Webb 1964a, p. 678. Webb, David R. (September 1964a). Cooke, B.W.C. (ed.). "Between the Solway and Sellafield: Part One". The Railway Magazine. 110 (761). London: Tothill Press Limited. ISSN0033-8923.
Jowett 1989, Map 36. Jowett, Alan (March 1989). Jowett's Railway Atlas of Great Britain and Ireland: From Pre-Grouping to the Present Day (1st ed.). Sparkford: Patrick Stephens Ltd. ISBN978-1-85260-086-0. OCLC22311137.