| Regimental number | 7246 |
| Place of birth | Cork, Ireland |
| Religion | Presbyterian |
| Occupation | Auto engineer |
| Marital status | Single |
| Age at embarkation | 34 |
| Next of kin | Father, A L McMillan, 1 Rosebury Terrace, Kelvin Bridge, Glasgow, Scotland |
| Enlistment date | 9 July 1915 |
| Place of enlistment | Melbourne, Victoria |
| Rank on enlistment | Cleaner |
| Unit name | Company 300, Reinforcement 9 |
| AWM Embarkation Roll number | 25/99/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A16 Star Of Victoria on 10 September 1915 |
| Regimental number from Nominal Roll | Commissioned |
| Rank from Nominal Roll | Lieutenant |
| Unit from Nominal Roll | 3rd Motor Transport Company |
| Fate | Discharged 3 November 1919 |
| Sources | NAA: B2455, McMILLAN Archibald Lewis |
