I inadvertently found myself wandering into the Cooper Gallery on Saturday and saw this exhibition http://alternativebarnsley.wordpress.com/2013/06/03/news-kenneth-graham-cooper/ Maybe something you find of interest?
a bit more about him http://www.barnsleylive.co.uk/visit/cooper-gallery/collections/other-collectors/barnsley-market/
Thanks mate, I'll be able to go see that over the next couple of weeks. I think there will be great interest, smashing drawings.