| Place of birth | Woolwich, New South Wales |
| School | St Ignatius College, Riverview, New South Wales |
| Religion | Roman Catholic |
| Occupation | Solicitor |
| Address | 'Kerelah', Mount Street, Hunters Hill, New South Wales |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Father, P Allan, 'Kerelah', Mount Street, Hunters Hill, New South Wales |
| Enlistment date | |
| Rank on enlistment | 2nd Lieutenant |
| Unit name | 20th Battalion, 7th Reinforcement |
| AWM Embarkation Roll number | 23/37/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A29 Suevic on |
| Rank from Nominal Roll | Lieutenant |
| Unit from Nominal Roll | 20th Battalion |
| Fate | Died of wounds |
| Place of death or wounding | Pozieres, Somme Sector, France |
| Age at death | 24 |
| Place of burial | Becourt Military Cemetery (Plot I, Row S, Grave 4), Becordel-Becourt, France |
| Panel number, Roll of Honour, Australian War Memorial | 90 |
| Miscellaneous information from cemetery records | Parents: Percy and Alice Mary ALLAN. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |