
| Regimental number | 18262 |
| Place of birth | Sydney New South Wales |
| Religion | Church of England |
| Occupation | Plumber and engineer |
| Address | The Mall, Leura, New South Wales |
| Marital status | Single |
| Age at embarkation | 28 |
| Next of kin | Father, Alexander Sinclair, The Mall, Leura, New South Wales |
| Enlistment date | |
| Rank on enlistment | Sapper |
| Unit name | April 1917 Reinforcements |
| AWM Embarkation Roll number | 14/42/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A28 Miltiades on |
| Rank from Nominal Roll | Sapper |
| Unit from Nominal Roll | 5th Field Company Engineers |
| Fate | Returned to Australia |
| Family/military connections | Brother: 18260 Pte Charles Henry SINCLAIR, 4th Division Train Australian Army Service Corps, returned to Australia, 3 January 1919. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |