Commemorated at Memorial Name Inverell Intermediate High School First World War Roll of Honour Given name O Family name Olsen Gender Male Service number 999 Conflicts First World War, 1914–18 Additional information Last held rank Sergeant Unit at embarkation 7th Training Squadron Australian Flying Corps Service Australian Army - First Australian Imperial Force (1st AIF) Do you know more about this war Veteran? Click here to learn how you can contribute