| Regimental number | 9920 |
| Place of birth | Sydney New South Wales |
| Religion | Roman Catholic |
| Occupation | Clerk |
| Address | 'Warawee', Wudgong Street, Mosman, New South Wales |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Father, J P MacMahon, 'Warawee', Wudgong Street, Mosman, New South Wales |
| Enlistment date | 27 January 1916 |
| Rank on enlistment | Driver |
| Unit name | Divisional Train Army Service Corps 4 |
| AWM Embarkation Roll number | 25/14/4 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A10 Karoo on 5 May 1916 |
| Rank from Nominal Roll | Driver |
| Unit from Nominal Roll | 2nd Division Train |
| Fate | Returned to Australia 1 July 1919 |
| Date of death | 8 August 1956 |
| Place of burial | Northern Suburbs Crematorium |
