| Regimental number | 1577 |
| Place of birth | Kangaroo Flat Victoria |
| Religion | Church of England |
| Occupation | Station hand |
| Address | Breen Street, Bendigo, Victoria |
| Marital status | Single |
| Age at embarkation | 28 |
| Next of kin | Father, H G O'Donahoo, Breen Street, Bendigo, Victoria |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 6th Battalion, 3rd Reinforcement |
| AWM Embarkation Roll number | 23/23/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A54 Runic on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 6th Battalion |
| Fate | Killed in Action |
| Age at death from cemetery records | 29 |
| Place of burial | Shrapnel Valley Cemetery (Plot II, Row A, Grave No. 63), Gallipoli, Turkey |
| Panel number, Roll of Honour, Australian War Memorial | 47 |
| Miscellaneous information from cemetery records | Parents: Herbert and Agnes Ochterlony O'DONAHOO, 22 Breen Street, Bendigo |
| Family/military connections | Brothers: 3443 Corporal Allen Kemp O'DONAHOO, 7th Bn, returned to Australia, 12 March 1918; ; 1399 Pte Robert Raymond O'DONAHOO, 14th Bn, returned to Australia, 8 May 1918. |
| Other details |
War service: Egypt, Gallipoli Medals: 1914-15 Star, British War Medal, Victory Medal |