| Regimental number | 2331 |
| Place of birth | Dunoon New South Wales |
| Religion | Church of England |
| Occupation | Blacksmith |
| Address | Dorroughby, New South Wales |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, John Henry Armstrong, Dorroughby, New South Wales |
| Enlistment date | 4 May 1915 |
| Date of enlistment from Nominal Roll | 4 May 1915 |
| Rank on enlistment | Private |
| Unit name | 9th Battalion, 7th Reinforcement |
| AWM Embarkation Roll number | 23/26/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A9 Shropshire on 20 August 1915 |
| Rank from Nominal Roll | Driver |
| Unit from Nominal Roll | 9th Battalion |
| Fate | Returned to Australia 16 June 1919 |