Does anyone have any information on Felix Mines (1835 -1908) second wife, Amy J. Hall?

Was her name Amy Jane or Amy John?

Her father may have been the brother of my great-great grandmother. If so, several of the women in the Hall family were named Amy John, after their grandparents, John and Amy Hall of Fayette Co., TN..
I'm trying to learn more about the Hall family. Not finding much information on them.

Janet
janetstitch@aol.com