Commemorated at Memorial Name Lieutenant William Eustace O'Halloran Memorial Warialda Given name William Eustace Family name O'Halloran Gender Male Conflicts First World War, 1914–18 Campaign Somme 1916 - 1917 Fate Killed in action (KIA) Fate date 02 April 1917 Additional information Religion Roman Catholic Occupation Shire Clerk Address given on enlistment documents Warialda NSW Marital status Married Age at embarkation (years) 30 Next of kin Wife, Mrs A T O'Halloran Enlistment date Thu, 7 January 1915 Rank on enlistment Private Last held rank Lieutenant Unit from Nominal Roll 20th Battalion Unit at embarkation 20th Battalion - 5th Reinforcement Service Australian Army - First Australian Imperial Force (1st AIF) Veteran Notes/Bio Died in France Australian War Memorial - Roll of Honour, William Eustace O'Halloran The A.I.F. Project - Wm Eustace O'Halloran Do you know more about this war Veteran? Click here to learn how you can contribute