| Regimental number | 3443 |
| Religion | Church of England |
| Occupation | Clerk |
| Address | 221 Breen Street, Bendigo, Victoria |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Father, H O'Donahoo, 221 Breen Street, Bendigo, Victoria |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 7th Battalion, 11th Reinforcement |
| AWM Embarkation Roll number | 23/24/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A71 Nestor on |
| Rank from Nominal Roll | Corporal |
| Unit from Nominal Roll | 7th Battalion |
| Fate | Returned to Australia |
| Miscellaneous details (Nominal Roll) | *Spelt Alan Kemp O'Donahoo on NR |
| Miscellaneous information from cemetery records | Plaque in Victorian Garden of Remembrance |
| Family/military connections | Brothers: 1399 Robert Raymond O'DONAHOO, 14th Bn, returned to Australia, 8 May 1918; 1577 Pte Arthur Herbert Graham O'DONAHOO, 6th Bn, killed in action, 10 August 1915. |
| Other details |
Medals: 1914-15 Star, British War Medal, Victory Medal |
| Date of death |