Butterley Company correspondence file on the purchase of the Aldercar Hall, Langley Mill, from A.B. Wright, in 1937, also including later correspondence on proposals to turn Aldercar Hall into a hostel to house trainees entering the coal mining industr Including loose plan of Langley Farm showing area of Aldercar Hall estate, including Aldercar Meadows, 1933, and plan of land near Aldercar Hall, 1936 Nov 1925-Jul 1946