| Place of birth | Lorne Victoria |
| Religion | Church of England |
| Occupation | Timber merchant |
| Address | Langri Banool, Bacchus Marsh, Victoria |
| Marital status | Single |
| Age at embarkation | 43 |
| Next of kin | Brother, T J Mountjoy, Postmaster, Brunswick, Victoria |
| Enlistment date | 20 January 1916 |
| Rank on enlistment | Lieutenant |
| Unit name | 4th Light Horse Regiment, 15th Reinforcement |
| AWM Embarkation Roll number | 10/9/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A13 Katuna on 9 March 1916 |
| Rank from Nominal Roll | Lieutenant |
| Unit from Nominal Roll | 2nd Anz Mounted Rgt |
| Fate | Returned to Australia 10 January 1918 |