| Regimental number | 3130 |
| Place of birth | Port Melbourne Victoria |
| Religion | Roman Catholic |
| Occupation | Teacher |
| Address | Albert Park, Victoria |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, Patrick James O'Collins, 40 Beaconsfield Parade, Albert Park, Victoria |
| Enlistment date | 13 May 1916 |
| Rank on enlistment | Private |
| Unit name | 38th Battalion, 7th Reinforcement |
| AWM Embarkation Roll number | 23/55/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A70 Ballarat on 19 February 1917 |
| Regimental number from Nominal Roll | Commissioned |
| Rank from Nominal Roll | Lieutenant |
| Unit from Nominal Roll | 38th Battalion |
| Fate | Discharged 28 July 1918 |