Antoine Le Duc was born in 1645 in Louvetôt, Rouen, Normandie, France, of Jean Le Duc and Jeanne Françoise Desobrie.

In 1656, he sails from Dieppe to Québec on an old 28 cannon warship, the St-Sebastien. On the third of september 1656 , he signs an agreement in Quebec, with the notary Guillaume Aucourt whereby he undertakes to serve the Sieur de la Ronde, Pierre Denys, for one year.

In 1667, Antoine works as a domestic in the house of Claude Herlin at the seigneury of the Cap-de-la-Madeleine.

In October 1670, with a fellow worker, Jean Harel and for three years he develops a farm where today stands the plant for heavy water in Gentilly. At the time the land was owned by Michel Pelletier de la Prade Seigneur of Côte St-Michel (Gentilly).

In 1671, he weds Jeanne Faucheux, daugter of Noël Faucheux and of Jacquette Trion of Huisseau-sur-Mauves, in the diocese of Oléans, Orléanais, France. Jeanne was one of the 800 young French women known as "Filles du roi" (daughters of the King), who agreed to go to New France to be maried to one of the settlers who was already there.

In the year 1673, the Intendant Jean Talon grants Antoine a piece of land in St-Charles-des-Roches (Grondines). Some time later, he moves to another concession in Ste-Anne-de-la-Pérade, towards the entrance of the Rapide-Sud.

Antoine Le Duc and Jeanne Faucheux had two sons Jean-Baptiste and Pierre-Charles.

Jean-Baptiste who maried Angélique Gaudry in 1705, took over at St-Anne-de-la-Pérade and fathered the Le Duc's in the area by having five children.

Pierre-Charles who maried Magdeleine Vielle in 1710, moved to Verchères in order to work for the father of Madeleine Jarret, the seigneuresse of Ste-Anne. They were the parents of ten children who setteled to the south of Montreal.

Antoine was more of a "coureur de bois" than a farmer. In1682, he sold his animals, paid his debts and drew up his marriage contract at Ste-Anne-de-la-Pérade. Three months later, in may 1682, he ventured into the fur trade, traveling with five companions to the Great Lakes. In the summer of 1682, he was among the group of three Frenshmen who were attacked by Iroquois near Toronto. Since then, no other trace of our ancestor, Antoine, has ever been found.