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The 1947 season’s official transaction log: 295 trades, signings and releases involving major-league clubs, listed newest first.
| Date | Type | Player | From | To | Details |
|---|---|---|---|---|---|
| Dec 29, 1947 | Released | Rick Ferrell | Washington Senators | — | Release |
| Dec 19, 1947 | Released | Gene Thompson | New York Giants | — | Release |
| Dec 11, 1947 | Trade | Tommy Hughes | Philadelphia Phillies | Cincinnati Reds | Trade |
| Dec 11, 1947 | Trade | Bert Haas | Cincinnati Reds | Philadelphia Phillies | Trade |
| Dec 11, 1947 | Trade | Red Embree | Cleveland Indians | New York Yankees | Trade |
| Dec 11, 1947 | Trade | Allie Clark | New York Yankees | Cleveland Indians | Trade |
| Dec 10, 1947 | Trade | Al Kozar | Boston Red Sox | Washington Senators | Trade |
| Dec 10, 1947 | Trade | Leon Culberson | Boston Red Sox | Washington Senators | Trade |
| Dec 10, 1947 | Trade | Stan Spence | Washington Senators | Boston Red Sox | Trade |
| Dec 9, 1947 | Trade | Unnamed | Cleveland Indians | St. Louis Browns | $50000 |
| Dec 9, 1947 | Trade | George Metkovich | Cleveland Indians | St. Louis Browns | Trade |
| Dec 9, 1947 | Trade | Johnny Berardino | St. Louis Browns | Cleveland Indians | Trade |
| Dec 8, 1947 | Trade | Preacher Roe | Pittsburgh Pirates | Brooklyn Dodgers | Trade |
| Dec 8, 1947 | Trade | Billy Cox | Pittsburgh Pirates | Brooklyn Dodgers | Trade |
| Dec 8, 1947 | Trade | Gene Mauch | Pittsburgh Pirates | Brooklyn Dodgers | Trade |
| Dec 8, 1947 | Trade | Dixie Walker | Brooklyn Dodgers | Pittsburgh Pirates | Trade |
| Dec 8, 1947 | Trade | Hal Gregg | Brooklyn Dodgers | Pittsburgh Pirates | Trade |
| Dec 8, 1947 | Trade | Vic Lombardi | Brooklyn Dodgers | Pittsburgh Pirates | Trade |
| Dec 6, 1947 | Signed | Don Elston | — | Chicago Cubs | Amateur free agent signing |
| Dec 4, 1947 | Trade | Les Fleming | Cleveland Indians | Pittsburgh Pirates | Trade |
| Dec 4, 1947 | Trade | Elbie Fletcher | Pittsburgh Pirates | Cleveland Indians | Trade |
| Dec 4, 1947 | Trade | Unnamed | New York Giants | San Diego | $65000 |
| Dec 4, 1947 | Trade | Jack Graham | New York Giants | San Diego | Trade |
| Dec 4, 1947 | Trade | Jake Wade | New York Giants | San Diego | Trade |
| Dec 4, 1947 | Trade | Mike Budnick | New York Giants | San Diego | Trade |
| Dec 4, 1947 | Trade | Jack Harshman | San Diego | New York Giants | Trade |
| Dec 3, 1947 | Trade | Jimmy Bloodworth | Pittsburgh Pirates | Brooklyn Dodgers | Trade |
| Dec 3, 1947 | Trade | Vic Barnhart | Pittsburgh Pirates | Brooklyn Dodgers | Trade |
| Dec 3, 1947 | Trade | Monty Basgall | Brooklyn Dodgers | Pittsburgh Pirates | Trade |
| Nov 24, 1947 | Released | Si Johnson | Boston Braves | — | Release |
| Nov 22, 1947 | Trade | Jerry Priddy | Washington Senators | St. Louis Browns | Trade |
| Nov 22, 1947 | Trade | Johnny Berardino | St. Louis Browns | Washington Senators | Trade |
| Nov 20, 1947 | Trade | Unnamed | Cleveland Indians | St. Louis Browns | $25000 |
| Nov 20, 1947 | Trade | Bob Muncrief | St. Louis Browns | Cleveland Indians | Trade |
| Nov 20, 1947 | Trade | Wally Judnich | St. Louis Browns | Cleveland Indians | Trade |
| Nov 20, 1947 | Trade | Dick Kokos | Cleveland Indians | St. Louis Browns | Trade |
| Nov 20, 1947 | Trade | Bryan Stephens | Cleveland Indians | St. Louis Browns | Trade |
| Nov 20, 1947 | Trade | Joe Frazier | Cleveland Indians | St. Louis Browns | Trade |
