In familySearch, it mentions the "Maternal Grandfather's Name of the birth of Marie Clair Durt Perrin is "Charles Durt." This needs to be reverified.
Citing this Record
"France, Naissance et baptêmes, 1546-1896," FamilySearch (https://familysearch.org/ark:/61903/1:1:FM47-L6X : 13 September 2019), Marie Claire Drut, 16 Aug 1853; citing Birth, Lyon, Rhône, Rhône-Alpes, France, Archives départementales du Jura (Departmental Archives of Jura), France. FHL microfilm 732,077.