Babs, there is no question but that the lyrics of WMT are a reworking of Tannahill's original lyrics. McPeake's melody can safely be assigned to McPeake as they were the first to sing the song to that melody and it was not printed or recorded before them (and after more than a year's research I could find nothing to dispute that. One has to ignore hearsay). This makes the WMT, sung to the McPeake tune, their property and is classed as an original song, words and music McPeake. Tannahill died in 1810 so his lyrics are Trad anyway but if you sing the McPeake's version, then credit must go to them. Thir version has been recorded many times and is a very substantial money spinner so I think (and so does the MCPS and the PRS) it is only right that they should be rewarded. It is definitely not traditional in any sense.