James Michener’s novel “ The Covenant” dealing with the settlement of So. Africa refers at length to the immigration of the Huguenots to that part of the world in the aftermath of the revocation of ‘The Edict of Nance” in 1685. From my reading of US history if you are of some French extraction with ancestors who settled in the mid-south you are probably of Protestant heritage. If your ancestors settled in New England, then your heritage is probably Catholic.