William Williams was a wartime guest player for Exeter City during 1944/45 when, as the situation eased, a number of games were organised to constitute the first football played by the club since 1939. 

Normally on the books of Newport club Lovells Athletic, William made his debut for the Grecians in a 6-2 win at Yeovil in February 1945. He was stationed locally and also played for Plymouth Argyle.