FOLK MUSIC, UK
FOLK MUSIC magazine was founded and edited by Karl Dallas who, at that time, was principally a journalist on the folk music scene. The first issue of FOLK MUSIC was published in (or around) November 1963.
Below: April 1964, Vol 1, issue 4. It contains a five page article entitled "A Letter to Bob Dylan From Nigel Denver". The latter was a London-based Scottish folk singer whom Dylan had met during his 1962-1963 trip to London.Thank you to Ian Woodward for the information.