CJB - if you send and email to folk (at) brighton.co.uk, I will reply with the e-addresses of both John Copper and Jon & Jill Dudley.
I was given copy of the document that you put on dropbox but I have lost my copy. I seem to remember Val Wagstaff, the then organiser of that Brighton folk club telling me that she has typed out Bob's hand-written article to make the document you posted.