Margaret was born in 1863 and passed away in 1946.
"Canada Census, 1881," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MVDT-5G9 : 15 December 2020), Marguerite Monminie in household of Edward Monminie, Sandwich East Township, Essex, Ontario, Canada; from "1881 Canadian Census." Database with images. Ancestry. (www.ancestry.com : 2008); citing Edward Monminie, citing Library and Archives Canada, Ottawa, Ontario.
"Ontario Marriages, 1869-1927," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:FMJB-G3K : 10 April 2015), Remi Pitre and Marguerite Monmini, 12 Nov 1883; citing registration , Sandwich East, Essex, Ontario, Canada, Archives of Ontario, Toronto; FHL microfilm 1,869,765.