Francois-Xavier Duplessis
François-Xavier Duplessis,, also written du Plessis, was a clergyman in New France.
He became a member of the Society of Jesus, and practiced on First Nation missions. He wrote "Avis et Pratiques pour Profiter de la Mission et en Conserver le Fruit a l'Usage des Missions du Pere du la Compagnie de Jesus", and "Lettre au Sujet des Calomnie-Publiees par l'Auteur des Nouvelles Ecclesiasliques".