| Regimental number | 7440 |
| Date of birth | |
| Place of birth | Deniliquin, New South Wales |
| Religion | Presbyterian |
| Occupation | Grazier |
| Address | Deniliquin, New South Wales |
| Marital status | Single |
| Age at embarkation | 19 |
| Height | 5' 9.5" |
| Weight | 125 lbs |
| Next of kin | Father, J Armstrong, Kinlock, Deniliquin, New South Wales |
| Previous military service | Served for 1 year in the Citizen Military Forces. |
| Enlistment date | |
| Place of enlistment | Seymour, Victoria |
| Rank on enlistment | Private |
| Unit name | 6th Battalion, 25th Reinforcement |
| AWM Embarkation Roll number | 23/23/6 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A32 Themistocles on |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | 4th Field Artillery Brigade |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
War service: Western Front Commenced return to Australia on board HT 'Ypiringa', 15 May 1919; disembarked Melbourne, 5 July 1919; discharged (termination of period of enlistment), Melbourne, 4 August 1919. Medals: British War Medal, Victory Medal |
| Date of death | |
| Age at death | 23 |
| Place of burial | Deniliquin Cemetery, New South Wales |
| Sources | NAA: B2455, ARMSTRONG Stewart Hay |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
