An 1871 Canadian census entry possibly for Marianne Voisin [I02041], mother of August Voisin [I02072]. Although her age does not match, this is an older Marianne Voisin, living alone in the same area, after her son was married in 1867.

Waterloo, Waterloo County, Ontario, Canada

Source: 1871 Census, Waterloo, Ontario, Canada, district 32 North Waterloo, subdistrict Wellesley, Page 5, House 15, Family 19, Line 10, Marianne Voisin ; digital images, Library and Archives Canada, Censuses (http://www.bac-lac.gc.ca/eng/census/Pages/census.aspx : downloaded 19 November 2017).