The Yetties were on at Sidmouth Folk Week this year, though not, I think, all of the original members. The Wurzels were another West Country favourite group, even after Adge Cutler died prematurely: I have a CD where thay finish up with a send-up of disco tricks in a "different" version of "Combine Harvester".
Sorry, thread drift: I also love the Corries' music, "Dark Lochnagar" being a favourite. Sadly, as in another thread, Paddie Bell is no longer with us, but the music lives on. I got a double album CD which included one she did with Finbar Furey, which is superb.
TB