During his life he helped raise hundreds of thousands of pounds for charities, including BBC Children in Need.
He regularly supported other local causes hosting major island events, often acting as an auctioneer.
BBC Guernsey’s Isla Blatchford said his “generosity with his time, support and enthusiasm proved invaluable” and helped her raise almost £40,000 for various charities over the last two decades.
“I think one of the best things about John was his ability to get people on board to help raise money for all sorts of causes,” she said.
“He could talk anyone into anything it seemed.”