Unfortunately @Jammy - nobody left in mine or the wife's family left to ask. I wouldn't be surprised if the Cowell family butchers, across the road, from Cramlington Co-op, were in business/competition at the same time. Do you know any of the Cowell family?
@Symptoms we Bedlington Station lads wouldn''t know about a library at the Top End. In Evan Martin's books he gives info on the West End Branch - Bedlington equitable Industrial Co-operative Society but that's a building I have no memory of.
I definitely remember the Co-op presence on Front Street East. That's where we had to go to get school clothing for the BGS - it wasn't the real school clothing, just a similar colour green jacket. The real BGS gear was from Rutherfords (I think) in Newcastle. We had to get the school badge from Rutherfords to sew onto the jacket pocket of the Co-op green blazer. The East End Coop shops started at the Locke building and went down to nearly to the Dun Cow.