| Regimental number | 18581 |
| Occupation | Schoolmaster |
| Next of kin | Father, Walter Armstrong, Main Street, Greytown |
| Rank on embarkation | 2nd Lieutenant |
| Unit name | New Zealand Expeditionary Force, New Zealand Rifle Brigade, 10th Reinforcements to 3rd Battalion, G Company |
| Embarkation details | Unit embarked from Wellington on |
| The Infantry component of the 19th Reinforcements left New Zealand on board two ships, 'Maunganui' and 'Tahiti'. It is not possible from the Nominal Rolls to determine on which ship an individual embarked. Harbour records indicate that the actual date of sailing was 16 November 1916. | |
| Final rank | Lieutenant |
| Final unit | New Zealand Rifle Brigade |
| Fate | |
| Age at death from cemetery records | 25 |
| Place of burial | No known grave |
| Commemoration details | Grevillers (New Zealand) Memorial, France |
| Miscellaneous information from cemetery records | Parents: Walter and Ruth Armstrong, Greytown, Wellington |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Sources | Nominal Roll Vol. 2: Roll 45, p. 28 |