| Regimental number | 5086 |
| Date of birth | |
| Place of birth | England |
| School | Stanmore Public School, New South Wales |
| Religion | Church of England |
| Occupation | Steward |
| Address | 140 Percival Road, Stanmore, New South Wales |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, G T Gardiner, 140 Percival Road, Stanmore, New South Wales |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 3rd Battalion, 16th Reinforcement |
| AWM Embarkation Roll number | 23/20/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT SS Makarini on |
| Rank from Nominal Roll | Corporal |
| Unit from Nominal Roll | 1st Australian General Hospital |
| Fate | Discharged |
| Miscellaneous details (Nominal Roll) | *Spelt Harry Tunstoll Gardiner on NR |
| Family/military connections | Brother: 336 Pte George Edward GARDINER, 2nd Machine Gun Bn, returned to Australia, 19 October 1918. |
| Other details |
War service: Egypt, Western Front Medals: British War Medal, Victory Medal |