| Regimental number | 6942 |
| Religion | Roman Catholic |
| Occupation | Farm labourer |
| Address | Kerang, Victoria |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Brother, Joseph O'Hallorhan, Kerang, Victoria |
| Enlistment date | 19 March 1917 |
| Rank on enlistment | Private |
| Unit name | 23rd Battalion, 19th Reinforcement |
| AWM Embarkation Roll number | 23/40/5 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A11 Ascanius on 11 May 1917 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 23rd Battalion |
| Fate | Returned to Australia 22 July 1919 |
