| Regimental number | 4490 |
| Place of birth | Sydney New South Wales |
| Religion | Church of England |
| Occupation | Clerk |
| Address | 'Rosemont', Atchison Street, North Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, G Gardyne, 'Rosemont', Atchison Street, North Sydney, New South Wales |
| Enlistment date | 21 August 1917 |
| Date of enlistment from Nominal Roll | 3 September 1917 |
| Rank on enlistment | Private |
| Unit name | Light Horse, February 1918 Reinforcements |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board SS Port Darwin on 30 April 1918 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 1st Field Squadron Engineers |
| Fate | Returned to Australia 3 July 1919 |
| Family/military connections | Brother: 7773 Pte Noel George David GARDYNE, Field Squadron Engineers, returned to Australia, 31 May 1919. |
