| Regimental number | 823 |
| Place of birth | Bairnsdale Victoria |
| Religion | Church of England |
| Occupation | Farmer |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, J C Watt, Kellerberrin, Western Australia |
| Enlistment date | 8 January 1915 |
| Rank on enlistment | Private |
| Unit name | 10th Light Horse Regiment, 3rd Reinforcement |
| AWM Embarkation Roll number | 10/15/2 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A50 Itonus on 19 February 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 10th Light Horse Regiment |
| Fate | Discharged 25 June 1917 |
| Family/military connections | Brother: 824 Pte Keith Everard WATT, 10th Light Horse Regiment, killed in action 11 July 1915. |