Recently there was long thread about the BCA. I can now post possible answers to some of the questions, such as "Why is the BCA still raising membership prices when there is a significant amount still left in its coffers?"
Pioneer Scottish cave explorer died in his 92nd year. A good account in the Grampian Speleological Group Bulletin Fifth Series Vol 3 No 4 October 2020 2-4 pp with 2 photos.