- 1Archive of Robert Stephenson & Co Ltd (ROB)
1823 – c 1960, fonds - 2R & W Hawthorn Leslie & Co Archive (HL)
1846-1963, fonds - 3Report books of John Graham, Stockton and Darlington Railway Employee (GRA)
1831-1845, fonds - 4Correspondence of Henry Pease (PEAS)
27 June 1837- 29 July 1876, fonds - 5Commonplace books of an unknown engineer (CPB)
1825-1837, fonds - 6Diary of Alfred Kitching (KITC)
27 October 1843 - 9 August 1844, file - 7Letter from John Backhouse to his sister describing the opening train on the Stockton & Darlington Railway (BACK)
27 September 1825, fonds - 8Petition of the Inhabitants of York supporting the bill from the York and Newcastle Railway Company (PIY)
c 1840 - c 1860, fonds - 9Letter from John Dixon discussing steam tests and experiments on the Stockton and Darlington Railway (DIX)
28 February 1863, fonds - 10Letters (PEAS/1)
27 June 1837 - 29 July 1876, series - 11Notes (PEAS/2)
? 1870 - ? 1879, series - 12Note titled 'Stockton and Darlington Railway Jubilee' (PEAS/2/2)
? 1875 - ? 1876, item - 13Note titled 'Walworth Castle' (PEAS/2/3)
? 1845 - ? 1881, item - 14Letter from William Bouch to Henry Pease (PEAS/1/18)
13 September 1875, item - 15Letter from Henry Newton to Henry Pease (PEAS/1/19)
15 September 1875, item
