Shortly thereafter, Potier embarked at La Rochelle for New France on June 18, 1743, where he arrived on October 1 at Quebec.
On September 25, 1744 Potier arrived at the Jesuit mission to the Hurons that was located on Bois Blanc Island in the Detroit River, some 30 kilometers (20 miles) south of Detroit, to serve under the mission superior, Armand de La Richardie.
When La Richardie was forced to depart due to illness, Potier took over the management of the mission.
After New France passed to British control in 1763, Potier's ministry was extended to include those Canadiens residing on the left bank (now the Canadian side) of the Detroit River, in addition to the Hurons.
des Canadiens au xviiie siècle, the only known lexicon of French spoken in New France.