| Date of birth | |
| Place of birth | Melbourne, Victoria |
| Religion | Protestant |
| Occupation | Shipping manager |
| Address | Victoria Parade, Devonport West, Tasmania |
| Marital status | Married |
| Age at embarkation | 56 |
| Next of kin | Daughter, Mabel Clarke, Victoria Parade, Devonport West, Tasmania |
| Enlistment date | |
| Rank on enlistment | Lieutenant-Colonel |
| Unit name | 12th Battalion, Headquarters |
| AWM Embarkation Roll number | 23/29/1 |
| Embarkation details | Unit embarked from Hobart, Tasmania, on board HMAT A2 Geelong on |
| Rank from Nominal Roll | Lieutenant-Colonel |
| Unit from Nominal Roll | 12th Battalion |
| Fate | Killed in Action |
| Place of death or wounding | Gallipoli, Turkey |
| Date of death | |
| Age at death | 57 |
| Panel number, Roll of Honour, Australian War Memorial | 65 |
| Miscellaneous information from cemetery records | Parents: Joseph Johnston and Charlotte Elizabeth CLARKE, Wife: Beatrice Fox CLARKE, Holebrook, Tasmania. Native of Melbourne |
| Other details |
War service: Egypt, Gallipoli Medals: 1914-15 Star, British War Medal, Victory Medal |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
