Commemorated at Memorial Name Waverley Soldiers' War Memorial Given name John Joseph Family name O'Brien Service number 948/85729 Additional information Gender Male Rank (legacy) PTE Unit at embarkation 18th Battalion C Company/ Special Service AIF Service (legacy) Army Conflicts World War 1 Campaign (legacy) Gallipoli France Fate Returned to Australia 29 Aug 1918 and 7 Sept 1919 National Archives of Australia AIF Project Do you know more about this war Veteran? Click here to learn how you can contribute