I was partly responsible for getting Elton Hayes at the Robin Hood, Potters Bar. We got hold of him by getting onto the BBC who passed our query on to his agent. He was apparently so surprised at being asked that he couldn't resist accepting the invitation! (he was retired and running a chicken farm, I think in Suffolk at the time).
He appeared at the Hampstead club, I think a couple of weeks after the Robin Hood.
Talking of the guitar classes in the early 60's at C.Sharpe House, anyone recall John Pearse? (who took the classes) I believe he emigrated to the States back in the late 60's.