| Regimental number | 58675 |
| Place of birth | Casino, New South Wales |
| Other Names | William Wallace |
| Religion | Presbyterian |
| Occupation | Motor driver |
| Address | Wynyard Square, New South Wales |
| Marital status | Single |
| Age at embarkation | 21 |
| Height | 5' 8.5" |
| Weight | 130 lbs |
| Next of kin | Father, T Clark, North Street, Casino, New South Wales |
| Previous military service | Served for 5 weeks in the 18th Bn, AIF: discharged as medically unfit. |
| Enlistment date | |
| Place of enlistment | Sydney, New South Wales |
| Rank on enlistment | Private |
| Unit name | 1st to 15th (NSW) General Reinforcements |
| AWM Embarkation Roll number | 23/111/5 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board SS Feldmarschall on |
| Regimental number from Nominal Roll | 58674 |
| Rank from Nominal Roll | Driver |
| Unit from Nominal Roll | 3rd Mechanical Transport Company |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
War service: Western Front Commenced return to Australia on board HT 'Ascanius', 23 September 1919; disembarked Sydney, 10 November 1919; discharged (termination of period of enlistment), Sydney, 14 January 1920. Medals: British War Medal, Victory Medal |
| Sources | NAA: B2455, CLARK William Wallace Stocks |