John Mark Charnon died on Sept 21, 2025 at the age of 85. A long-time resident of San Farncisco, he was an artist and treasurer of numerous law firms in the Bay area. He is survived by his sister, Mary Louise Charnon Deutsch and brother-in-law Dale Deutsch of Stony Brook, New York, and sister Margaret Ellen Charnon of Green Bay, Wisconsin. He is predeceased by parents Anthony Francis Charon and Mary Elizabeth Charnon as well as siblings Anthony Patrick Charnon, Paul Jospeh Charnon and Elizabeth Ann McMahon