| Regimental number | 4422 |
| Place of birth | Sydney New South Wales |
| Religion | Roman Catholic |
| Occupation | Tram driver |
| Address | 'Yosemite', Willoughby Road, North Sydney, New South Wales |
| Marital status | Married |
| Age at embarkation | 27 |
| Next of kin | Wife, Mrs Mary Mahony, 'Yosemite', Willoughby Road, North Sydney, New South Wales |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | No 3 Australian General Hospital |
| AWM Embarkation Roll number | 26/67/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board RMS Mooltan on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 4th Division Sanitation Section |
| Fate | Returned to Australia |
| Family/military connections | Brother: 4169 Pte Henry John MAHONY, 19th Bn, killed in action, 14 November 1916. |
| Other details |
Medals: 1914-15 Star, British War Medal, Victory Medal |
| Date of death | |
| Place of burial | Macquarie Park Cemetery |