| Trans Num | Date | Details |
| 1969.5 | 2025-10-13 | Broward Wharf Rats trade Sparky Lyle to the Cleveland Knights for Frank Howard and Ron Taylor. |
| 1964.39 | 2023-07-03 | Cleveland Knights trade Tony Oliva to the Ballwin Greys for Frank Howard. |
| 1964.1 | 2023-06-09 | Boston Blue Sox trades Frank Howard to the Ballwin Greys for Dick Stigman. |