Commemorated at Memorial Name Braidwood Public School First World War Roll of Honour Given name Thomas Family name O'Brien Gender Male Service number 4555A Conflicts First World War, 1914–18 Fate Killed in action (KIA) Fate date 25 July 1916 Additional information Unit at embarkation Ist Australian Pioneer Battalion Service Australian Army Do you know more about this war Veteran? Click here to learn how you can contribute