In 1791, he and his brothers received Royal Spanish grants on Bayou Boeuf. The next year Dupré married Théotiste Roy of Pointe Coupée Parish, in Opelousas.
In 1791, Dupré and his brothers secured royal concessions on Bayou Boeuf. The following year, Dupré married Théotiste Roy of Pointe Coupée Parish in Opelousas.