Well the original post repeatedly referred to earlier versions (back to 1948, only a year or two later than Greensleeves ;-) ) in some archives at Indiana University (Bloomington?).

The song is not I think a great gem, but it may indeed be traditional in some folkishly meaningful sense.

As far as writing F*@# for Fuck, I don't see the point. It doesn't protect any children that I've ever met. If they're able to read Fuck they're able to decipher F*@#. Personally, I first learned the word reading D H Lawrence, and thought it was an English dialect word for a couple of years before I ran into it in speech here in Seattle. Wasn't till I was a freshman at Yale (with a couple of dorm buddies from Brooklyn) that I got some idea of the true range of nuance the word can afford when pressed. But this song is a lightweight.

Haruo