There is a new book about Sheffield 1925 - includes both gang wars and stories concerning the 1925 FA Cup win by the Blades - worth a read - contact the author - https://www.facebook.com/jvstocks:
Sheffield 1925
Gang Wars and Wembley Glory
Sheffield’s Most Turbulent Year
Author: John Stocks
I sorted the design, took some photos, made suggestions and did lots of proof reading (and I still think it's worth a read!)
sorry - in 1994 @ Parkwood, Paul Hobson did the Environmental Science - I did Physics and the like - building was Shirecliffe until 1988, then Parkwood, closed in 1998 - Dave