According to what I know, Jeanne (Stuart) Sills was born in Mitchell, Perth County, Ontario (actually still Canada West in 1850( to Scottish immigrants to Canada West. My uncle was in Ontario, but never found their names. They had to have arrived in Mitchell about 1848 or 1849. I don't know the original spelling of the name, but my great great grandmother went by Stuart (which was the French form of the name). Name could have been Steward, Stewart, Steauart, etc. I've not seen the immigration papers. My 2nd great grandmother died in Michigan.
She married Escott Sills in 1868 and had two sons, James and Robert, in Mitchell, Ontario, by 1871.