| Place of birth | Albert Park Victoria |
| Religion | Congregational |
| Occupation | Civil engineer |
| Address | Upper Hawthorn, Victoria |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Father, William Edward Sexton, St Helen's Road, Upper Hawthorn, Victoria |
| Previous military service | 7th Field Company Army Engineers |
| Enlistment date | 25 February 1916 |
| Date of enlistment from Nominal Roll | 24 February 1916 |
| Rank on enlistment | 2nd Lieutenant |
| Unit name | December 1916 Reinforcements |
| AWM Embarkation Roll number | 14/42/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A67 Orsova on 2 December 1916 |
| Rank from Nominal Roll | Lieutenant |
| Unit from Nominal Roll | 2nd Division Engineers |
| Fate | Effective abroad (still overseas) |
| Miscellaneous details (Nominal Roll) | *Given name Clarence William |