See also the other discussions and DT files (links above), many more recent and comprehensive than this old thread.

To return to 'T in Oklahoma's' post. For what it's worth, the tune is also in Pills, 1714, V, 117; and Dancing Master II, 2nd ed., 1714, 121. Simpson, The British Broadside Ballad and Its Music, 1966, 672-675 ('Sound a Charge') provides further detail and a MS tune of c.1642 in the same metre, which he describes as 'clearly related'.

He also refers to the c. 1701 broadside in the Crawford Collection, 'Captain Kid's Farewel to the Seas,' to the tune of 'Coming Down.' Text is in Firth, Naval Songs and Ballads, 1908, 134-137. An OCR transcription can be seen at http://www.traditionalmusic.co.uk/navel-songs-ballads/naval-songs-ballads%20-%200334.htm.

Simpson adds, 'For an illuminating study of the roots of this ballad and associated texts and tunes, see Bertrand H Bronson, "Samuel Hall's Family Tree," California Folklore, I (1942), 47-64.' This is reprinted in The Ballad as Song, University of California Press, 1969, 18-36.