| Regimental number | 4201 |
| Place of birth | Hampden, Victoria |
| Religion | Presbyterian |
| Occupation | Farmer |
| Address | Cobden, Victoria |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Mother, Mrs J Duncan, Cobden, Victoria |
| Enlistment date | 26 July 1915 |
| Rank on enlistment | Private |
| Unit name | 8th Battalion, 13th Reinforcement |
| AWM Embarkation Roll number | 23/25/5 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A64 Demosthenes on 29 December 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | AIF Kit Stores |
| Fate | Returned to Australia 25 March 1919 |
| Miscellaneous details (Nominal Roll) | *Stated to be alexander Duncan on NR |
| Family/military connections | Brother: 4193 Pte John DUNCAN, 8th Bn, returned to Australia, 12 May 1918. |