| Regimental number | 6000 |
| Place of birth | Branxholm, Tasmania |
| Religion | Church of England |
| Occupation | Driver |
| Address | Gladstone, Tasmania |
| Marital status | Single |
| Age at embarkation | 19.7 |
| Height | 5' 5.25" |
| Weight | 128 lbs |
| Next of kin | Father, Mr B Colk, Gladstone, Tasmania |
| Enlistment date | |
| Place of enlistment | Claremont, Tasmania |
| Rank on enlistment | Private |
| Unit name | 12th Battalion, 19th Reinforcement |
| AWM Embarkation Roll number | 23/29/4 |
| Embarkation details | Unit embarked from Hobart, Tasmania, on board HMAT A70 Ballarat on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 12th Battalion |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
War service: Western Front Commenced return to Australia on board HT 'Persic', 21 December 1917; discharged (medically unfit: gun shot wound, left hand), 31 May 1918. Medals: British War Medal, Victory Medal |
| Sources | NAA: B2455, COLK Leonard |