
| Regimental number | 2312 |
| Place of birth | Dundee, Scotland |
| Religion | Presbyterian |
| Occupation | Farmer |
| Address | PO, Nokanikng, Western Australia |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, David Coupar, PO, Nokanikng, Western Australia |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Place of enlistment | Merriden, Western Australia |
| Rank on enlistment | Private |
| Unit name | 43rd Battalion, 4th Reinforcement |
| AWM Embarkation Roll number | 23/60/2 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A16 Port Melbourne on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 4th Machine Gun Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brother: 2313 Pte Henry Brinton COUPAR, 43rd Bn, killed in action, 10 June 1917. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |