That's Greig-Duncan vol. 7, I think, which I don't have yet.  There's a text in Ord, too, The Trumpet Sounds at Burreldales, but no tune is given and it's quite a bit different from the set Clinton has quoted from.  The Old Blind Dogs do seem to have got quite a bit of their repertoire from The Gaugers, who did their research and acknowledged their sources.  Pity the OBD don't seem to have thought the tradition important enough to pass on the information.