I don't know if this is who you are looking for, but I have a Minerva and Amanda Bales in my line.See if this could be it.
Caleb Bales and Cynthia Jincy Jane Craig had ten children. One is named Manirva J. Bales, b: Abt. 1845 in Arkansas, d: 1870 in Arkansas.Manirva had a brother named David Bailey Bales and he 2 children from his first wife Mary E. Comer and had 11 children by his second wife Matilda Caroline Dew.Mary Bales b: Abt. 1866 and Amanda Bales b: Abt. 1868 was from his first wife Mary E. Comer.Let me know if you think these are the people you are looking for.