| Nov 18, 1947 | Trade | Unnamed | Boston Red Sox | St. Louis Browns | $65000 |
| Nov 18, 1947 | Trade | Ellis Kinder | St. Louis Browns | Boston Red Sox | Trade |
| Nov 18, 1947 | Trade | Billy Hitchcock | St. Louis Browns | Boston Red Sox | Trade |
| Nov 18, 1947 | Trade | Sam Dente | Boston Red Sox | St. Louis Browns | Trade |
| Nov 18, 1947 | Trade | Clem Dreisewerd | Boston Red Sox | St. Louis Browns | Trade |
| Nov 18, 1947 | Trade | Bill Sommers | Boston Red Sox | St. Louis Browns | Trade |
| Nov 18, 1947 | Trade | Jim Russell | Pittsburgh Pirates | Boston Braves | Trade |
| Nov 18, 1947 | Trade | Bill Salkeld | Pittsburgh Pirates | Boston Braves | Trade |
| Nov 18, 1947 | Trade | Al Lyons | Pittsburgh Pirates | Boston Braves | Trade |
| Nov 18, 1947 | Trade | Johnny Hopp | Boston Braves | Pittsburgh Pirates | Trade |
| Nov 18, 1947 | Trade | Danny Murtaugh | Boston Braves | Pittsburgh Pirates | Trade |
| Nov 17, 1947 | Trade | Unnamed | Boston Red Sox | St. Louis Browns | $310000 |
| Nov 17, 1947 | Trade | Vern Stephens | St. Louis Browns | Boston Red Sox | Trade |
| Nov 17, 1947 | Trade | Jack Kramer | St. Louis Browns | Boston Red Sox | Trade |
| Nov 17, 1947 | Trade | Roy Partee | Boston Red Sox | St. Louis Browns | Trade |
| Nov 17, 1947 | Trade | Jim Wilson | Boston Red Sox | St. Louis Browns | Trade |
| Nov 17, 1947 | Trade | Al Widmar | Boston Red Sox | St. Louis Browns | Trade |
| Nov 17, 1947 | Trade | Eddie Pellagrini | Boston Red Sox | St. Louis Browns | Trade |
| Nov 17, 1947 | Trade | Pete Layden | Boston Red Sox | St. Louis Browns | Trade |
| Nov 17, 1947 | Trade | Joe Ostrowski | Boston Red Sox | St. Louis Browns | Trade |
| Nov 1947 | Signed | Hank Foiles | — | New York Yankees | Amateur free agent signing (date approximate, per the source) |
| Nov 1947 | Signed as free agent | Skeeter Webb | — | Philadelphia Athletics | Free agent signing (date approximate, per the source) |
| Oct 24, 1947 | Released | Mel Harder | Cleveland Indians | — | Release |
| Oct 22, 1947 | Trade | Tommy Fine | Boston Red Sox | San Francisco | Trade |
| Oct 22, 1947 | Trade | Strick Shofner | Boston Red Sox | San Francisco | Trade |
| Oct 21, 1947 | Released | Al Lopez | Cleveland Indians | — | Release |
| Oct 20, 1947 | Released | Johnny Murphy | Boston Red Sox | — | Release |
| Oct 20, 1947 | Released | Eddie Smith | Boston Red Sox | — | Release |
| Oct 18, 1947 | Released | Skeeter Webb | Detroit Tigers | — | Release |
| Oct 14, 1947 | Released | Joe Medwick | St. Louis Cardinals | — | Release |
| Oct 9, 1947 | Signed | Randy Jackson | — | Chicago Cubs | Amateur free agent signing |
| Oct 6, 1947 | Trade | Hank Camelli | Boston Braves | San Diego | Trade |
| Oct 6, 1947 | Trade | Billy Kerr | San Diego | Boston Braves | Trade |
| Sep 30, 1947 | Released | Red Ruffing | Chicago White Sox | — | Release |
| Sep 30, 1947 | Trade | Gene Woodling | Pittsburgh Pirates | San Francisco | Trade |
| Sep 30, 1947 | Trade | Ken Gables | Pittsburgh Pirates | San Francisco | Trade |
| Sep 30, 1947 | Trade | Manny Pérez | Pittsburgh Pirates | San Francisco | Trade |
| Sep 29, 1947 | Trade | Roger Wolff | Pittsburgh Pirates | Sacramento | Trade |
| Sep 29, 1947 | Released | Hank Greenberg | Pittsburgh Pirates | — | Release |
| Sep 29, 1947 | Released | Rip Sewell | Pittsburgh Pirates | — | Release |
| Sep 29, 1947 | Released | Billy Sullivan | Pittsburgh Pirates | — | Release |
| Sep 28, 1947 | Released | Skeeter Newsome | Philadelphia Phillies | — | Release |
