That's one trouble with Child — he gives few tunes, and it can only be a matter of conjecture as to what tune might have been used for most of his versions. He was a literary professor, only really interested in printing the word-variants which had previously appeared in print in collections by Percy, Douce, &c. Bronson's later superb compilation of The Traditional Tunes of the Child Ballads rarely relates any particular air he publishes to any specific version in Child. And in response to Snuffy's question above, and speaking in general terms, any ballad in normal ballad-metre COULD be sung to any tune associated with any of them It's only by convention that this particular tune is called Willie o Winsbury and that one is called Young Hunting. But, further to Snuffy's question, does not the migration of that particular chorus, irrelevant to the 'hangman' theme but much associated with Cowdenknowes, suggest that that version would most probably have been sung to a tune conventionally associated with the latter?