The issue of Railway Progress features an interview with Dick Dilworth from EMD. I worked at the locomotive division of GM with a guy who saved everything.
1953 Railway Progress EMD Electro-Motive GM Locomotives Rebuilding Facilities
RAILWAY PROGRESS MAGAZINE MAY 1958
Railway Technical Publication:BR-ER-Resignalling At Thrumpton, Retford
1950 & 1958 Railway Executive & BTC Standard Codes for Telegrams Railway Book x2
Canadian Pacific Railway, Colour publication 1926 Legends of the St Lawrence
THE WNESLEYDALE RAILWAY - DALESMAN PUBLICATION - 1984 EDITION BOOK