| Regimental number | 27507 |
| Place of birth | Murtoa, Victoria |
| Religion | Presbyterian |
| Occupation | Farmer |
| Address | Murtoa, Victoria |
| Marital status | Single |
| Age at embarkation | 20.3 |
| Height | 5' 4.25" |
| Weight | 140 lbs |
| Next of kin | Mother, Mrs L Aumann, Murtoa, Victoria |
| Previous military service | Served for 1 year in the Senior Cadets; 1 year in the 73rd Infantry, Citizen Military Forces; 1.5 years in the 19th Australian Light Horse; still serving at time of AIF enlistment. |
| Enlistment date | |
| Place of enlistment | Melbourne, Victoria |
| Rank on enlistment | Driver |
| Unit name | Field Artillery Brigade 8, Reinforcement 4 |
| AWM Embarkation Roll number | 13/36/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A30 Borda on |
| Rank from Nominal Roll | Corporal |
| Unit from Nominal Roll | 3rd Field Artillery Brigade |
| Fate | Returned to Australia |
| Discharge date | |
| Family/military connections | Brother: 30578 Pte Frederick Benjamin AUMANN, 2nd Trench Mortar Battery, returned to Australia, 23 September 1918; 36845 Driver Reinhold AUMANN, 2nd Field Artillery Brigade, returned to Australia, 1 August 1919. |
| Other details |
War service: Western Front Commenced return to Australia on board HT 'Themistocles', 5 February 1920; discharged (termination of period of enlistment), Melbourne, 21 March 1920. Medals: British War Medal, Victory Medal |
| Sources | NAA: B2455, AUMANN Frank Oswald |