Lucky you, I bought a first edition of Motherwell, 1827, about 2 weeks ago, and found it didn't have the Appendix with all the tunes collected and engraved by Andrew Blaikie. Child pointed out that the piece (first verse only, first of those in Bronson) was from Blaikie. For the benefit of you that don't have Child the only other text Child has is that noted by Sandy above, in Motherwell's 'Minstrelsy', in the introduction, p lxxiv-v, in a footnote.