I was a member of the NSG for a short time in the mid-late ‘50’s. My brother Les Tanner was Secretary. For a while the NSG amalgamated with the Limestone Club based at Knight Stainforth Hall and next to the New Inn in Clapham. It was shortly after that I moved away and lost touch.
in response to an earlier query as to whether the NSG had any cave divers, the answer is Yes - Bob Leakey who did a lot of work cave surveying in the Dales and partic’ Mossdales. Bob also attended the Peak Cavern tragedy and along with another diver attempted to reach the young guy trapped there (Neil Moss) via the previously unexplored stream outlet but sadly, were too late to save him.