The last time I saw my mother's cousin, Mary Jo Cowart Jenkins, she told me a little tidbit about a certain name in our family:
If you click on the book, American Ancestor's and Descendants of Dr. Charles S. (Bigelow) Morton and Mary L. Morton and read the page about the French Huguenots in our family you'll find that we are descended from Bartholomew Dupuy and his Wife Susannah Lavallon. Mary Jo said that there are many family members and ancestors with the name Mary Lavalette. That name is derived from Susannah Lavallon.
I know of two maybe three: My great great grandmother, Mary Lavalette Gilliam Morton and Mary Jo's mother, Mary Lavalette Martin Cowart.