I am trying to trace my Native history. My 3rd great Aunt is Malvina Louisa "Lavina" Chesney. Her mother is said to have been full blooded Comanche. Her father John Chesney married Elizabeth Castleman, but I do not believe Elizabeth is Malvina's mother.

Malvina Louisa "Lavina" Chesney
Birth 6 Mar 1831 in Post Oak Grove, Lavaca County, Texas
Death 09 Jul 1920 in Hallettsville, Lavaca County, TX