| Religion | Church of England |
| Occupation | Secretary |
| Address | c/o A S Leslie Esq, Dunmore Terrace, Auchenflower, Brisbane, Queensland |
| Marital status | Single |
| Age at embarkation | 27 |
| Next of kin | Mrs A S Leslie, Dunmore Terrace, Auchenflower, Brisbane, Queensland |
| Previous military service | 3rd Battery Australian Field Artillery |
| Enlistment date | |
| Rank on enlistment | Captain |
| Unit name | Field Artillery Brigade 3, Battery 7 |
| AWM Embarkation Roll number | 13/31/1 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A22 Rangatira on |
| Rank from Nominal Roll | Captain |
| Unit from Nominal Roll | 1st Division Artillery |
| Fate | Died of wounds |
| Place of burial | Shell Green Cemetery (Plot I, Row I, Grave No. I), Gallipoli, Turkey |
| Panel number, Roll of Honour, Australian War Memorial | 13 |
| Family/military connections | Brothers: 2320 Sergeant Arthur LESLIE, 3rd Field Artillery Brigade, killed in action, 30 September 1918; Lt Ronald Douglas LESLIE, 26th Bn, died of wounds, 5 November 1916; Cousins: 4660 Pte David MERSON, 26th Bn, died of wounds, 18 April 1918; 2784 Sergeant James Leslie MERSON, 47th Bn, killed in action, 31 August 1916. |
| Other details |
War service: Egypt, Gallipoli Medals: 1914-15 Star, British War Medal, Victory Medal |