^Casserley, H. C.; Johnston, Stuart W. (1974). Locomotives at the Grouping 3: London, Midland and Scottish Railway. Ian Allan Publishing. ISBN0-7110-0554-0.
^Baxter, Bertram; Baxter, David. British Locomotive Catalogue 1825–1923, Volume 2A: London and North Western Railway and its constituent companies. Moorland Publishing Company. ISBN0-903485-51-6.