| Regimental number | 5647 |
| Place of birth | Berramangra New South Wales |
| Religion | Roman Catholic |
| Occupation | Farmer |
| Address | Berramangra via Bowning, New South Wales |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Father, Michael O'Mara, Berramangra via Bowning, New South Wales |
| Enlistment date | 29 April 1916 |
| Rank on enlistment | Private |
| Unit name | 18th Battalion, 15th Reinforcement |
| AWM Embarkation Roll number | 23/35/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A14 Euripides on 9 September 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 18th Battalion |
| Fate | Returned to Australia 19 June 1919 |