I was in Heritage 1965-1969, and some of you will have seen my photos that Richard Mellish linked to: https://www.hughmillerphoto.com/Music/Oxford-University-Heritage/
You might also like https://www.hughmillerphoto.com/Music/Folk-performers-from-the-60s/
I'd love to see a copy of MikeofNorthumbria's account - but I don't know how to PM him on Mudcat. Can anyone help? An email address for me is on the photo pages I've linked to.
Thanks.