Okay, so I'm 3 years late on this, but maybe I'll get extra points for using the search and not starting a new thread. ;-)

Anyhow, Mister and I do this song a lot, as apparently it's hugely popular with reenactors. We have the Holding Up the Other Half of the Sky (or whatever it's called) CD, which uses a melody similar to "Her Mantle So Green." So we got to wondering. . . which melody for this song is older?