Jim,
Very interesting account of the ballad from Zimmerman. It actually helps a lot to understand the traditional ballad form as described here and when combined with the historical and geographic contexts, it makes the whole thing easier to understand.

All the versions posted here and in the database are far longer than any I have heard sung and it seems that performers pick and choose their preferred verses. I think I will find it easier to choose mine now.

Thanks again all. Marvelous stuff.