| Place of birth | Sydney, New South Wales |
| Religion | Congregational |
| Occupation | Dentist |
| Address | Cranbrook, Beecroft, New South Wales |
| Marital status | Single |
| Age at embarkation | 35 |
| Next of kin | Father, John Vernon, Cranbrook, Beecroft, New South Wales |
| Enlistment date | |
| Place of enlistment | Sydney, New South Wales |
| Rank on enlistment | 2nd Lieutenant |
| Unit name | 2nd Battalion, 7th Reinforcement |
| AWM Embarkation Roll number | 23/19/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A67 Orsova on |
| Rank from Nominal Roll | Major |
| Unit from Nominal Roll | 2nd Battalion |
| Promotions |
Captain Unit: 2nd Battalion Promotion date: Major Unit: 2nd Battalion Promotion date: |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
War service: Egypt, Gallipoli, Western Front Commenced return to Australia on board HT 'Boonah', 20 April 1919; disembarked Melbourne, 8 June 1919, for onward travel to Sydney, disembarked HT 'Sardinia', Sydney; discharged (appointment terminated), 10 August 1919. Wounded and rejoined battalion, 14 May 1917. Appointed OC, C Coy, 21 June 1917. Attached to 109 Infantry Brigade, British Expeditionary Force, 18-22 July 1918. Medals: 1914-15 Star, British War Medal, Victory Medal |
| Date of death | |
| Age at death | 59 |
| Sources | NAA: B2455, VERNON Harry Gordon |