| Regimental number | 693 |
| Place of birth | Maitland New South Wales |
| Religion | Church of England |
| Occupation | Signalman |
| Address | 66 Railway Road, St Peters, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Mother, Mrs S E Wallace, 66 Railway Road, St Peters, Sydney, New South Wales |
| Enlistment date | 24 February 1915 |
| Rank on enlistment | Private |
| Unit name | 19th Battalion, B Company |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT Ceramic on 25 June 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 18th Battalion |
| Fate | Returned to Australia 9 March 1919 |
| Miscellaneous details (Nominal Roll) | *Spelt Roy Stuart Wallace on NR |
| Date of death | 8 February 1965 |
| Place of burial | Field of Mars Cemetery |
