As far as I know, the mother of Valentine Akers (b. 1762, Buckingham Co VA, d. abt 1834, Floyd Co KY) was "Unknown" Blackburn. She was the first wife of Blackburn Akers, Sr.and probably the daughter of John Blackburn. John Blackburn was the brother of the mother of Blackburn Akers, Sr., Susannah Blackburn, making Blackburn Akers, Sr. and his wife first cousins.
I have seen Valentine's mother listed as Elizabeth, as Mary and as Susannah, but no proof has ever been offered.
I don't know where "Francis" comes from unless it is because of Valentine's wife, Francis Branham, or his mother-in-law, Francis Baskett.
I would love to see some proof that Francis is also the name of Valentine's mother. In fact, I'd love to see some proof no matter what her name is. That would be a real break-through.