I just now found you query on the Tessier dit Lavigne name.Our 3greatgrandmother was Henriette Tessier dit LaVigne. She was born in 1802, St.Eustach, Montrea, Canada. She married to Joseph Chefre. They immagrated to New York and then Illinois.There was/and still is a very large French Canadian community in Kankakee County, Illinois. Especially the town of St. Anne was almost all french Canadian. If you do a search for St.Anne, Kankakee, Illinois, it might help you located your ancester. Also, there was a big french fort and settlement along the Mississippi River. I don't recall the name right now. I let you know later if you are interested.