There's a fairly amazing photo which was taken I think in Aberdeen in the 1960s which has all 3 of "The Humblbums", along with "The McCalmans", Jean Redpath, Finbar & Eddie Furey, Hamish Henderson, Cyril Tawney, Arthur Argo, Andy Ramage, Archie Fisher and Aly Bain and 2 others.

I saw Billy Connolly many times in the early 70s, before he hit the big time. I can certainly remember seeing him at Forfar Folk Club, on the back of a lorry in a tent at the Aberfeldy Folk Festival [ 1974 ? ], at a rock festival in Grangemouth, and I once booked him for £40 for Aberdeen University Folk Club, probably 1973, and again in 1974. Most of his repertoire at that time was recorded on the LPs he made for Transatlantic, probably more memorable for the stories rather than the music, to be honest.