| Regimental number | 117 |
| Place of birth | Midland Junction Western Australia |
| Religion | Roman Catholic |
| Occupation | Fitter and machinist |
| Address | York Road, Midland Junction, Western Australia |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Father, John O'Mara, York Road, Midland Junction, Western Australia |
| Enlistment date | 11 September 1914 |
| Rank on enlistment | Private |
| Unit name | 16th Battalion, C Company |
| AWM Embarkation Roll number | 23/33/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A40 Ceramic on 22 December 1914 |
| Rank from Nominal Roll | Corporal |
| Unit from Nominal Roll | 16th Battalion |
| Fate | Discharged 26 February 1919 |
| Date of death | 7 March 1969 |
| Place of burial | Midland Cemetery |