William was born in Wolverhampton in around 1895, the son of George and Agnes Clark. They were living at 43 Drayton Street, Wolverhampton, in 1901. By 1911, they had moved to 67 Hall Street, Blakenhall, Wolverhampton, and William had gained a brother (Albert Edward) and sister (Nellie). By this date, William was a labourer in the iron trade.
William enlisted as a Private in the 1st Battalion of the Grenadier Guards (number 25342). William was involved in the Battle of Cambrai, and was killed in action on 1 December 1917. He is remembered on the Cambrai Memorial in France, as well as on the roll of honour of St Chad and St Mark’s Church. By the date of his death, his parents were living at 1 House, 23 Block, Thompson Avenue, Wolverhampton.