Does anyone know Marie McMAHAN, who wrote "HORTON FAMILY F486" in book NACOGDOCHES COUNTY FAMILIES, 1985. She identified Elizabeth Davenport Cooper Groce as an ancestor. I want to know who she was, and what her GROCE connections were. I am a descendant of Mathew EARL & Larkin GROCE of Sabine County, ca 1828. Can anyone help me find Marie? ***Jackie Ashley Pace of Pasadena TX