| Regimental number | 360 |
| Date of birth | 1882 |
| Place of birth | Uralla, New South Wales |
| Religion | Presbyterian |
| Occupation | Stockman |
| Address | Uralla, New South Wales |
| Marital status | Single |
| Age at embarkation | 29 |
| Next of kin | Lidia Bacon McMillan, Uralla, New South Wales |
| Enlistment date | 22 August 1914 |
| Rank on enlistment | Private |
| Unit name | 2nd Light Horse Regiment, B Squadron |
| AWM Embarkation Roll number | 10/7/1 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board Transport A15 Star of England on 24 September 1914 |
| Rank from Nominal Roll | Corporal |
| Unit from Nominal Roll | Army Provost Corps |
| Fate | Returned to Australia 23 December 1918 |
| Discharge date | 16 April 1919 |
| Other details | Son of Alexander and Lydia (nee Baker) McMillan |
| Date of death | 29 October 1938 - Brisbane |
| Age at death | 56 |
| Place of burial | South Brisbane Cemetery, Brisbane, Queensland |