Commemorated at Memorial Name Hawkesbury Agricultural College First World War Memorial University of Western Sydney Given name R I Family name Arnold Gender Male Service number 754 Conflicts First World War, 1914–18 Campaign Somme 1916 - 1917 Fate Killed in action (KIA) Fate date 08 August 1916 Additional information Address given on enlistment documents Last held rank Second Lieutenant Unit at embarkation 15th 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