As for the mis-applied tune, it's likely simpler than "Weasel" suggests. I've speculated in other discussions here that the page probably just flipped over while Irvine wasn't looking.

This old thread probably contains less useful information than the various others here on the same subject (see list of links above), but I expect that was why Bob and Alex revived it.

There are several candidates for Winsbury; Wednesbury would be as likely as any (and more than some), I should think. Child didn't discuss that aspect in this case, but see ESPB I, 399, footnote:

' "A William Wynnesbury, who was yeoman of the Guard at the time of Henry VIII, used generally to act as Lord of Misrule in the years 1508-19, and he was Friar Tuck at Greenwich in May, 1515 (see Collier's Annals of the Stage, and J. S. Brewer's Letters and Papers of Henry VIII), and this, no doubt, made the name popular with the ballad-makers." -Ward, Catalogue of Romances, etc., I, 532.   Undeniably the Lord Winsbury of our ballad might be said to have acted as a lord of misrule, but it was hardly an English (or Scots) ballad-maker of the sixteenth century that made this ballad; and Mr. Ward, probably, did not intend so to be understood.'