| Regimental number | 260 |
| Place of birth | Sydney, New South Wales |
| School | Sydney Grammar School, New South Wales |
| Religion | Church of England |
| Occupation | Statio overseer |
| Address | Coan Downs, Mount Hope, New South Wales |
| Marital status | Single |
| Age at embarkation | 26 |
| Height | 6' 0" |
| Weight | 160 lbs |
| Next of kin | Brother, D Westgarth, Blayney, New South Wales |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Liverpool, New South Wales |
| Rank on enlistment | Private |
| Unit name | 12th Light Horse Regiment, B Squadron |
| AWM Embarkation Roll number | 10/17/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A29 Suevic on |
| Regimental number from Nominal Roll | Commissioned |
| Rank from Nominal Roll | 2nd Lieutenant |
| Unit from Nominal Roll | 12th Light Horse Regiment |
| Promotions |
2nd Lieutenant Unit: 7th Light Horse Regiment Promotion date: |
| Fate | Died of illness |
| Miscellaneous details (Nominal Roll) | Given name entered as Muryn on Nominal Roll. Date of death incorrectly recorded as 9 December 1918. |
| Place of death or wounding | Cairo, Egypt |
| Age at death | 29 |
| Place of burial | Port Said War Memorial Cemetery (Row E, Grave 19), Egypt. |
| Panel number, Roll of Honour, Australian War Memorial | 8 |
| Miscellaneous information from cemetery records | Parents: George Charles and Lucy Florence WESTGARTH. |
| Other details |
War service: Egypt, Gallipoli, Palestine Died of pneumonia. Medals: 1914-15 Star, British War Medal, Victory Medal |
| Sources | NAA: B2455, WESTGARTH Mervyn |