William sorved in the 14th Battalion of the Royal Welsh Fusiliers and died on the 26th August 1918, aged 19. He was the son of Mrs Mary Jane Davies of Bryn-y-Ffynnon, Pentre, Llangerniew.
He is Remembered with Honour in the Caterpillar Valley Cemetery, Longueval. Longueval is a village in France, in the Somme, approximately 13 kilometres east of Albert and 10 kilometres south of Bapaume. The cemetery rememebers 1773 identified casualties.