Bev - Believe it or not, I saw the same two tours that you did.
Denny "solo" tour in LA, 2/18/1972 and with Fairport in Berkeley, 11/10/1974. I remember enjoying both, of course.
I'll add my support for Fotheringay being a great album. "The Way I Feel" is something special in my opinion. I could listen to it every day.
I enjoy "Northstar", too, but it is a much more subdued album.