I have been singing in many many folk clubs in over 50 years, i have heard.. gold watch blues and colours, about 6 times in all, that is not very often but very occasionally, i have not heard Walters songs that often, certainly more often than donovans, unfortunately what i have heard is more of the music hall type.
donovan does play guitar in a folk style, that of maybelle carter, and many years ago he was a regular at st albans folk club, he is a very pleasant person, who is interested in traditional music he turned up to see martin carthy at fastnet maritime festival 3 years ago.