Deces: 6 Mar 1852 • St. François de la Rivière du Sud, Montmagny, Québec, Canada

Ancestry Library: https://www.ancestrylibrary.com/interactive/1091/d13p_10320868/6412628

Ancestry Canada: https://www.ancestry.ca/interactive/1091/d13p_10320868/6412628

Ancestry US: https://www.ancestry.com/interactive/1091/d13p_10320868/6412628

Oops! Meant that to go to Johanne to update the record for Pierre...

I found Pierre Boissonnault/Boissonneau's enterrement record. I'm not having the same luck with Marguerite, though it is known that Marguerite predeceased Pierre.

Je la trouve. https://familysearch.org/ark:/61903/3:1:3QSQ-G99Q-ZFTW?cc=1321742&wc=9RLV-VZS%3A20757701%2C20757702%2C20757703