| Regimental number | 35 |
| Place of birth | Ballarat Victoria |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Railway Coffee Palace, Northam, Western Australia |
| Marital status | Single |
| Age at embarkation | 26 |
| Next of kin | Father, Michael O'Keeffe, 705 Pleasant Street, Ballarat, Victoria |
| Enlistment date | 18 January 1917 |
| Date of enlistment from Nominal Roll | 16 January 1917 |
| Rank on enlistment | Private |
| Unit name | MG24.30.2APR1917REINF |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 3rd Machine Gun Squadron |
| Fate | Returned to Australia 10 July 1919 |
| Family/military connections | Brother: 3192 Pte James O'KEEFE, 46th Bn, killed in action, 11 October 1917. |
| Other details | Medals: British War Medal, Victory Medal |
| Date of death | 9 September 1952 |
| Age at death | 62 |
| Place of burial | Ballarat (New) Cemetery, Victoria |