| Sep 27, 1947 | Released | Thornton Lee | Chicago White Sox | — | Release |
| Sep 25, 1947 | Trade | Unnamed | Boston Red Sox | San Francisco | $ |
| Sep 25, 1947 | Trade | Neill Sheridan | San Francisco | Boston Red Sox | Trade |
| Sep 24, 1947 | Released | Stan Hack | Chicago Cubs | — | Release |
| Sep 24, 1947 | Released | Bob Klinger | Boston Red Sox | — | Release |
| Sep 22, 1947 | Released | Claude Passeau | Chicago Cubs | — | Release |
| Sep 20, 1947 | Released | Ernie Lombardi | New York Giants | — | Release |
| Sep 20, 1947 | Trade | Unnamed | Pittsburgh Pirates | San Francisco | $100000 |
| Sep 20, 1947 | Trade | Bob Chesnes | San Francisco | Pittsburgh Pirates | Trade |
| Sep 19, 1947 | Released | Billy Jurges | Chicago Cubs | — | Release |
| Sep 19, 1947 | Released | Bill Lee | Chicago Cubs | — | Release |
| Sep 16, 1947 | Released | Billy Herman | Pittsburgh Pirates | — | Release |
| Sep 15, 1947 | Released | Mel Ott | New York Giants | — | Release |
| Sep 7, 1947 | Trade | Ed FitzGerald | Sacramento | Pittsburgh Pirates | Trade |
| Sep 7, 1947 | Trade | Unnamed | Pittsburgh Pirates | Sacramento | cash plus 3 players and 2 players on option |
| Sep 1, 1947 | Signed | Buzz Dozier | — | Washington Senators | Amateur free agent signing (date approximate, per the source) |
| Aug 31, 1947 | Released | Frankie Crosetti | New York Yankees | — | Release |
| Aug 23, 1947 | Signed as free agent | Billy Jurges | — | Chicago Cubs | Free agent signing |
| Aug 23, 1947 | Signed | Lloyd Merriman | — | Cincinnati Reds | Amateur free agent signing |
| Aug 1, 1947 | Signed | Bob Kelly | — | Chicago Cubs | Amateur free agent signing |
| Jul 28, 1947 | Released | Lee Griffeth | Philadelphia Athletics | — | Release |
| Jul 25, 1947 | Signed as free agent | Bob Carpenter | — | Chicago Cubs | Free agent signing (date approximate, per the source) |
| Jul 23, 1947 | Signed | Frank Thomas | — | Pittsburgh Pirates | Amateur free agent signing |
| Jul 17, 1947 | Signed as free agent | Willard Brown | — | St. Louis Browns | Free agent signing with first major-league team |
| Jul 17, 1947 | Signed as free agent | Hank Thompson | — | St. Louis Browns | Free agent signing with first major-league team |
| Jul 2, 1947 | Signed as free agent | Larry Doby | — | Cleveland Indians | Free agent signing with first major-league team |
| Jul 2, 1947 | Signed | Normie Roy | — | Boston Braves | Amateur free agent signing |
| Jul 1947 | Trade | Unnamed | New York Yankees | Bridgeport | $ |
| Jul 1947 | Trade | Joe Murray | New York Yankees | Bridgeport | Trade |
| Jul 1947 | Trade | Philip Mategrano | New York Yankees | Bridgeport | Trade |
| Jul 1947 | Trade | Arthur Visconti | New York Yankees | Bridgeport | Trade |
| Jul 1947 | Trade | Jack Burt | Bridgeport | New York Yankees | Trade |
| Jun 30, 1947 | Released | Bill Endicott | St. Louis Cardinals | — | Release |
| Jun 23, 1947 | Released | Art Herring | Pittsburgh Pirates | — | Release |
| Jun 14, 1947 | Trade | Ken Raffensberger | Philadelphia Phillies | Cincinnati Reds | Trade |
| Jun 14, 1947 | Trade | Hugh Poland | Philadelphia Phillies | Cincinnati Reds | Trade |
| Jun 14, 1947 | Trade | Al Lakeman | Cincinnati Reds | Philadelphia Phillies | Trade |
| Jun 14, 1947 | Trade | Jake Jones | Chicago White Sox | Boston Red Sox | Trade |
| Jun 14, 1947 | Trade | Rudy York | Boston Red Sox | Chicago White Sox | Trade |
| Jun 13, 1947 | Trade | Unnamed | New York Giants | Boston Braves | $ |
