Wyon attended Highgate School and, like others in his family, studied sculpture in London from 1905 to 1909 at the Royal Academy. From 1910 to 1911 he was an assistant sculptor to Hamo Thornycroft. Between 1924 and 1930 he was Honorary Secretary of the Art Workers Guild. He was a Fellow of the Royal Society of British Sculptors and also worked as a die-engraver, but took Holy Orders in 1933. From 1936 until his retirement in 1955, he was vicar of St. Peter's, Newlyn.