Malcolm,

   The Nick Reynolds/Ovid Young (Kingston Trio) version does indeed use the Somerset tune. This happens to be the version that I heard first, a long time ago, and the one that I learned. I had forgotten where it came from until recently. Not surprizingly, it flows a bit more smoothly than some of the other folk revival versions. I would say that it is still the tune that makes all of this unique. T.O.M.