This part of the tree which John Clarke above is in appears similar to the tree for Unknown Profile in terms of their parents, but their wives are different. Here is one source of information for the John Clark who married Mary and Sara - http://familytreemaker.genealogy.com/users/b/a/i/Susan-C-Bailey/GEN... I don't know which (if either) of the spouse and descendant lists is correct or most correct.
