| Regimental number | 1662 |
| Place of birth | Renmark South Australia |
| Other Names | Stuart Monteith |
| Religion | Church of England |
| Occupation | Grazier |
| Address | Surat, West Queensland |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Mother, Mrs Henrietta Jane Sinclair, Abor Downe, Capella, Queensland |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 2nd Light Horse Regiment, 12th Reinforcement |
| AWM Embarkation Roll number | 10/7/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A23 Suffolk on |
| Rank from Nominal Roll | Driver |
| Unit from Nominal Roll | 1st Light Horse Brigade Machine Gun Squadron |
| Fate | Returned to Australia |
| Miscellaneous information from cemetery records | Plaque in Queensland Garden of Remembrance |
| Family/military connections | Brother: 1045 Pte Bruce Arran SINCLAIR, 2nd Light Horse Regiment, returned to Australia, 28 January 1916. |
| Other details | Medals: British War Medal, Victory Medal |
| Date of death |