The Holly Bears The Crown is an album by The Young Tradition with Shirley and Dolly Collins and other guest musicians.
A few weeks later musical and financial differences caused the break-up of The Young Tradition.
The only tracks on which everyone appears are the first song ("The Boar's Head Carol") and the last ("Bring Us in Good Ale").
Peter Bellamy later carved out a successful solo career; both Shirley and Dolly Collins also had successful careers both before and after (Shirley Collins has done more work in the folk music field than her sister).
These later appeared on a compilation called The Classic Collection (ostensibly by Shirley Collins) in 2004.