| Place of birth | Waverley, New South Wales |
| School | Bondi Superior Public School, New South Wales |
| Religion | Church of England |
| Occupation | Law clerk |
| Address | 29 Flood Street, Bondi, New South Wales |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, J D Allan, 29 Flood Street, Bondi, New South Wales |
| Enlistment date | |
| Rank on enlistment | 2nd Lieutenant |
| Unit name | 20th Battalion, 10th Reinforcement |
| AWM Embarkation Roll number | 23/37/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A67 Orsova on |
| Rank from Nominal Roll | Lieutenant |
| Unit from Nominal Roll | 20th Battalion |
| Fate | Killed in Action |
| Place of death or wounding | Fleurbaix, France |
| Age at death | 23 |
| Place of burial | No known grave |
| Commemoration details | V.C. Corner (Panel No 6), Australian Cemetery Memorial, Fromelles, France |
| Panel number, Roll of Honour, Australian War Memorial | 156 |
| Miscellaneous information from cemetery records | Parents: John Douglas and Mary Ellen ALLAN |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |