| Place of birth | Sandyholm Scotland |
| Religion | Presbyterian |
| Occupation | Agent |
| Address | Perth, Western Australia |
| Marital status | Single |
| Age at embarkation | 36 |
| Next of kin | Father, John Coulthart, 38 Millar Place, Stirling, Scotland |
| Enlistment date | 21 February 1916 |
| Rank on enlistment | 2nd Lieutenant |
| Unit name | 27th Battalion, 18th Reinforcement |
| AWM Embarkation Roll number | 23/44/4 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A35 Berrima on 23 December 1916 |
| Rank from Nominal Roll | Lieutenant |
| Unit from Nominal Roll | 27th Battalion |
| Fate | Returned to Australia 21 March 1919 |
