Dont know about the 1950's . In the 60's when Kingmoor Yard was being built Kingmoor had austerity's to work in stone for the construction from Sandside quarry located on the line from Hincaster Junction south of Oxenholme , banked to Grayrigg and Shap . Most workings were through express freights fitted wagons by this time apart from and to locations on the line , look at various photos by Derek Cross showing a continuous stream of northbound freights in the morning ascending Shap a majority black fives with the odd 9F and other suitable locos . Coalvilles opened Hardendale Quarry to serve the Craig , theres lots of phots this traffic , lime , in 16t mins before more advanced rolling stock was available . Also traffic from Shap Summit quarry and coming in on the Keswick line at Penrith worked by other than black fives