| Regimental number | 473 |
| Religion | Roman Catholic |
| Occupation | Chemist |
| Address | 233 Albert Street, East Melbourne, Victoria |
| Marital status | Widower |
| Age at embarkation | 33 |
| Next of kin | Father, R J O'Keefe, 233 Albert Street, East Melbourne, Victoria |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 25th Battalion, D Company |
| AWM Embarkation Roll number | 23/42/1 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A60 Aeneas on |
| Rank from Nominal Roll | Sergeant |
| Unit from Nominal Roll | 25th Battalion |
| Fate | Killed in Action |
| Miscellaneous details (Nominal Roll) | *noted as Thomas on NR |
| Age at death from cemetery records | 37 |
| Place of burial | Crucifix Corner Cemetery (Plot IX, Row B, Grave No. 21), Villers-Bretonneux, France |
| Panel number, Roll of Honour, Australian War Memorial | 105 |
| Miscellaneous information from cemetery records | Parents: Richard John and Margaret Teresa O'KEEFFE, 44 Cotham Street, East Melbourne, Victoria. Native of Tasmania |