In the 1901 census she is listed as M. Emire Boucher.[1]
Sources
↑ "Canada Census, 1901," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KHR3-8YF : 9 December 2020), M. Emire Baucher in household of Arthur Baucher, Rimouski, Quebec, Canada; citing p. 1, Library and Archives of Canada, Ottawa.
"Recensement du Canada de 1911," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVBZ-M2ZV : 16 March 2018), M Louise Boucher in entry for Arthure Boucher, 1911; citing Census, Rimouski Sub-Districts 1-40, Quebec, Canada, Library and Archives of Canada, Ottawa, Ontario; FHL microfilm 2,418,567.