| Trans Num | Date | Details |
| 1932.2 | 2024-11-17 | Holyoke Purple Knights trade Mel Harder to the Cooperstown Giants for Wally Berger. |
| 1931.4 | 2024-10-12 | Holyoke Purple Knights trade Bill Terry, Eddie Rommel, and Larry French to the Cooperstown Giants for Bruce Campbell, Charlie Grimm, Mel Harder, and COL 1931 #2. |