I think Nancy composed both of these. I need to check the liner notes. I'm fairly sure it's her playing mandolin on the second one, but she and Norman play so much alike on guitar and mandolin that it's often hard to tell.
We're in luck! The liner credits are on their Wiki page.
Nancy wrote "Father's Hall", Norman wrote "Bright Days". She is credited for "mandolin, cello, vocals"; nothing about which songs which of them played what on.
Sounded right tasty no matter what the specifics.
Peter