| Regimental number | 2634 |
| Place of birth | Young, New South Wales |
| Religion | Presbyterian |
| Occupation | Saddler |
| Address | 104 Havannah Street, Bathurst, New South Wales |
| Marital status | Single |
| Age at embarkation | 18.10 |
| Height | 5' 7" |
| Weight | 130 lbs |
| Next of kin | Father, Duncan Clark, 104 Havannah Street, Bathurst, New South Wales |
| Previous military service | Served in the 41st Infantry, Bathurst, Citizen Military Forces. |
| Enlistment date | |
| Place of enlistment | Bathurst, New South Wales |
| Rank on enlistment | Private |
| Unit name | 54th Battalion, 6th Reinforcement |
| AWM Embarkation Roll number | 23/71/4 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A40 Ceramic on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 54th Battalion |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
War service: Western Front Commenced return to Australia on board HT 'Benalla', 25 August 1917; discharged (medically unfit: wound, compound fracture, left tibia), Sydney, 26 January 1918. Medals: British War Medal, Victory Medal |
| Sources | NAA: B2455, CLARK William |