| Regimental number | 2123 |
| Place of birth | Moruya, New South Wales |
| School | Public School, New South Wales |
| Religion | Church of England |
| Occupation | Farmer |
| Address | 'Cooboora', Moruya, New South Wales |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, Edward L Arnett, 'Cooboora', Moruya, New South Wales |
| Previous military service | He was a member of the Bergalia Rifle Club. |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 55th Battalion, 4th Reinforcement |
| AWM Embarkation Roll number | 23/72/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A15 Port Sydney on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 55th Battalion |
| Other details from Roll of Honour Circular | He was wounded 26 September 1917 Polygon Wood, Ypres but remained on duty until he was relieved five days later. |
| Fate | Killed in Action |
| Place of death or wounding | Villers-Bretonneux, France |
| Age at death | 24 |
| Age at death from cemetery records | 24 |
| Place of burial | Daours Communal Cemetery Extension (Plot III, Row B, Grave No. 28), France |
| Panel number, Roll of Honour, Australian War Memorial | 160 |
| Miscellaneous information from cemetery records | Parents: Edward and Mary ARNETT, Kyogle, New South Wales. Native of Moruya, New South Wales |
| Family/military connections | Brother: 2260 Lance Corporal Charles Victor ARNETT, 55th Bn, returned to Australia, 2 June 1919. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |