| Regimental number | 2645 |
| Date of birth | |
| Place of birth | Sydney New South Wales |
| Religion | Presbyterian |
| Occupation | Clerk |
| Address | Enmore, New South Wales |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Mother, Mrs Alice Eliza Dunn, 12 Don Street, Enmore, New South Wales |
| Previous military service | 34th Infantry |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 56th Battalion, 6th Reinforcement |
| AWM Embarkation Roll number | 23/73/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A40 Ceramic on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 56th Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brother: 4678 Corporal James Louis McGREGOR DUNN, 20th Bn, returned to Australia, 18 October 1917. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Date of death | |
| Place of burial | Rookwood Crematorium, Sydney, New South Wales |