| Regimental number | 4678 |
| Date of birth | |
| Place of birth | Lismore, New South Wales |
| Religion | Presbyterian |
| Occupation | Clerk |
| Address | Don Street, Enmore, New South Wales |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, J L Dunn, Don Street, Enmore, New South Wales |
| Enlistment date | |
| Rank on enlistment | Acting Corporal |
| Unit name | 20th Battalion, 12th Reinforcement |
| AWM Embarkation Roll number | 23/37/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A40 Ceramic on |
| Rank from Nominal Roll | Corporal |
| Unit from Nominal Roll | 20th Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brother: 2645 Pte Wallace Roy McGregor DUNN, 56th Bn, returned to Australia, 23 June 1919. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Date of death | |
| Place of burial | Rookwood Crematorium, Sydney, New South Wales |