| Place of birth | Melbourne, Victoria |
| School | Brunswick State School, Victoria |
| Religion | Church of England |
| Occupation | Dresser |
| Address | 87 Albert Street, East Brunswick, Victoria |
| Marital status | Married |
| Age at embarkation | 27 |
| Next of kin | Wife, Mrs E.B. Bayntun, 87 Albert Street, East Brunswick, Victoria |
| Previous military service | Served in E Company, 5th Australian Infantry Regiment, Citizen Military Forces, Melbourne, Victoria |
| Enlistment date | |
| Rank on enlistment | 2nd Lieutenant |
| Unit name | 7th Battalion, 14th Reinforcement |
| AWM Embarkation Roll number | 23/24/4 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A32 Themistocles on |
| Rank from Nominal Roll | 2nd Lieutenant |
| Unit from Nominal Roll | 7th Battalion |
| Other details from Roll of Honour Circular | Real name: Arnaud Rolt BAYNTUN |
| Fate | Died of wounds |
| Place of death or wounding | Bullecourt, France |
| Date of death | |
| Age at death | 27 |
| Place of burial | Bailleul Communal Cemetery Extension (Plot II, Row E, Grave No. 193), France |
| Family/military connections | Father: 411 Sergeant Edward BAYNTON, 6th Bn, returned to Australia, 21 April 1918; Father-in-law: 756 Sergeant Samuel Charles WILSON, 6th Bn, returned to Australia, 24 June 1916. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |