With thanks to reader Mr. Chihara a 1965 update!
[1] July 1st, 1965 – first performance at The Trap Door with Art Garfunkel
[2] July 22, 1965 – his third performance at The Trap Door. One day before the “Ready Steady, Go”
[3] There is one another in between July 1st and July 22nd, 1965 with Jackson C Frank
See http://www.thetrapdoorfolkclub.co.uk/#/paul-simon/4557730452 for artciles on the gigs!
Paul Simon - 'Time it was...it was' 
I am looking for similar info and reviews of Jackson C Frank, from the same era–1965 and 1968. If you have any at all, or can locate them , please contact me at jimbob12404@yahoo.com I was Jack’s freidn and guardian and am trying to fnish a book about him. I cannot afford to go to the UK so I have the internet to work with. Thank you.
Hi, I will check the magazines I have from the time he was in the UK. Did you find any dates they performed together in the UK? I found an entry about a farewell shiw for JCF.
Good to hear that there will be a book about this great singer/songwriter.