| Jun 13, 1947 | Trade | Bill Voiselle | New York Giants | Boston Braves | Trade |
| Jun 13, 1947 | Trade | Mort Cooper | Boston Braves | New York Giants | Trade |
| Jun 11, 1947 | Signed | Dick Manville | — | Boston Braves | Amateur free agent signing |
| Jun 7, 1947 | Trade | Babe Young | New York Giants | Cincinnati Reds | Trade |
| Jun 7, 1947 | Trade | Joe Beggs | Cincinnati Reds | New York Giants | Trade |
| Jun 1947 | Released | Dale Long | Cincinnati Reds | — | Release |
| Jun 1947 | Signed as free agent | Dale Long | — | Boston Red Sox | Free agent signing |
| May 25, 1947 | Signed as free agent | Joe Medwick | — | St. Louis Cardinals | Free agent signing |
| May 21, 1947 | Released | Frankie Hayes | Boston Red Sox | — | Release |
| May 20, 1947 | Trade | Birdie Tebbetts | Detroit Tigers | Boston Red Sox | Trade |
| May 20, 1947 | Trade | Hal Wagner | Boston Red Sox | Detroit Tigers | Trade |
| May 16, 1947 | Signed as free agent | Heinz Becker | — | Boston Braves | Free agent signing |
| May 16, 1947 | Signed as free agent | Frank McCormick | — | Boston Braves | Free agent signing (date approximate, per the source) |
| May 15, 1947 | Released | Johnny Lanning | Boston Braves | — | Release |
| May 14, 1947 | Released | Heinz Becker | Cleveland Indians | — | Release |
| May 14, 1947 | Released | Frank Crespi | St. Louis Cardinals | — | Release |
| May 14, 1947 | Released | Ed Hanyzewski | Cleveland Indians | — | Release |
| May 14, 1947 | Released | Frank McCormick | Philadelphia Phillies | — | Release |
| May 13, 1947 | Released | Lou Finney | Philadelphia Phillies | — | Release |
| May 12, 1947 | Released | Bob Carpenter | New York Giants | — | Release |
| May 12, 1947 | Released | Hugh Mulcahy | Pittsburgh Pirates | — | Release |
| May 10, 1947 | Released | Bruce Konopka | Philadelphia Athletics | — | Release |
| May 5, 1947 | Released | Mike Chartak | St. Louis Browns | — | Release |
| May 5, 1947 | Released | Tony DePhillips | Cincinnati Reds | — | Release |
| May 5, 1947 | Released | Rollie Hemsley | Philadelphia Phillies | — | Release |
| May 3, 1947 | Trade | Unnamed | Pittsburgh Pirates | Brooklyn Dodgers | $100000 |
| May 3, 1947 | Trade | Kirby Higbe | Brooklyn Dodgers | Pittsburgh Pirates | Trade |
| May 3, 1947 | Trade | Hank Behrman | Brooklyn Dodgers | Pittsburgh Pirates | Trade |
| May 3, 1947 | Trade | Cal McLish | Brooklyn Dodgers | Pittsburgh Pirates | Trade |
| May 3, 1947 | Trade | Gene Mauch | Brooklyn Dodgers | Pittsburgh Pirates | Trade |
| May 3, 1947 | Trade | Dixie Howell | Brooklyn Dodgers | Pittsburgh Pirates | Trade |
| May 3, 1947 | Trade | Al Gionfriddo | Pittsburgh Pirates | Brooklyn Dodgers | Trade |
| May 3, 1947 | Trade | Harry Walker | St. Louis Cardinals | Philadelphia Phillies | Trade |
| May 3, 1947 | Trade | Freddy Schmidt | St. Louis Cardinals | Philadelphia Phillies | Trade |
| May 3, 1947 | Trade | Ron Northey | Philadelphia Phillies | St. Louis Cardinals | Trade |
| May 1947 | Released | Harry Bright | New York Yankees | — | Release |
| Apr 29, 1947 | Released | Joe Medwick | New York Yankees | — | Release |
| Apr 28, 1947 | Released | Jimmy Wasdell | Cleveland Indians | — | Release |
| Apr 21, 1947 | Signed as free agent | Johnny Lanning | — | Boston Braves | Free agent signing |
| Apr 15, 1947 | Signed as free agent | Johnny Murphy | — | Boston Red Sox | Free agent signing (date approximate, per the source) |
