
| Regimental number | 3604 |
| Place of birth | Myponga South Australia |
| Religion | Church of England |
| Occupation | Labourer |
| Address | Myponga, South Australia |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, Archibald Sinclair, Myponga, South Australia |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 27th Battalion, 8th Reinforcement |
| AWM Embarkation Roll number | 23/44/2 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A30 Borda on |
| Rank from Nominal Roll | Lance Corporal |
| Unit from Nominal Roll | 10th Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brother: 3605 Lance Corporal William Charles SINCLAIR, 10th Bn, returned to Australia, 25 January 1919. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |