| Regimental number | 36845 |
| Place of birth | Murtoa, Victoria |
| Religion | Methodist |
| Occupation | Farmer |
| Address | The Rock, New South Wales |
| Marital status | Single |
| Age at embarkation | 30.4 |
| Height | 5' 6.5" |
| Weight | 167 lbs |
| Next of kin | Mother, Mrs Elenora Aumann, Murtoa, Victoria |
| Enlistment date | |
| Place of enlistment | Melbourne, Victoria |
| Rank on enlistment | Gunner |
| Unit name | Field Artillery Brigade, Reinforcement 29 |
| AWM Embarkation Roll number | 13/128/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board A15 Port Sydney on |
| Rank from Nominal Roll | Driver |
| Unit from Nominal Roll | 2nd Field Artillery Brigade |
| Fate | Returned to Australia |
| Discharge date | |
| Family/military connections | Brothers: 27507 Corporal Frank Oswald AUMANN, 3rd Field Artillery Brigade, returned to Australia, 5 February 1920; 30578 Pte Frederick Benjamin AUMANN, 2nd Trench Mortar Battery, returned to Australia, 23 September 1918. |
| Other details |
War service: Western Front Commenced return to Australia on board HT 'Ayrshire', 1 August 1919; discharged (termination of period of enlistment), Melbourne, 10 December 1919. Medals: British War Medal, Victory Medal |
| Sources | NAA: B2455, AUMANN Reinhold |