| Regimental number | ... |
| Religion | Presbyterian |
| Occupation | Clerical |
| Address | Private Account Commonwealth Bank Collins Street, Melbourne, Victoria |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, Jas H Mackay, Dorcas Street, South Melbourne, Victoria |
| Enlistment date | 25 November 1915 |
| Rank on enlistment | 2nd Lieutenant |
| Unit name | 14th Battalion, 12th Reinforcement |
| AWM Embarkation Roll number | 23/31/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A40 Ceramic on 23 November 1915 |
| Regimental number from Nominal Roll | Commissioned |
| Rank from Nominal Roll | Captain |
| Unit from Nominal Roll | 14th Battalion |
| Fate | Returned to Australia 1 May 1919 |