| Regimental number | 3546 |
| Place of birth | Geraldton Western Australia |
| Religion | Church of England |
| Occupation | Student |
| Address | Kalamunda, Western Australia |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, Arthur Henry Mountain, Marine Terrace, Geraldton, Western Australia |
| Enlistment date | 23 May 1917 |
| Date of enlistment from Nominal Roll | 9 May 1917 |
| Rank on enlistment | Private |
| Unit name | 10th Light Horse Regiment, 31st Reinforcement |
| AWM Embarkation Roll number | 10/15/4 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board RMS A73 Commonwealth on 9 November 1917 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 10th Light Horse Regiment |
| Fate | Returned to Australia 10 July 1919 |
| Family/military connections | Brother: Lt Arthur Henry Torres MOUNTAIN, 16th Bn, killed in action, 27 April 1915. |
| Other details | Medals: British War Medal, Victory Medal |
