Thérèse was the daughter of Pierre Stene dit Lajeunesse and Marie-Madeleine Frappier. The date and place of her birth have not been found.
Her husband was Charles Cassé dit St-Aubin, who she married on 15 JAN 1741 in Détroit, Wayne Co. MI . Their two known children were Madeleine (1743-1804) and Marie (1746-1813).