Cromford is an NLR 0-6-0 goods tank engine who works on the Bluebell Railway.
Cromford was built in 1880 and was used to shunt and pull light passenger trains around Derbyshire. He was loaned to Barrow Hill Engine Sheds in 1999, and returned to the Bluebell Railway in 2008. He is currently in need of an overhaul.
Stepney mentioned "Cromford" while talking to Edward about the Bluebell Railway. Then, he and "Adams" had no names, so the others nicknamed him "Cromford". According to him, the Controller was not aware of the name change.