| Place of birth | Unley, South Australia |
| School | Unley Public School, South Australia |
| Religion | Methodist |
| Occupation | Audit Clerk, SAR |
| Address | Upper Sturt, South Australia |
| Marital status | Married |
| Age at embarkation | 29 |
| Next of kin | Wife, Mrs S G Leak, Upper Sturt, South Australia |
| Enlistment date | |
| Rank on enlistment | 2nd Lieutenant |
| Unit name | 27th Battalion, 20th Reinforcement |
| AWM Embarkation Roll number | 23/44/5 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A60 Aeneas on |
| Rank from Nominal Roll | Lieutenant |
| Unit from Nominal Roll | 27th Battalion |
| Fate | Died of wounds |
| Place of death or wounding | Peronne, France |
| Age at death | 31 |
| Place of burial | Heath Cemetery (Plot IX, Row A, Grave No.6), Harbonnieres, France |
| Panel number, Roll of Honour, Australian War Memorial | 110 |
| Miscellaneous information from cemetery records | Parents: Daniel and Cleopatra LEAK; husband of Stella LEAK, Upper Street, South Australia |
| Family/military connections | Brother who served. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |