Most of the English singers sing a truncated version of it, which does not refer to her dying, or the warning against young men.
Triona's version ("Said Johnny to Molly"), though, includes those elements, and now I am looking for that version.
Mainly Norfolk seems to think that these different versions are all related (Farewell Nancy, Farewell My Lovely Nancy, etc) so I am wondering if those verses got dropped as the song traveled further afield.