| Regimental number | 157 |
| Place of birth | Geelong Victoria |
| Religion | Church of England |
| Occupation | Blacksmith |
| Address | 14 Arthur Street, South Yarra, Victoria |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Mother, Mrs Mary Wallace, 14 Arthur Street, South Yarra, Victoria |
| Enlistment date | 16 March 1915 |
| Date of enlistment from Nominal Roll | 12 May 1915 |
| Rank on enlistment | Able Bodied Driver |
| Unit name | 1st Royal Australian Naval Bridging Train |
| AWM Embarkation Roll number | MIS34.12.1.RANBT1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board A39 Port Macquarie on 4 June 1915 |
| Rank from Nominal Roll | Driver |
| Unit from Nominal Roll | 1st Divisional Ammunition Column |
| Fate | Returned to Australia 6 June 1918 |
| Miscellaneous details (Nominal Roll) | *Spelt Roy Wallace on NR |
| Family/military connections | Brother: 1190 Pte John WALLACE, 14th Battalion, effective abroad (still overseas). |