| Regimental number | 10/2451 |
| Address | c/o J Stannard, Johnsonville, Wellington |
| Marital status | Single |
| Next of kin | Brother, A McMillan, Signal Adjuster, Frankton Junction |
| Rank on embarkation | Private |
| Enlistment status | Volunteer |
| Unit name | Samoan Advance Party, Wellington Infantry Battalion |
| Embarkation details | Unit embarked from Wellington on |
| Final rank | Lance Corporal |
| Final unit | No 1 Company, New Zealand Machine Gun Corps |
| Fate | Killed in Action |
| Age at death from cemetery records | 28 |
| Place of burial | No known grave |
| Commemoration details | Messines Ridge (New Zealand) Memorial, Messines Ridge British Cemetery, Belgium |
| Miscellaneous information from cemetery records | Parents: Archibald and Marjory McMillan. Native of Wellington. Also served in Samoa and Gallipoli |
| Other details |
War service: Samoa, Egypt, Gallipoli, Western Front |
| Miscellaneous details | Nominal Roll Vol. 1: Wellington Infantry Batln/Samoan Adv & Fifth |