| Regimental number | 211 |
| Place of birth | Melbourne Victoria |
| Religion | Roman Catholic |
| Occupation | Salesman |
| Address | Crawford Road, Maylands, Western Australia |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Brother, J S O'Reilly, Crawford Road, Maylands, Western Australia |
| Enlistment date | 9 September 1914 |
| Date of enlistment from Nominal Roll | 17 August 1914 |
| Rank on enlistment | Private |
| Unit name | 11th Battalion, B Company |
| AWM Embarkation Roll number | 23/28/1 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A7 Medic on 31 October 1914 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 1st Division Headquarters |
| Fate | Returned to Australia 23 October 1918 |
