As far as I remember, the "Rout of the Blues", or "Scarborough Sands" was being sung in York Folk Clubs around 1966 or so. Dave Hillery had found the words in a collection in York Library, which I think was "Ingledew", liked them and put together a tune adapted from "The Streets of Laredo". The Dransfields were frequent guests at the Lowther in York, as they only lived over in Harrogate and were cheap (Honest!). From memory, I think they were friends with Dave Hillery and used his tune together with the "Salisbury Plain" set of words.