Numbers in this table represent the number of minutes played at each position. ST represents special teams positions other than K or P.
| Date | Transaction |
| 02-28-2051 | Harry Hamilton has retired from the Minnesota Mammoths. |
| 10-08-2046 | The Minnesota Mammoths have moved Harry Hamilton to the active roster. |
| 10-08-2046 | The Minnesota Mammoths have acquired Harry Hamilton from the waiver wire. |
| 09-30-2046 | The Brooklyn Bandof Brothers have moved Rip Torn to the active roster. The Brooklyn Bandof Brothers have moved Jim Grant to the inactive roster. |
| 09-30-2046 | The Brooklyn Bandof Brothers have waived Harry Hamilton. |
| 09-12-2044 | The Philadelphia Inovians have acquired Harry Hamilton from the waiver wire. |
| 09-11-2044 | The Cleveland Ironmen have automatically waived Harry Hamilton to comply with the 53-man roster limit. |
| 09-05-2044 | The Cleveland Ironmen have moved Chuck Zaleski to the active roster. The Cleveland Ironmen have moved Harry Hamilton to the inactive roster. |
| 08-22-2044 | The Cleveland Ironmen have moved Harry Hamilton to the active roster. The Cleveland Ironmen have moved Yale Lary to the inactive roster. |
| 08-15-2044 | The Cleveland Ironmen have moved Ken Times and Yale Lary to the active roster. The Cleveland Ironmen have moved Harry Hamilton and Mike Eischeid to the inactive roster. |
| 12-28-2043 | The Cleveland Ironmen have moved Harry Hamilton to the active roster. The Cleveland Ironmen have moved Yale Lary to the inactive roster. |
| 12-21-2043 | The Cleveland Ironmen have moved Mike Eischeid to the active roster. The Cleveland Ironmen have moved Harry Hamilton to the inactive roster. |
| 11-09-2043 | The Cleveland Ironmen have moved Stevie Ray Vaughan, Don Horn, Ed McCulloch, and Harry Hamilton to the active roster. The Cleveland Ironmen have moved Dick Jamieson, Herbie Bigelow, Andy Devine, and Jim Finks to the inactive roster. |
| 11-02-2043 | The Cleveland Ironmen have moved Dick Jamieson to the active roster. The Cleveland Ironmen have moved Harry Hamilton to the inactive roster. |
| 09-21-2043 | The Cleveland Ironmen have moved Harry Hamilton and Boot Scootin' Booty to the active roster. The Cleveland Ironmen have moved Ken Matheson and Rory Calhoun to the inactive roster. |
| 09-07-2043 | The Cleveland Ironmen have changed Harry Unrein's name to Harry Hamilton. |
| 09-07-2043 | The Cleveland Ironmen have moved Richie St. Louis, Bruce Ruhl, Nemiah Wilson, and Rory Calhoun to the active roster. The Cleveland Ironmen have moved Harry Unrein, Pettis Ross, Boot Scootin' Booty, and Bob Wilson to the inactive roster. |
| 08-10-2043 | The Cleveland Ironmen have moved Ricky Hunley, Natu Jones, Harry Unrein, Boot Scootin' Booty, Steve Keith, Ken Matheson, Bob Wilson, and Jerry Jordan to the active roster. The Cleveland Ironmen have moved George Hoey, Marlin McKeever, Bruce Ruhl, Nemiah Wilson, Chuck Zaleski, Rory Calhoun, Rex Bentley, and Speedy Dunlap to the inactive roster. |
| 01-26-2043 | The Cleveland Ironmen have acquired Harry Unrein from the waiver wire; however, as he was traded or waived after the deadline and has not spent a full week on the wire, he will not be eligible for the postseason. |
| 01-26-2043 | The Cleveland Ironmen have waived Harry Unrein. |
| 01-26-2043 | The Cleveland Ironmen have acquired Harry Unrein from the waiver wire. |
| 08-17-2042 | The Phoenix Solars have waived Harry Unrein. |
Safety