My Great grandmother was Hermance Brignac .She married Rene Berchman Vidrine.I only have the marriage date.Feb.13,1899 Ville Platte.Hermance's Father was Armand and mother was Lotitia Pitre.I cannot find anything on them.Would you know?I did find out Hermance is buried in Ville Platte ontop of her husband,which I understand was pretty common.(?)I was told the Brignacs have native ancestory.Have not been able to verify.Any help would be appreciated.Thank you