| Regimental number | 4150 |
| Place of birth | Carnoustle Scotland |
| Religion | Presbyterian |
| Occupation | Professional golfer |
| Address | Spencer Street, Rose Bay, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, Mr Robert Clark, Spencer Street, Rose Bay, Sydney, New South Wales |
| Enlistment date | 20 August 1915 |
| Rank on enlistment | Private |
| Unit name | 2nd Battalion, 13th Reinforcement |
| AWM Embarkation Roll number | 23/19/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A6 Aeneas on 20 December 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 3rd Battalion |
| Fate | Returned to Australia 28 March 1919 |
| Family/military connections | Brother: 4152 Lance Sergeant Robert CLARK, 54th Bn, died of wounds, 16 October 1917. |
| Date of death | 19 June 1959 |
| Place of burial | Northern Suburbs Crematorium |