I just noticed this interesting article in the 'Derby Evening
Telegraph':

http://tinyurl.com/bu98x

"Our recent runaway train mystery continues to draw responses. As ever,
Bygones' readers have come up trumps and managed to piece together the
entire story of the diesel loco which derailed just outside Derby
Station on October 3, 1962 - the day the railways were deserted due to
an NUR strike over the Beeching cuts."