| Date | Transaction |
| 02-28-2078 | Bob Spelin has retired from football. |
| 08-22-2077 | The Cincinnati Hawks have waived Bob Spelin. |
| 09-25-2072 | Bob Spelin of the Cincinnati Hawks is injured with a mild concussion and is expected to be out for approximately 2 days. |
| 09-05-2072 | The Cincinnati Hawks have moved Pete Estes, Ray Chiaverini, Elmore Cameron, Paul Harris, and Bob Spelin to the active roster. The Cincinnati Hawks have moved Belf Smith, Reuben King, and Willie Kieksey to the inactive roster. |
| 08-08-2072 | The Cincinnati Hawks have moved Belf Smith, Troy Marshall, Willie Kieksey, and Nolan Harris to the active roster. The Cincinnati Hawks have moved John Walsh, Elmore Cameron, Paul Harris, Bob Spelin, and Charles Diem to the inactive roster. |
| 09-06-2071 | The Cincinnati Hawks have moved Earl Love, Pete Estes, James Hagood, Paul Harris, and Bob Spelin to the active roster. The Cincinnati Hawks have moved Ray Chiaverini, Walt Yoho, and Mike Thomas to the inactive roster. |
| 05-03-2071 | The Cincinnati Hawks have moved Audray Terry and Reuben King to the active roster. The Cincinnati Hawks have moved Bob Spelin, James Hagood, Pete Estes, and James Hauser to the inactive roster. |
| 11-23-2070 | The Cincinnati Hawks have moved Bob Spelin, Dave Green, and Paul Harris to the active roster. The Cincinnati Hawks have moved James Hilpert, Morgan Greene, and Walt Yoho to the inactive roster. |
| 11-10-2070 | The Cincinnati Hawks have moved Earl Love, Dave Green, and Walt Yoho to the active roster. The Cincinnati Hawks have moved Ralph Amsler, Paul Harris, and Bob Spelin to the inactive roster. |
| 11-09-2070 | Bob Spelin of the Cincinnati Hawks is injured with an ankle ligament sprain and is expected to be out for approximately 12 days. |
| 08-17-2070 | The Cincinnati Hawks have moved James Hilpert and Bob Spelin to the active roster. |
| 04-27-2070 | The Cincinnati Hawks have moved Hubert Holler and Bob Spelin to the inactive roster. |
| 09-02-2069 | The Cincinnati Hawks have moved Pete Estes, Bob Spelin, James Hagood, and Hubert Holler to the active roster. The Cincinnati Hawks have moved Walt Yoho to the inactive roster. |
| 08-05-2069 | The Cincinnati Hawks have moved Walt Yoho and Mike Thomas to the active roster. The Cincinnati Hawks have moved Pete Estes, James Hagood, Hubert Holler, and Bob Spelin to the inactive roster. |
| 09-02-2068 | The Cincinnati Hawks have moved Hubert Holler, Bob Spelin, Willie Lucas, and Pete Estes to the active roster. The Cincinnati Hawks have moved Frank Caranci and Mike Thomas to the inactive roster. |
| 04-29-2068 | The Cincinnati Hawks have moved James Hagood and Mike Thomas to the active roster. The Cincinnati Hawks have moved Pete Estes, Hubert Holler, Bob Spelin, and Willie Lucas to the inactive roster. |
| 09-05-2067 | The Cincinnati Hawks have moved James Hilpert, Morgan Greene, Ralph Amsler, Bob Farmer, Hubert Holler, Bob Spelin, Charles Diem, and Pete Estes to the active roster. The Cincinnati Hawks have moved John Munn, James Hagood, Johnny Brumfield, and Robin Farr to the inactive roster. |
| 05-01-2067 | The Cincinnati Hawks have moved Hubert Holler and Bob Spelin to the inactive roster. |
| 01-11-2066 | The Cincinnati Pirates have moved Bob Spelin to the active roster. |
| 01-04-2066 | The Cincinnati Pirates have moved Bubba Husmann, Rod Lauer, Hubert Holler, Bob Farmer, and Charles Diem to the active roster. The Cincinnati Pirates have moved Ralph Amsler, Robin Farr, Ike Buffington, Bob Spelin, and Willie Lucas to the inactive roster. |
| 12-21-2065 | The Cincinnati Pirates have moved Ralph Amsler, Robin Farr, Ike Buffington, and Bob Spelin to the active roster. The Cincinnati Pirates have moved Rod Lauer, Hubert Holler, Bob Farmer, and Charles Diem to the inactive roster. |
| 12-14-2065 | The Cincinnati Pirates have moved Ronald Watson to the active roster. The Cincinnati Pirates have moved Bob Spelin to the inactive roster. |
| 12-14-2065 | The Cincinnati Pirates have moved Bob Spelin to the active roster. The Cincinnati Pirates have moved Ronald Watson to the inactive roster. |
| 09-06-2065 | The Cincinnati Pirates have moved Ronald Watson to the active roster. The Cincinnati Pirates have moved Bob Spelin to the inactive roster. |
| 08-10-2065 | The Cincinnati Pirates have changed Lorenzo Snelling's name to Bob Spelin. |
| 08-10-2065 | The Cincinnati Pirates have moved Lorenzo Snelling and Willie Lucas to the active roster. The Cincinnati Pirates have moved Vern Gantenbein and Maury Polisky to the inactive roster. |
Defensive End