- 1R & W Hawthorn Leslie & Co Archive (HL)
1846-1963, fonds - 2Papers of J O P Hughes (HUG)
c 1950 - Autumn 1975, fonds - 3Records of Nasmyth, Wilson & Co Ltd, Locomotive Builders, Patricroft (NAS)
1839 - 1938, fonds - 4Crewe Locomotive Works Drawings (CREWE)
13 March 1845-15 May 1989, fonds - 5Engineering Drawings from the Derby Carriage and Wagon Works (DERBYC&W)
c 1877 - 1965, fonds - 6Highbridge Works Drawings (HIGHB)
1875 - 1930, fonds - 7Melton Constable Carriage and Wagon Works Drawings (MELT)
1881 - 1936, fonds - 8Plaistow Works Locomotive Drawings (PLAI)
c 1880 to 1938, fonds - 9Stoke Works Drawings (STOKE)
1868 - 1927, fonds - 10Records of North British Locomotive Company Ltd & Constituent Companies (NBL)
1835 - 1959, fonds - 11Gorton Works Contractors' Drawings (GOR)
1850 - 1950, fonds - 12Stratford Works Drawing Office Records (STRAT)
1847 - 1963, fonds - 13Papers relating to Francis Trevithick's biography of his father Richard Trevithick (TREVF)
1746 - 1979, fonds - 14Records from the library of Sir Daniel Gooch, 1st Baronet (GOO)
1840-1862, fonds - 15Papers of John Melling, Locomotive Superintendent (MEL)
1837 - 30 January 1885, fonds