| Regimental number | 2139 |
| Other Names | Alexander Thomson |
| Religion | Presbyterian |
| Occupation | Seaman |
| Address | 301 George Street, Fitzroy, Victoria |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Mother, Mrs R E Coubrough, 301 George Street, Fitzroy, Victoria |
| Enlistment date | 10 March 1915 |
| Rank on enlistment | Private |
| Unit name | 6th Battalion, 6th Reinforcement |
| AWM Embarkation Roll number | 23/23/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A62 Wandilla on 17 June 1915 |
| Rank from Nominal Roll | Corporal |
| Unit from Nominal Roll | 6th Battalion |
| Fate | Returned to Australia 4 December 1915 |
| Family/military connections | Brother: 4305 Pte Thomas John Victor COUBROUGH, 60th Bn, killed in action, 19 July 1916. |