| Regimental number | 4877 |
| Religion | Church of England |
| Occupation | Farmer |
| Address | Loch, South Gippsland, Victoria |
| Marital status | Single |
| Age at embarkation | 33 |
| Next of kin | Brother, F C O'Rourke, c/o D Harris, Lochi, South Gippsland, Victoria |
| Enlistment date | 29 September 1915 |
| Date of enlistment from Nominal Roll | 6 January 1916 |
| Rank on enlistment | Private |
| Unit name | 6th Battalion, 15th Reinforcement |
| AWM Embarkation Roll number | 23/23/4 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A18 Wiltshire on 7 March 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 7th Battalion |
| Fate | Returned to Australia 8 May 1919 |
| Miscellaneous details (Nominal Roll) | *Spelt Alexander Denis O'Rourke on NR |
