Interesting to note that I have previously been misinformed about the Country of origin for the tune. That said, While Shepherds was definitely the song which it was used for by the choir in question. While Shepherds it is still sung to that tune along with about twenty other tunes during the South Yorkshire Carols, in the region to the West of Sheffield during weeks leading up towards Christmas.
Dick and Bill D - as somebody who is from Bradford, I do not recall ever hearing your verse about having him back again in local usage. We definitely finished with having eaten the poor sod!
Quack!!!
Geoff the Duck.