| Apr 15, 1947 | Signed as free agent | Billy Sullivan | — | Pittsburgh Pirates | Free agent signing (date approximate, per the source) |
| Apr 15, 1947 | Released | Dario Lodigiani | Chicago White Sox | — | Release |
| Apr 12, 1947 | Released | Johnny Murphy | New York Yankees | — | Release |
| Apr 12, 1947 | Released | Jess Pike | New York Giants | — | Release |
| Apr 10, 1947 | Released | Charlie Letchas | Philadelphia Phillies | — | Release |
| Apr 10, 1947 | Released | Billy Sullivan | Brooklyn Dodgers | — | Release (date approximate, per the source) |
| Apr 10, 1947 | Released | Gil Torres | Washington Senators | — | Release |
| Apr 6, 1947 | Signed | Lew Burdette | — | New York Yankees | Amateur free agent signing |
| Apr 4, 1947 | Released | Dee Moore | Philadelphia Phillies | — | Release |
| Mar 31, 1947 | Released | Jack Cassini | Cincinnati Reds | — | Release |
| Mar 31, 1947 | Released | Johnny Lanning | Pittsburgh Pirates | — | Release |
| Mar 29, 1947 | Released | Johnny Humphries | Philadelphia Phillies | — | Release |
| Mar 29, 1947 | Trade | Andy Karl | Philadelphia Phillies | Boston Braves | Trade |
| Mar 29, 1947 | Trade | Don Padgett | Boston Braves | Philadelphia Phillies | Trade |
| Mar 25, 1947 | Released | Roy Hughes | Philadelphia Phillies | — | Release |
| Mar 24, 1947 | Trade | Unnamed | Philadelphia Athletics | St. Louis Cardinals | $30000 |
| Mar 15, 1947 | Signed as free agent | Bill Lee | — | Chicago Cubs | Free agent signing (date approximate, per the source) |
| Mar 4, 1947 | Trade | Roger Wolff | Washington Senators | Cleveland Indians | Trade |
| Mar 4, 1947 | Trade | George Case | Cleveland Indians | Washington Senators | Trade |
| Mar 3, 1947 | Released | Bill Burich | Philadelphia Phillies | — | Release |
| Mar 1947 | Released | Frank Carswell | Detroit Tigers | — | Release (date approximate, per the source) |
| Feb 26, 1947 | Released | Bill Lee | Boston Braves | — | Release |
| Feb 19, 1947 | Signed as free agent | Frankie Hayes | — | Boston Red Sox | Free agent signing (date approximate, per the source) |
| Feb 19, 1947 | Released | Johnny Johnson | Chicago White Sox | — | Release |
| Feb 14, 1947 | Trade | George Binks | Washington Senators | Philadelphia Athletics | Trade |
| Feb 14, 1947 | Trade | Lou Knerr | Philadelphia Athletics | Washington Senators | Trade |
| Feb 14, 1947 | Trade | Lum Harris | Philadelphia Athletics | Washington Senators | Trade |
| Feb 13, 1947 | Released | Frankie Hayes | Chicago White Sox | — | Release |
| Feb 4, 1947 | Released | Hal Trosky | Chicago White Sox | — | Release |
| Feb 1, 1947 | Signed as free agent | Hugh Mulcahy | — | Pittsburgh Pirates | Free agent signing (date approximate, per the source) |
| Feb 1947 | Trade | Eddie Malone | St. Louis Cardinals | Chicago Cubs | Trade |
| Feb 1947 | Trade | Barney Olsen | Chicago Cubs | St. Louis Cardinals | Trade |
| Jan 28, 1947 | Released | Hugh Mulcahy | Philadelphia Phillies | — | Release |
| Jan 25, 1947 | Signed as free agent | George McQuinn | — | New York Yankees | Free agent signing |
| Jan 24, 1947 | Released | Burgess Whitehead | Pittsburgh Pirates | — | Release |
| Jan 24, 1947 | Released | Ace Williams | Boston Braves | — | Release |
| Jan 9, 1947 | Released | George McQuinn | Philadelphia Athletics | — | Release |
| before the 1947 season | Signed | Herb Adams | — | Chicago White Sox | Amateur free agent signing |
| before the 1947 season | Signed | Joe Adcock | — | Cincinnati Reds | Amateur free agent signing |
| before the 1947 season | Signed as free agent | Jay Avrea | — | Cincinnati Reds | Free agent signing with first major-league team |
| before the 1947 season | Signed | Jim Baxes | — | Brooklyn Dodgers | Amateur free agent signing |
| before the 1947 season | Signed | Ralph Beard | — | St. Louis Cardinals | Amateur free agent signing |
| before the 1947 season | Signed | Gus Bell | — | Pittsburgh Pirates | Amateur free agent signing |
| before the 1947 season | Signed | Charlie Bicknell | — | Philadelphia Phillies | Amateur free agent signing |
| before the 1947 season | Signed | Babe Birrer | — | Detroit Tigers | Amateur free agent signing |
| before the 1947 season | Signed | Marv Blaylock | — | New York Giants | Amateur free agent signing |
| before the 1947 season | Signed | Dick Bokelmann | — | St. Louis Cardinals | Amateur free agent signing |
| before the 1947 season | Signed | Rocky Bridges | — | Brooklyn Dodgers | Amateur free agent signing |
| before the 1947 season | Signed | Jack Brittin | — | Philadelphia Phillies | Amateur free agent signing |
| before the 1947 season | Signed | Bubba Church | — | Philadelphia Phillies | Amateur free agent signing |
| before the 1947 season | Signed | Mel Clark | — | Philadelphia Phillies | Amateur free agent signing |
| before the 1947 season | Signed | Jim Command | — | Philadelphia Phillies | Amateur free agent signing |
| before the 1947 season | Signed | Clint Courtney | — | New York Yankees | Amateur free agent signing |
| before the 1947 season | Signed | Leo Cristante | — | Philadelphia Phillies | Amateur free agent signing |
| before the 1947 season | Signed as free agent | Bill Dietrich | — | Philadelphia Athletics | Free agent signing |
| before the 1947 season | Signed | Bob DiPietro | — | Boston Red Sox | Amateur free agent signing |
| before the 1947 season | Signed | Dick Donovan | — | Boston Braves | Amateur free agent signing |
| before the 1947 season | Signed | Walt Dropo | — | Boston Red Sox | Amateur free agent signing |
| before the 1947 season | Signed as free agent | Lou Finney | — | Philadelphia Phillies | Free agent signing |
| before the 1947 season | Signed | Harry Fisher | — | Pittsburgh Pirates | Amateur free agent signing |
| before the 1947 season | Signed | Whitey Ford | — | New York Yankees | Amateur free agent signing |
| before the 1947 season | Signed | Marion Fricano | — | Brooklyn Dodgers | Amateur free agent signing |
| before the 1947 season | Signed | Harvey Gentry | — | New York Giants | Amateur free agent signing |
| before the 1947 season | Signed | Tookie Gilbert | — | New York Giants | Amateur free agent signing |
| before the 1947 season | Signed | Mike Goliat | — | Philadelphia Phillies | Amateur free agent signing |
| before the 1947 season | Signed | Al Grunwald | — | Pittsburgh Pirates | Amateur free agent signing |
| before the 1947 season | Signed | Harvey Haddix | — | St. Louis Cardinals | Amateur free agent signing |
| before the 1947 season | Signed | Fred Hahn | — | Philadelphia Athletics | Amateur free agent signing |
| before the 1947 season | Signed | Bill Hall | — | Pittsburgh Pirates | Amateur free agent signing |
| before the 1947 season | Signed | Doug Hansen | — | Chicago Cubs | Amateur free agent signing |
| before the 1947 season | Signed | Chuck Harmon | — | St. Louis Browns | Amateur free agent signing |
| before the 1947 season | Signed | Mel Held | — | St. Louis Browns | Amateur free agent signing |
