Faulkner's comments confirm that it's the song I guessed at, though doubtless it differs from the broadside, of which the Williams text is a shortened derivation. The Hammond and Sharp sets are unpublished so far as I know. The Greig-Duncan examples (4 published) are rather variant, and seem to be specifically Scottish adaptations, though containing some of the same material and esentially the same refrain. The Drogheda set begins in much the same way as the English examples, but that's all I know.