Did MacColl give any indication as to where he got this one?  I suppose there's a chance that it may have been recorded early enough to have made it into Bronson; I'll try to check during the week, and if the tune is given, I'll transcribe it to midi; I'll also try to see if the library has a copy of the record, otherwise, it would be appreciated if you would have a go.  I'm rather against posting texts without tunes nowadays (unless no tune is known); it's a bit like having just a photograph of food instead of a meal!  The abracee line doesn't appear in any other version that I've seen, so any speculation would probably be in vain without more information.

Links to related material in the DT and Forum, and to broadside copies at the Bodleian, are in this thread:  Lyr & tune add: The Broomfield Hill