Commemorated at Memorial Name New South Wales Lodges First World War Honour Roll Given name WO Family name Frost Gender Male Conflicts First World War, 1914–18 Campaign Ypres Salient 1917 Fate Killed in action (KIA) Fate date 10 September 1917 Additional information Address given on enlistment documents Last held rank Lieutenant Unit at embarkation 23rd 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