Dear Sandy,
The history of Colonel Valentine Sevier and wife Joanna Goad. His son General John Sevier are fairly documented. I’m not sure exactly what you’re after. By his first wife, Sarah Hawkins, Sevier had ten children, and by his second wife an unknown Cherokee Indian, he had eight children. Grandson Valentine Sevier was a legitimate son. He & Mary Arnett had John Sevier that married Anna Friend. As for Anna, you’d have to follow her tree up and see where it goes. It would have to be either Creek or Cherokee. Sorry, I personally have never tracked their history.