The Folkways record mentioned above can be special-ordered as a CD. I have it, as I was a student of Kenny Goldstein's. I don't much recommend it as listening; alongside the good singers, Kenny pressed into service several folklorists, including himself and Jan Brunvand (!) But the notes are crucial!
The English Folk Song and Dance's publication Root & Branch did an article with a historical flow chart on the song. It's available from the EFDSS. (Sorry, no blicky! go to www.efdss.org)