| Regimental number | 108 |
| Place of birth | Seymour, Tasmania |
| School | State School, Tasmania |
| Religion | Presbyterian |
| Occupation | Farmer |
| Address | Taranna, Tasmania |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, Egbert Allen, Taranna, Tasmania |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 40th Battalion, A Company |
| AWM Embarkation Roll number | 23/57/1 |
| Embarkation details | Unit embarked from Hobart, Tasmania, on board HMAT A35 Berrima on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 51st Battalion |
| Fate | Died of wounds |
| Place of death or wounding | France |
| Age at death | 19 |
| Place of burial | Pozieres British Cemetery (Plot II, Row D, Grave 38), Ovillers-La-Boisselle, France |
| Panel number, Roll of Honour, Australian War Memorial | 152 |
| Miscellaneous information from cemetery records | Parents: Egbert and Lucy ALLEN |
| Family/military connections | Brothers: 329 Pte Edwin ALLEN, 40th Bn, killed in action, 28 July 1917; 4436 Pte Leslie ALLEN, 52nd Bn, killed in action, 3-4 September 1916. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |