I think this is the Yorkshire Subterranean Society's stomping ground. The YSS has a page on this forum - you could ask the question there? Or if you have access to the three excellent journals which the YSS has produced over the years you might find something in there. It's probably in Northern Caves; mine's not immediately to hand but (if all else fails) if you send a PM to remind me I can look this up, if you've no other way of getting at the information.