| Regimental number | 1721 |
| Place of birth | Sydney New South Wales |
| Religion | Church of England |
| Occupation | Labourer |
| Address | c/o P Brown, Avenue Street, Granville, New South Wales |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Brother, Harry Clarke, Parramatta near Sydney, New South Wales |
| Enlistment date | 21 December 1914 |
| Rank on enlistment | Private |
| Unit name | 3rd Battalion, 4th Reinforcement |
| AWM Embarkation Roll number | 23/20/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A9 Shropshire on 17 March 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 55th Battalion |
| Fate | Returned to Australia 12 March 1918 |
| Date of death | 15 April 1957 |
| Place of burial | Botany Cemetery |