Commemorated at Memorial Name Hawkesbury Agricultural College First World War Memorial University of Western Sydney Given name T R Family name O'Sullivan Gender Male Service number 2763 Conflicts First World War, 1914–18 Fate Killed in action (KIA) Additional information Address given on enlistment documents Last held rank Second Lieutenant Unit at embarkation 41st Battalion 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