Commemorated at Memorial Name St Andrew's Presbyterian Church Great War Honor Roll Grafton Given name R P G Family name McCallum Gender Male Service number 3877 Conflicts First World War, 1914–18 Additional information Last held rank Private Unit at embarkation 1st Pioneer Battalion 10th Reinforcements 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