel Campbell retired from professional baseball. |
| RP Ed Richards retired from professional baseball. |
| RP Hoppy Johnson retired from professional baseball. |
| LF Billy Black retired from professional baseball. |
| C Mark Smith retired from professional baseball. |
| RF Robert Solomon retired from professional baseball. |
| LF Bill Sikorski retired from professional baseball. |
| CF Paul Porter retired from professional baseball. |
| RF Rudy Ellison retired from professional baseball. |
| LF Joe Rutherford retired from professional baseball. |
| 2B Billy Clark retired from professional baseball. |
| RF Elbie White retired from professional baseball. |
| SP Gordie Irwin retired from professional baseball. |
| C Josh Porter retired from professional baseball. |
| C Solly Skidmore retired from professional baseball. |
| RF Bob Coon retired from professional baseball. |
| RP Red More retired from professional baseball. |
| Montreal Saints: RP Bob Kolb (B Mobile) retired from professional baseball. |
| SP Donnie Jones retired from professional baseball. |
| LF Rusty Matthews retired from professional baseball. |
| RF Tony Mullis retired from professional baseball. |
| Montreal Saints: RP Ed Mankey (AA Nashville) retired from professional baseball. |
| RF Hank Giordano retired from professional baseball. |
| Washington Eagles: Team Trainer Alex McPherson retires. |
| Detroit Dynamos: Team Trainer Bill Leonard retires. |
| Pittsburgh Miners: First Base Coach Jimmy Jones retires. |
| Montreal Saints: First Base Coach Gordon Hawthorne retires. |
| New York Gothams: First Base Coach Jay Ziegler retires. |
| San Francisco Sailors: Bench Coach Bob Braatz retires. |
| Hitting Coach Gordie Henderson retires. |
| General Manager Pat Moynihan retires. |
| Hitting Coach Paul Tattersall retires. |
| Manager Sandy Lovelle retires. |
| Manager Jim Chandler retires. |
| First Base Coach Roger Rooks retires. |
| Team Trainer Al Prout retires. |
| Manager Irv Howard retires. |
| Bench Coach Sam Barnes retires. |
| Bench Coach Bill Smith retires. |
| Pitching Coach Red Garrett retires. |
| Manager Art Newton retires. |
| Hitting Coach Win Marshall retires. |
| Hitting Coach Pedro Acosta retires. |
| Pitching Coach Emil Blow retires. |
| Chicago Chiefs: Signed General Manager Bolivar Jim Smith to a 2-year contract extension. |
| Chicago Chiefs: Signed Pitching Coach James Aiken to a 2-year contract extension. |
| Chicago Chiefs: Signed Team Trainer Aanand Adani to a 2-year contract extension. |
| Chicago Chiefs: Signed Scouting Director Charlie Green to a 2-year contract extension. |
| Chicago Chiefs: Signed Manager Carl Burbach to a 2-year contract extension. |
| Philadelphia Keystones: Signed General Manager Ace Frank to a 2-year contract extension. |
| Philadelphia Keystones: Signed 3B Coach Jay Johnson to a 2-year contract extension. |
| Philadelphia Keystones: Signed Pitching Coach Mike Donohue to a 2-year contract extension. |
| Philadelphia Keystones: Signed Manager Don Fox to a 2-year contract extension. |
| Washington Eagles: Fired 1B Coach Dave Trowbridge. |
| Washington Eagles: Signed General Manager Jerry Lavin to a 2-year contract extension. |
| Washington Eagles: Signed Bench Coach Brooks Wise to a 2-year contract extension. |
| Washington Eagles: Signed Manager Pete Molyneaux to a 2-year contract extension. |
| Washington Eagles: Signed Pitching Coach Al Siebert to a 2-year contract extension. |
| New York Gothams: Manager Ad Doria leaves the team, his contract was not renewed |
| New York Gothams: Hitting Coach Walt Johns leaves the team, his contract was not renewed |
| New York Gothams: Pitching Coach William Rill leaves the team, his contract was not renewed |
| New York Gothams: Team Trainer Carroll Jeter leaves the team, his contract was not renewed |
| Pittsburgh Miners: Signed Bench Coach Charley McCain to a 2-year contract extension. |
| Pittsburgh Miners: Signed Team Trainer Frank Ruvalcaba to a 2-year contract extension. |
| Pittsburgh Miners: Signed 3B Coach Harry Horn to a 2-year contract extension. |
| Pittsburgh Miners: Signed Hitting Coach Ed Santos to a 2-year contract extension. |
| St. Louis Pioneers: Fired Pitching Coach Roy Calfee. |
| St. Louis Pioneers: Signed Team Trainer George Anthony to a 2-year contract extension. |
| St. Louis Pioneers: Signed Manager Phil Elvine to a 2-year contract extension. |
| St. Louis Pioneers: Signed Bench Coach Bobby Gentry to a 2-year contract extension. |
| St. Louis Pioneers: Signed 3B Coach Bob Prewitt to a 2-year contract extension. |
| Boston Minutemen: Fired Pitching Coach Jim Hodder. |
| Boston Minutemen: Signed Scouting Director Chief Raymond to a 2-year contract extension. |
| Boston Minutemen: Signed 3B Coach Al Jensen to a 2-year contract extension. |
