I believe your looking for Matilda Sauve. Daughter of Jean Baptiste Sauve and Ursule Lalonde. They lived in Hawkesbury East,Prescott County. Matilda was 30 yrs old in 1851 census.She had several brothers and sisters. You can find there names and history at, www.geocities.com sauvefamilyhistory. I haven't found a marriage for her yet.If you need any more help just ask.