He was the eldest of the four sons of George Wyon, an engraver.
Around 1796, he went into business in Birmingham with his brother Peter, father of William Wyon, as a general die-engraver.
[1] Wyon engraved many dies for tokens, especially part of the Coventry series of buildings.
From 1800 he carried on business in London, and on 30 September 1816 was appointed Chief Engraver of the Seals.
This English business-related biographical article is a stub.