| Detroit Dynamos: Fired Manager Dick York. |
| Detroit Dynamos: Pitching Coach Jim Tauber leaves the team, his contract was not renewed |
| Detroit Dynamos: Signed 3B Coach Glenn Morrison to a 2-year contract extension. |
| Kansas City Kings: Fired 1B Coach Elmer De Gray. |
| Kansas City Kings: Signed Manager Glenn Carney to a 2-year contract extension. |
| Kansas City Kings: Signed Team Trainer Dave Hay to a 2-year contract extension. |
| Kansas City Kings: Signed Pitching Coach Karl Johnson to a 2-year contract extension. |
| Kansas City Kings: Signed Hitting Coach George Powers to a 2-year contract extension. |
| Chicago Cougars: Signed Scouting Director Dixie Marsh to a 2-year contract extension. |
| Chicago Cougars: Signed Manager Doc Woods to a 2-year contract extension. |
| Cleveland Foresters: Pitching Coach Curly Curling leaves the team, his contract was not renewed |
| Cleveland Foresters: General Manager Henry Rowland leaves the team, his contract was not renewed |
| Cleveland Foresters: Hitting Coach Oscar Sanchez leaves the team, his contract was not renewed |
| Cleveland Foresters: Team Trainer Howie Scott leaves the team, his contract was not renewed |
| Montreal Saints: Fired Hitting Coach Don Deters. |
| Montreal Saints: Signed Team Trainer Amby French to a 2-year contract extension. |
| Montreal Saints: Signed Pitching Coach George Kinkade to a 2-year contract extension. |
| Montreal Saints: Signed Bench Coach Johnny Gilbert to a 2-year contract extension. |
| Montreal Saints: Signed 3B Coach Charlie McGonigal to a 2-year contract extension. |
| Los Angeles Stars: Fired Manager Ken Tannen. |
| Los Angeles Stars: Fired Hitting Coach Joe Rice. |
| Los Angeles Stars: Signed Bench Coach Dick Cotton to a 2-year contract extension. |
| Los Angeles Stars: Signed Scouting Director Al Swain to a 2-year contract extension. |
| Los Angeles Stars: Signed 3B Coach Tanzan Miyake to a 2-year contract extension. |
| San Francisco Sailors: Signed General Manager Buzz Burton to a 2-year contract extension. |
| Toronto Wolves: Scouting Director Art Willis leaves the team, his contract was not renewed |
| Toronto Wolves: Manager Jim Whitehead leaves the team, his contract was not renewed |
| Toronto Wolves: Hitting Coach Verlin Alexander leaves the team, his contract was not renewed |
| Toronto Wolves: 1B Coach Eddie Mosqueda leaves the team, his contract was not renewed |
| Toronto Wolves: Pitching Coach Joe Short leaves the team, his contract was not renewed |
| Cincinnati Cannons: Hitting Coach Joe Smith leaves the team, his contract was not renewed |
| Cincinnati Cannons: Signed Pitching Coach Al Dixon to a 2-year contract extension. |
| Cincinnati Cannons: Signed 3B Coach Orville Aldrich to a 2-year contract extension. |
| Cincinnati Cannons: Signed Manager Buddy Baumgart to a 2-year contract extension. |
| Cincinnati Cannons: Signed General Manager Henry Myles to a 2-year contract extension. |
| Cincinnati Cannons: Signed 1B Coach John Wright to a 2-year contract extension. |
| Boston Minutemen: Activated 3B Hilly Westbrook from the 60-day injured list. |
| Boston Minutemen: C Joe Clark was designated for assignment, placed on waivers and taken off the secondary (40-man) roster. |
| Montreal Saints: Activated CF Don Goldman from the 60-day injured list. |
| Montreal Saints: CF Don Goldman was added to the secondary (40-man) roster. |
| Detroit Dynamos: Activated SS Joe Reed from the 60-day injured list. |
| Kansas City Kings: Activated SP Beau McClellan from the injured list. |
| Cincinnati Cannons: Signed free agent RP Hank Kopper to a minor league contract. |
| The Chicago Cougars traded 25-year old LF Doc Zimmerman and $12,000 in cash to the Chicago Chiefs, getting 24-year old LHP Norm McBride, 22-year old minor league C Stan Czerwinski, 24-year old minor league RF Virgil McLaughlin, 22-year old minor league 2B Hack Williams, and 24-year old minor league RHP Hank Walker in return. |
| The St. Louis Pioneers traded 30-year old 3B Chet Harris and 24-year old minor league RHP Oscar Edwards to the San Francisco Sailors, getting 35-year old RHP Win Lewis in return. |
| New York Gothams: LF Walt Messer becomes a free-agent. |
| New York Gothams: SP George Garrison becomes a free-agent. |
| New York Gothams: 2B Billy Woytek becomes a free-agent. |
| Los Angeles Stars: LF Mike T Taylor becomes a free-agent. |
| Chicago Cougars: CL David Molina becomes a free-agent. |
| Chicago Chiefs: C Pete Casstevens becomes a free-agent. |
| Chicago Cougars: 2B Buddy Schneider becomes a free-agent. |
| Chicago Cougars: SS Skipper Schneider becomes a free-agent. |
| Cleveland Foresters: RF Orie Martinez becomes a free-agent. |
| Pittsburgh Miners: C Joe Loyd becomes a free-agent. |
