I've finally followed my ancestral line up to the immigrant Joseph C. Larivere, which was Americanized to Rivers. He was evidently married to a Margaret (don't know maiden name). My father told me that their son, Augustus was born in Montreal on 14 Nov 1847.
A middle name of Clermont seems common through some of the men in the family. One of Joseph's descendants had a first name of Clement. Could that be a derivation of Clermont?
I'm clueless when it comes to reading French and really don't know how to go about crossing the line into Canadian genealogy sources. Any suggestions?