You'll find variants in Sam Henry's "Songs of the People" under "The Rambling Suilor" and "A Beggarman Cam' Ower the Lea." Also Ewan MacColl published it in "Folk Songs & Ballads of Scotland" by Oak publications ( U.S.). Of course, once you start tracking down a Child ballad, you may want to invest in a wheelbarrow just to tote around your references. Good hunting, Frank.