18th Battalion War Diary Entry for August 21, 1917
The Battalion left BULLY-GRENAY at 9.30 a.m. and proceeded to BOUVIGNY HUTS going into Corps Reserve. On the road “D” coy sustained 52 casualties, 23 of which were fatal, by the bursting of an enemy shell (high velocity). This bringing our casualties to approximately 220 during the tour. Lieut. W. Hampton and 4, O.Rs admitted to hospital (sick).