| Regimental number | 3571 |
| Place of birth | Tennyson New South Wales |
| Religion | Roman Catholic |
| Occupation | Orchardist |
| Address | The Slopes, Kurrajong, via North Richmond, New South Wales |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Brother, J J McMahon, The Slopes, Kurrajong, via North Richmond, New South Wales |
| Enlistment date | 9 September 1915 |
| Rank on enlistment | Private |
| Unit name | 19th Battalion, 8th Reinforcement |
| AWM Embarkation Roll number | 23/36/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A35 Berrima on 12 December 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 2nd Battalion |
| Fate | Returned to Australia 21 March 1919 |
