Go to the above on the web- it's ancestry.com- sign in and then "search " for Charles m Foss.
You'll find richard s in the search. Also - email a distant cousin of mine at DORFOSS@NEMAINE.com
I am a Foss descendent but didn't find Charles mark in my listings- However- She and I just spoke earlier this evening and she mentioned that a HALL Relative had given her some info to start her family tree search when she was younger . Ask her if that Richard is the same. If so then Welcome to the family -lol. We are related to most of the Foss family that live and have lived in ME. Good Luck .,and Good night ! John Haley