17. SS218 "Notes Compiled by GS British Fourth Army On the Operations by the Australian Corps against Hamel, Bois de Hamel and Bois de Vaire on 4 July 1918", July 1918, 3DRL2316 28; "General Report on the Action of the Field and Horse Artillery Covering the Attack by the 4th, 6th and 11th Infantry Brigades on Hamel and Vaire Wood and the High Ground to the East on 4 July 1918", 8 July 1918, AWM16 4361/1/4