Below arranged alphabetically are those men known to have served in 4th Battalion Command, Cork No. 1 Brigade as of 11 July 1921. The information is transcribed from original scans of the IRA Nominal Rolls at the Military Service Pensions Collection (MA/MSPC/RO/31) which can be accessed online via The Military Archives website here. The addresses were those known in the 1930s.
| NAME | RANK | ADDRESS |
| Ahern, Joseph | Officer Commanding | Washington Street, Cork |
| Whelan, Patrick | Vice Officer-Commanding | Islandbridge Barracks, Dublin |
| Cronin, Miceal | Adjutant | 1906 Pacific Avenue, Spokane, Washington, USA |
| O’Connell, Jack | Quartermaster | Collins Barracks, Cork |
| Twomey, Matthew | Intelligence | Magazine Road, Cork |
| O’Shea, Thomas | Engineer | 590 East 137 Street, New York, USA |
| Kiely, Joseph | Signals | 15 Adderly Road, Harrow Weald, Middlesex, England |
| Barry, John F. | Transport | Harbour Row, Cobh, Co. Cork |
| Buckley, T. | Training | Address Unknown |
| Kilty, Jack | Medical | Cobh, Co. Cork |
| Hourihan, Thomas | Police | Kinsale, Co. Cork |
