| Regimental number | 236 |
| Place of birth | Hamilton, Victoria |
| School | Dunmore West State School, Victoria |
| Other training | School Teacher |
| Religion | Church of England |
| Occupation | Clerk |
| Address | Riviera, North Quay, Brisbane, Queensland |
| Marital status | Single |
| Age at embarkation | 28 |
| Height | 5' 8.75" |
| Weight | 136.5 lbs |
| Next of kin | Mrs C. Allen, Heywood, Victoria |
| Previous military service | Staff Sergeant Major (2 years); Military Staff Clerk (2 years) |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Place of enlistment | Brisbane, Queensland |
| Rank on enlistment | CSGT |
| Unit name | 9th Battalion, B Company |
| AWM Embarkation Roll number | 23/26/1 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board Transport A5 S.S. Omrah on |
| Rank from Nominal Roll | Sergeant |
| Unit from Nominal Roll | 12th Battalion |
| Other details from Roll of Honour Circular | 'This boy was bought up in the country; started out as a school teacher, was then in the Commonwealth Service for a time till appointed to Brisbane as a Staff Clerk. He had received an appointment in the HMS Australia when war broke out. He then enlisted with the first contingent for the war.' (details from mother) |
| Fate | Killed in Action |
| Place of death or wounding | Gallipoli, Turkey |
| Date of death | |
| Age at death | 29 |
| Place of burial | Lone Pine Cemetery (Row L, Grave 5), Gallipoli, Turkey |
| Panel number, Roll of Honour, Australian War Memorial | 54 |
| Miscellaneous information from cemetery records | Parents: Jane and Charles ALLEN. |
| Family/military connections | Brother: 1614 Pte Charles Alexander ALLEN, 58th Bn, killed in action, Polygon Wood, 25 September 1917. |
| Other details |
War service: Egypt, Gallipoli Embarked Alexandria to join the British Expeditionary Force (Gallipoli Campaign), 2 March 1915. Posted as 'Missing in Action, 25 April 1915', Gaba Tepe, 2 May 1915. Court of Enquiry, France, 5 June 1916, pronounced fate as 'Killed in Action, Gallipoli, 25 April 1915'. Medals: 1914-15 Star, British War Medal, Victory Medal |
| Sources | NAA: B2455, ALLEN William Wallace Bentley |