| before the 1947 season | Signed as free agent | Rollie Hemsley | — | Philadelphia Phillies | Free agent signing |
| before the 1947 season | Signed | Harley Hisner | — | Boston Red Sox | Amateur free agent signing |
| before the 1947 season | Signed | Don Hoak | — | Brooklyn Dodgers | Amateur free agent signing |
| before the 1947 season | Signed | Ray Jablonski | — | Boston Red Sox | Amateur free agent signing |
| before the 1947 season | Signed | Virgil Jester | — | Boston Braves | Amateur free agent signing |
| before the 1947 season | Signed | Stan Jok | — | New York Giants | Amateur free agent signing |
| before the 1947 season | Signed | Willie Jones | — | Philadelphia Phillies | Amateur free agent signing |
| before the 1947 season | Signed | Ray Katt | — | New York Giants | Amateur free agent signing |
| before the 1947 season | Signed as free agent | Alex Kellner | — | Philadelphia Athletics | Free agent signing |
| before the 1947 season | Signed | Chris Kitsos | — | Brooklyn Dodgers | Amateur free agent signing |
| before the 1947 season | Signed as free agent | Billy Klaus | — | Chicago Cubs | Free agent signing |
| before the 1947 season | Signed | Joe Landrum | — | Brooklyn Dodgers | Amateur free agent signing |
| before the 1947 season | Signed | Don Larsen | — | St. Louis Browns | Amateur free agent signing |
| before the 1947 season | Signed | Johnny Logan | — | Boston Braves | Amateur free agent signing |
| before the 1947 season | Signed | Bill Macdonald | — | Detroit Tigers | Amateur free agent signing |
| before the 1947 season | Signed | Dave Madison | — | New York Yankees | Amateur free agent signing |
| before the 1947 season | Signed | Bob Mahoney | — | St. Louis Cardinals | Amateur free agent signing |
| before the 1947 season | Signed | Harry Malmberg | — | Cleveland Indians | Amateur free agent signing |
| before the 1947 season | Signed | Frank Malzone | — | Boston Red Sox | Amateur free agent signing |
| before the 1947 season | Signed | Connie Marrero | — | Washington Senators | Amateur free agent signing |
| before the 1947 season | Signed | Rogelio Martinez | — | Washington Senators | Amateur free agent signing |
| before the 1947 season | Signed | Charlie Maxwell | — | Boston Red Sox | Amateur free agent signing |
| before the 1947 season | Signed | Jackie Mayo | — | Philadelphia Phillies | Amateur free agent signing |
| before the 1947 season | Signed | Windy McCall | — | Boston Red Sox | Amateur free agent signing |
| before the 1947 season | Signed | Roy McMillan | — | Cincinnati Reds | Amateur free agent signing |
| before the 1947 season | Signed as free agent | Jack Merson | — | Pittsburgh Pirates | Free agent signing |
| before the 1947 season | Signed | Mickey Micelotta | — | Philadelphia Phillies | Amateur free agent signing |
| before the 1947 season | Signed | Ed Mickelson | — | St. Louis Cardinals | Amateur free agent signing |
| before the 1947 season | Signed | Bob Milliken | — | Brooklyn Dodgers | Amateur free agent signing |
| before the 1947 season | Signed | Herb Moford | — | St. Louis Cardinals | Amateur free agent signing |
| before the 1947 season | Signed | Ray Moore | — | Brooklyn Dodgers | Amateur free agent signing |
| before the 1947 season | Signed as free agent | Julio Moreno | — | Washington Senators | Free agent signing with first major-league team |
| before the 1947 season | Signed | Joe Muir | — | Pittsburgh Pirates | Amateur free agent signing |
