Steve, see the ca.1785 text I posted above.

The *tunes* seem not to overlap. "Tom" goes to two or three possibly related sing-songy tunes. The exception is Oscar Brand's version, which seems to be rewritten, edited, and expanded from that in Downes & Siegmeister's "Treasury of American Song." That in turn is based on the version printed by Helen Harkness Flanders, collected in Vermont in 1930.

Brand's melody resembles Flanders's, but is more tuneful.

Brian goes to "Villikins," "Irish Washerwoman," "The Laird o' Cockpen," something akin to "The Wagoner's Lad," and others.

Do you know any more about the tunes?

Strangely, I've never encountered it matched with the modal jig called "Bryan O'Lynn."