SPB In Season Free Agency -- SPB-1937
Regular season
| Transactions |
| Seq | Date | Team | Player | Type |
| 0 | 4/22/1937 | NYM | Burkart | Signed |
| 0 | 4/22/1937 | NYM | Melillo | Released |
| 0 | 5/1/1937 | SFS | Archer | Released |
| 0 | 5/1/1937 | SFS | Strickland | Signed |
| 0 | 6/7/1937 | MGB | Allen,B | Signed |
| 0 | 6/7/1937 | MGB | Saltzgaver | Released |
| 0 | 6/22/1937 | BBB | Andrus | Released |
| 0 | 6/22/1937 | BBB | Andrus | Signed |
| 0 | 6/22/1937 | BBB | Morris | Signed |
| 0 | 6/22/1937 | WBS | Ryan | Released |
| 0 | 7/1/1937 | LVC | Jorgens | Signed |
| 0 | 7/1/1937 | LVC | Vance | Released |
| 0 | 7/19/1937 | LVC | Gonzales | Released |
| 0 | 7/19/1937 | LVC | White,A | Signed |
| 0 | 7/22/1937 | BBB | Clark | Signed |
| 0 | 7/22/1937 | BBB | Jorgensen | Released |
| 0 | 8/22/1937 | SFS | Mele | Signed |
| 0 | 8/22/1937 | SFS | Stephenson | Released |
| 0 | 9/6/1937 | SFS | Bolton | Released |
| 0 | 9/6/1937 | SFS | Saltzgaver | Signed |
| 0 | 9/13/1937 | FRK | Barna | Released |
| 0 | 9/13/1937 | FRK | Ryan | Signed |
| 0 | 9/15/1937 | MGB | Fink | Released |
| 0 | 9/15/1937 | MGB | Hatter | Signed |
| 0 | 9/20/1937 | SFS | Alexander | Signed |
| 0 | 9/20/1937 | SFS | Mele | Released |
| 0 | 9/27/1937 | BRK | Browne | Signed |
| 0 | 9/27/1937 | BRK | Malinosky | Released |
| 0 | 9/27/1937 | WBS | Barna | Signed |
| 0 | 9/27/1937 | WBS | Browne | Released |
| 0 | 9/27/1937 | WBS | Goslin | Released |
| 0 | 9/27/1937 | WBS | Haas,M | Released |
| 0 | 9/27/1937 | WBS | Jungels | Signed |
| 0 | 9/27/1937 | WBS | Vance | Signed |
| 0 | 10/6/1937 | FRK | Becker | Released |
| 0 | 10/6/1937 | FRK | Cohen | Released |
| 0 | 10/6/1937 | FRK | Garbark | Signed |
| 0 | 10/6/1937 | FRK | Gick | Signed |
| 0 | 10/6/1937 | FRK | Goslin | Signed |
| 0 | 10/6/1937 | FRK | Hennessey | Released |
| 0 | 10/6/1937 | FRK | Hennessey | Signed |
| 0 | 10/6/1937 | FRK | Lipscomb | Released |