| Surname: | O'Callaghen |
| Initials: | R D |
| Rank: | Lance Corporal |
| Army Number: | 2657205 |
| Notes: | CMP. Formerly Coldstream Guards., 31/1/40 transferred to CMP. 1/11/47 Discharged. Reginald Dennis O'Callaghen. |
Decoration Record: | |
| Decoration: | General Service Medal 1918 (London Gazette: WO 100/502 Page: 41 July 20, 1940) |
| Citation: | Clasp "Palestine". Awarded as Guardsman, Coldstream Guards. |