| Place of birth | Auckland, New Zealand |
| Religion | Roman Catholic |
| Occupation | Medical practitioner |
| Address | Randwick, New South Wales |
| Marital status | Single |
| Age at embarkation | 26 |
| Next of kin | Father, G J Allen, 'Allendale', Sydney Road, Randwick, New South Wales |
| Enlistment date | 6 March 1917 |
| Place of enlistment | N/A |
| Rank on enlistment | Captain |
| Unit name | Medical Officers |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A30 Borda on 23 June 1917 |
| Rank from Nominal Roll | Captain |
| Unit from Nominal Roll | Australian Army Medical Corps |
| Fate | Returned to Australia 1 July 1919 |