| Regimental number | 1855 |
| Place of birth | Launceston Tasmania |
| Religion | Roman Catholic |
| Occupation | Tailor |
| Address | 122 Margaret Street, Lauceston, Tasmania |
| Marital status | Single |
| Age at embarkation | 26 |
| Next of kin | Father, James O'Reilly, 122 Margaret Street, Launceston, Tasmania |
| Enlistment date | 12 January 1915 |
| Rank on enlistment | Private |
| Unit name | 12th Battalion, 4th Reinforcement |
| AWM Embarkation Roll number | 23/29/2 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A8 Argyllshire on 19 April 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 12th Battalion |
| Fate | Returned to Australia 8 November 1918 |
