le Fleming (1960), p. H29. le Fleming, H.M. (November 1960) [1953]. White, D.E. (ed.). The Locomotives of the Great Western Railway, part eight: Modern Passenger Classes (2nd ed.). Kenilworth: RCTS. p. H29. OCLC500544523.
le Fleming (1960), p. H30. le Fleming, H.M. (November 1960) [1953]. White, D.E. (ed.). The Locomotives of the Great Western Railway, part eight: Modern Passenger Classes (2nd ed.). Kenilworth: RCTS. p. H29. OCLC500544523.
Bryan, Tim (1995). The Great Western at War 1939-1945 (1 ed.). Yeovil: Patrick Stephens. p. 94. ISBN1-85260-479-4. OCLC60238810.
Stewart-David, David; Wood, Peter (July 2014). "The role of railways in the Second World War". The Railway Magazine. Vol. 160, no. 1, 360. Horncastle: Mortons Media. p. 50. ISSN0033-8923.