| before the 1947 season | Signed | Hal Naragon | — | Cleveland Indians | Amateur free agent signing |
| before the 1947 season | Signed | Les Peden | — | Chicago Cubs | Amateur free agent signing |
| before the 1947 season | Signed | Bill Pierro | — | Pittsburgh Pirates | Amateur free agent signing |
| before the 1947 season | Signed | Rance Pless | — | New York Giants | Amateur free agent signing |
| before the 1947 season | Signed | Billy Queen | — | Boston Braves | Amateur free agent signing |
| before the 1947 season | Signed | Rip Repulski | — | St. Louis Cardinals | Amateur free agent signing |
| before the 1947 season | Signed | Dusty Rhodes | — | Chicago Cubs | Amateur free agent signing |
| before the 1947 season | Signed | Cliff Ross | — | Cincinnati Reds | Amateur free agent signing |
| before the 1947 season | Signed | Bob Rush | — | Chicago Cubs | Amateur free agent signing |
| before the 1947 season | Signed | Johnny Rutherford | — | Brooklyn Dodgers | Amateur free agent signing |
| before the 1947 season | Signed | Art Schallock | — | Brooklyn Dodgers | Amateur free agent signing |
| before the 1947 season | Signed | Curt Simmons | — | Philadelphia Phillies | Amateur free agent signing |
| before the 1947 season | Released | Lou Sleater | Boston Braves | — | Release |
| before the 1947 season | Signed as free agent | Lou Sleater | — | Chicago Cubs | Free agent signing |
| before the 1947 season | Signed | Bob Spicer | — | Chicago Cubs | Amateur free agent signing |
| before the 1947 season | Signed | Chuck Stobbs | — | Boston Red Sox | Amateur free agent signing |
| before the 1947 season | Signed | Paul Stuffel | — | Philadelphia Phillies | Amateur free agent signing |
| before the 1947 season | Signed | Dick Teed | — | Brooklyn Dodgers | Amateur free agent signing |
| before the 1947 season | Signed | Bert Thiel | — | Boston Braves | Amateur free agent signing |
| before the 1947 season | Signed | Bud Thomas | — | St. Louis Browns | Amateur free agent signing |
| before the 1947 season | Signed | Kite Thomas | — | New York Yankees | Amateur free agent signing |
| before the 1947 season | Signed | Tim Thompson | — | Brooklyn Dodgers | Amateur free agent signing |
| before the 1947 season | Signed | Dixie Upright | — | Pittsburgh Pirates | Amateur free agent signing |
| before the 1947 season | Signed | Gale Wade | — | Brooklyn Dodgers | Amateur free agent signing |
| before the 1947 season | Signed as free agent | Neal Watlington | — | New York Giants | Free agent signing with first major-league team |
| before the 1947 season | Signed | Pete Whisenant | — | Boston Braves | Amateur free agent signing |
| before the 1947 season | Signed | Spider Wilhelm | — | Philadelphia Athletics | Amateur free agent signing |
| before the 1947 season | Signed | Dick Williams | — | Brooklyn Dodgers | Amateur free agent signing |
| before the 1947 season | Signed | Archie Wilson | — | New York Yankees | Amateur free agent signing |
| before the 1947 season | Signed | Len Yochim | — | Pittsburgh Pirates | Amateur free agent signing |
Every row is mapped onto the same trade / signing / release vocabulary the modern feed uses, with the era’s own type description kept on each row. Club names are the names of the day (the Boston Braves years, the Brooklyn Dodgers years), and each links to the franchise it is today. Some dates are only partially known or flagged approximate by the source; they are shown exactly as published, never completed to a fake precise day.