Commemorated at Memorial Name Hawkesbury Agricultural College First World War Memorial University of Western Sydney Given name O P Family name Alderson Gender Male Service number 2274 Conflicts First World War, 1914–18 Campaign Gallipoli 1915 Fate Killed in action (KIA) Additional information Address given on enlistment documents Last held rank Gunner Unit at embarkation 3rd Field Artillery Brigade 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