| Regimental number | 5063 |
| Place of birth | Two Wells, South Australia |
| Place of birth | Port Gawler District |
| School | Public School, South Australia |
| Religion | Methodist |
| Occupation | Farmer |
| Address | Prospect, South Australia |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Father, John Secomb, Flora Terrace, Prospect, South Australia |
| Previous military service | Nil |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 27th Battalion, 13th Reinforcement |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board A45 Bulla on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 32nd Battalion |
| Fate | Killed in Action |
| Miscellaneous details (Nominal Roll) | *Given name Leslie Vincent |
| Place of death or wounding | Morlancourt, France |
| Date of death | |
| Age at death | 29 |
| Age at death from cemetery records | 29 |
| Place of burial | Heath Cemetery (Plot VII, Row A, Grave No. 3), Harbonnieres, France |
| Panel number, Roll of Honour, Australian War Memorial | 121 |
| Miscellaneous information from cemetery records | SPELT DIMENT. Parents: John and Jane SECOMB, Bosanquet Avenue, Prospect, South Australia |
| Family/military connections | Nil |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |