Commemorated at Memorial Name Hawkesbury Agricultural College First World War Memorial University of Western Sydney Given name A R Family name Brien Gender Male Service number 5792 Conflicts First World War, 1914–18 Campaign Somme 1916 - 1917 Fate Killed in action (KIA) Fate date 10 April 1917 Additional information Address given on enlistment documents Last held rank Private Unit at embarkation 25th 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