| Regimental number | 21677 |
| Place of birth | Kerang, Victoria |
| Religion | Presbyterian |
| Occupation | Clerk |
| Address | Kerang, Victoria |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Mother, Mrs S Arnoldt, Nolan Street, Kerang, Victoria |
| Previous military service | 67th Infantry |
| Enlistment date | 18 September 1917 |
| Rank on enlistment | Private |
| Unit name | Army Medical Corps, General Reinforcements |
| AWM Embarkation Roll number | 26/99/2 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A36 Boonah on 22 October 1918 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 3rd Casualty Clearing Station |
| Fate | Returned to Australia 22 August 1919 |
| Family/military connections | Brother: 447 Sergeant Arthur Howard ARNOLDT, Australian Flying Corps, returned to Australia, 6 May 1919. |
