Just been clearing out the junk from my loft and came across a couple of boxes full of old bar billiards trophies from the 80's. Most are for the Sudbury and District league but I've found two from the Newmarket & Bury St Edmunds league, one for league champs and the other for highest break, so proof the old Newmarket league did really exist and for what it's worth the picture on the emblem shows a four pin table, which is what I'm sure I remember playing.
Thought for one minute you were "doing a Milko" and considering flogging them off !
What a shame that these are probably the only known records of a once-thriving league. The fen district seems to have had an eclectic mix of the games variations: Cambridgeshire (which was really only Huntingdon) = 3pin Isle of Ely (Wisbech) = 4pin ("Snookerette") Stamford (S.Lincs) = 4pin ("Snookerette") Northamptonshire = 3pin Wellingborough = 4pin
Out of these, Northants seems to be the only one with a future.