| Regimental number | 574 |
| Place of birth | Beaufort, Victoria |
| Religion | Church of England |
| Occupation | Grazier |
| Marital status | Widower |
| Age at embarkation | 43 |
| Height | 5' 11.25" |
| Weight | 175 lbs |
| Next of kin | Daughter, Miss Sarah Allason, 5 Waltham Street, Richmond, Victoria |
| Previous military service | 1st Commonwealth Horse, South African War |
| Enlistment date | |
| Place of enlistment | Brisbane, Queensland |
| Rank on enlistment | Private |
| Unit name | 9th Light Horse Regiment, 1st Reinforcement |
| AWM Embarkation Roll number | 10/14/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A52 Surada on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 15th Battalion |
| Fate | Killed in Action |
| Family/military connections | Undertook second period of service, see 7681 Sidney Ernest ALLASON. |
| Other details |
War service, Egypt. Embarked, 6 February 1915; disembarked Suez, 21 March 1915. Found guilty, Mena, 17 April 1915, of disobedience of orders: awarded 14 day's detention. Commenced return to Australia on board HT 'Kyarra', 10 June 1915. Discharged Melbourne (misconduct), 19 July 1915. Medals: 1914-15 Star, British War Medal, Victory Medal |
| Miscellaneous details | Second period of enlistment states Brighton, England as place of birth. |
| Sources | NAA: B2455, ALLASON Sidney Ernest |