1 item Letter from George Edward Young, Soho Engine Works, Shildon to John Wesley Hackworth c/o John Gray, London and Brighton Railway, Brighton
1 item Letter from Timothy Hackworth Sr., 7 Randles [sic], King St, Cheap side to John Wesley Hackworth Soho works, Shildon
1 item Letter from Timothy Hackworth Sr., London Bridge Station to John Wesley Hackworth, Soho Works, Shildon
1 item Letter from Zerah Colburn, Office of ‘The Engineer’, The Strand, London to John Wesley Hackworth
1 item Letter from John Bone, Newcastle upon Tyne to Mrs John Hackworth [Ann Hackworth (Nee Turner)], c/o Mrs Turner, High Terrace, Darlington
1 item Letter from Timothy Hackworth Sr., No 7 Randalls, King Street, Cheap Side to John Wesley Hackworth
4 items Letter from an unknown sender, Dowlais Iron Works, Merthyr Tydril to John Wesley Hackworth Engine Works, Darlington
7 items Letter from an unknown sender, Dowlais Iron Works, Merthyr Tydril to John Wesley Hackworth, Darlington Engine Works
1 item Partial letter/draft notes from John Wesley Hackworth to Editor, Darlington and Richmond Herald
1 item Envelope from an unknown sender in St John’s Wood to John Wesley Hackworth, Consulting Engineer, Darlington
1 bundle Letter from John Wesley Hackworth, under the pseudonym of ‘Wylam’ to ‘Editor’ presumably sent to various editors including Editor of the Daily Herald
1 item Letter from Timothy Hackworth Sr., No 7 Randalls, King Street, Cheap Side to John Wesley Hackworth
1 item Letter from Timothy Hackworth Sr., No 7 Randalls, King Street, Cheap Side to John Wesley Hackworth
1 item Letter from Timothy Hackworth Sr., 7 Randles [sic], King St, Cheap side to John Wesley Hackworth, Soho Works, Shildon
1 item Letter from Timothy Hackworth Sr., J Aldridge Coffee House, Brighton to John Wesley Hackworth, Soho Works, Shildon
1 item Letter from John Wesley Hackworth, Soho Works, Shildon to the editors of the Mining Journal, Railway Times, Herpath’s Railway Journal, Leeds Mercury and the Gateshead Observer
1 item Letter from John Wesley Hackworth, Priestgate Engine Works, Darlington to Editor, ‘The Engineer’
4 items Letter from Zerah Colburn, Office of ‘The Engineer’, The Strand, London to John Wesley Hackworth
7 items Letter and article from John Wesley Hackworth, Engine Works, Darlington to Editor, Newcastle Daily Chronicle
2 items Letter and form from H. Reader Lack, Controller General, the Patent Office, London to John Wesley Hackworth, Darlington