The lyrics Tom Bliss uses on Silverlode are what I reproduced above and which he credits as Trad, not Trad/Arr. He's usually reasonably careful about these things, and they are pretty much what the Witches sing (on Out Of Bed). As two of them were on the Newcastle Folk Degree at the time they did the arrangement, they were rather well placed to do an authentic one. What Show Of Hands do is very slowed down and dirge-like.

The reference to the Protestant Association using a blue cockade strikes me as slightly odd since it was previously associated with the Jacobites. So perhaps the colour has as much meaning as a football strip, possiby being changed for away matches.