Francis LaCoste 1816-1875 Father: Augustine LaCoste Mother: Elizabeth Hartley b. 1792
Augustine LaCoste Father: Augustine La Coast Mother: Euphrasine Moreau
This information came from the family tree of the late Aristide Laurent, He gave me his tree before his passing. Unfortunately, I do not have any other information. I myself have not researched the LaCoste family line. I hope this helps.