| Regimental number | 351 |
| Place of birth | Perth Western Australia |
| Religion | Church of England |
| Occupation | Clerk and musician |
| Address | Blencowe Street, Leederville, Western Australia |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, Arthur George O'Keefe, 22 Blencowe Street, Leederville, Western Australia |
| Enlistment date | 5 April 1916 |
| Date of enlistment from Nominal Roll | 10 April 1916 |
| Rank on enlistment | Private |
| Unit name | 44th Battalion, B Company |
| AWM Embarkation Roll number | 23/61/1 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A29 Suevic on 6 June 1916 |
| Rank from Nominal Roll | Corporal |
| Unit from Nominal Roll | 44th Battalion |
| Fate | Effective abroad (still overseas) |
