| Regimental number | 3277 |
| Religion | Presbyterian |
| Occupation | Farmer |
| Address | Thanes Creek via Warwick, Queensland |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, James Smith Clarkson, Thanes Creek via Warwick, Queensland |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 41st Battalion, 8th Reinforcement |
| AWM Embarkation Roll number | 23/58/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A20 Hororata on |
| Regimental number from Nominal Roll | 3277B |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 49th Battalion |
| Fate | Returned to Australia |
| Miscellaneous information from cemetery records | Plaque in Queensland Garden of Remembrance |
| Family/military connections | Brothers: 5004 Pte David John CLARKSON, 31st Bn, returned to Australia, 18 December 1919; 3272 Corporal Charles CLARKSON, 49th Bn, returned to Australia, 23 September 1918. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Date of death |