Samuel Bayard in 'Dance to the Fiddle, March to the Fife' 1982, gives 8 versions of the tune that he collected in Pennsylvania, and identifies O'Neill's # 1520 as the same tune. He give references to many other published copies. He came to the conclusion that the tune came from putting together parts of two 18th century Scots tunes "Highway to Edinburgh/ (Bonny) Black Eagle" and "Rose Tree" (earlier, "The Gimblet") (find both from the Scots tune index on my website).