| Regimental number | 110 |
| Place of birth | Durban, South Africa |
| Religion | Congregational |
| Occupation | Clerk |
| Marital status | Single |
| Age at embarkation | 29 |
| Height | 5' 10.25" |
| Weight | 148 lbs |
| Next of kin | Sister, Miss D E Vennermark, Escombe Terrace, Durban, South Africa |
| Previous military service | Served in Natal Medical Corps. |
| Enlistment date | |
| Place of enlistment | Morphettville, South Australia |
| Rank on enlistment | Private |
| Unit name | 10th Battalion, C Company |
| AWM Embarkation Roll number | 23/27/1 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board Transport A11 Ascanius on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 10th Battalion |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
War service: Egypt, Gallipoli Commenced return to Australia, 8 October 1915; discharged (medically unfit), Adelaide, 12 May 1916. Medals: 1914-15 Star, British War Medal, Victory Medal |
| Date of death | |
| Place of burial | Box Hill Cemetery, Victoria |
| Sources | NAA: B2455, VENNERMARK Carl William |