According to his profile: "Rene was born in France in 1669, was a Huguenot who fought at the Battle of Boyne in Ireland in 1690 and came to America about 1700. Family tradition has him stopping at the Island of Bermuda where he married Mary Bullock. He was a soldier in his youth and was in the army of James II in the English Revolution of 1688. For reasons of preference, he is said to have deserted to the standard of King William along with many others. For his services to King William, he was given a grant of land on the Mississippi River ( another source says the it was the James River District in what is now Maryland). He went first to the shores of Carolina, and losing two sons there, he moved to the more healthy region on the Eastern shore of Chesapeake Bay. (There was a colony of French families on the Santee River in South Carolina who began to migrate about 1712, due to the unhealthy climate. Rene's family may well have been among them.)"
You can start finding the answer by going first to the Huguenot Migration Project on WikiTree.
You can also check out The Huguenot Society of America. They maintain a list of ancestors their members have cited when they joined. Then I would suggest a Google search for both this family and for Huguenots in general.
Glad you found him. That's great. You should get in touch with someone at the Huguenot migration project. They can tell you what you need to do now.