Marie was the daughter of unknown parents. The date and place of her birth have not been found.
Her husband was Antoine Langlois, who she married on 14 MAR 1773 in l'Assomption-de-la-Pointe-de-Montréal, Sandwich (Windsor) ON . Their nine known children were Marie-Desanges (c1773-?), Antoine (c1774-?), Marguerite (1775-1775), Joseph (c1777-?), Jeanette (c1778-?), Pierre (c1780-?), Alexis (c1783-?), Julien (c1786-?) and Nicolas (?-?).