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Specification no. 3431 John Blenkinsopp, Tramway for Conveying Coals, &c.

Specification no. 11 605 George Fossick, Thomas Hackworth and Thomas Elliot, Locomotive and other boilers

Specification no. 3887 Ralph Dodds and George Stephenson, Locomotive Engines

Patent no. 8875 John Wesley Hackworth, Improvements in Valves and Valve Gear for Marine Locomotive and other motor engines

Short History of Sans Pareil by John Hicks, having restored the engine, and on presentation to the Science Museum, London

Specification no. 2448 John Wesley Hackworth, Valve Gear for Locomotive, Marine and other Engines

Specification no. 4246 John Wesley Hackworth and Albert Hackworth, Valve Gear

Declaration by William Jackson and William Mather, both of Darlington

Declaration by Thomas Sergison, Engineer of North Road, Darlington, Durham

Memorandum of agreement between John Wesley Hackworth and Robert Teasdale of Teasdale Brothers Darlington

Letter from John Vernon, Leeds Mercury, Leeds to John Wesley Hackworth

Specification no. 1094 John Wesley Hackworth, Hoisting Machines

Letter from Trowsdale, Stockton to The Editor, Stockton and Darlington Herald

Letter from William Kitching, Darlington to Timothy Hackworth Railway Tavern, Rain Hill, Nr Warrington, Lancashire

Articles and letters from John Wesley Hackworth to Editor, the Northern Echo

Letter from John Wesley Hackworth, Darlington to Editor, ‘Northern Daily Express’

Specification No. 929 David Joy, Steam Engines

Articles of agreement between John Wesley Hackworth and James Clark, William Clark and Thomas Robinson Clark, Thomas Clark and Company, Newcastle.

Envelope from an unknown sender in St John’s Wood to John Wesley Hackworth, Consulting Engineer, Darlington

Partial letters from John Wesley Hackworth to Editor, Darlington and Richmond Herald

Handwritten memorandum of agreement between John Wesley Hackworth and Lancelot Middleton

Partial letter and notes from John Wesley Hackworth, Sunderland to Editor, Railway Herald

Letter from an unknown sender, Dowlais Iron Works, Merthyr Tydril to John Wesley Hackworth Engine Works, Darlington

Letter from John Wesley Hackworth, under the pseudonym of ‘Wylam’ to ‘Editor’ presumably sent to various editors including Editor of the Daily Herald

Letter from Timothy Hackworth Sr., 7 Randles [sic], King St, Cheap side to John Wesley Hackworth, Soho Works, Shildon

Patent no. 87 John Wesley Hackworth, Improvements in Valves and Valve Gear for Marine, Locomotive and Other Engines

‘Remarks on the comparative merits of cast metal and malleable iron railways and an account of the Stockton and Darlington Railway’ Newcastle, printed by Edward Walker, Pilgrim Street

Letter from an unknown sender, Dowlais Iron Works, Merthyr Tydril to John Wesley Hackworth, Darlington Engine Works

Letter from John Wesley Hackworth, Darlington to Editor, Daily Exchange, Middlesbrough

Letter from John Wesley Hackworth, Darlington to Editor ‘The Exchange’

‘An extract from an article which appeared in the London Quarterly Review for January 1858 relative to the invention of the steam blast in the locomotive’

Drawing of John Wesley Hackworth’s valve gear (possibly a tracing)

Headed notepaper

Description of patented designs

Letter from John Wesley Hackworth, Sunderland to Editor, Railway Herald, London

Letter from John Wesley Hackworth to Editor, Manchester City News

Notes for lecture at New Shildon

‘A brief of Timothy Hackworth’s Inventions, which are further elucidated in the accompanying pages, as noted in the margin whereof’

Various versions of ‘Timothy Hackworth’s Inventions Partially Explained & Their Merits Compared with Others’

A chapter in the history of railway locomotion, Practical Mechanic’s Journal

Letter from Timothy Hackworth Sr., London Bridge Station to John Wesley Hackworth, Soho Works, Shildon

Letter from Zerah Colburn, Office of ‘The Engineer’, The Strand, London to John Wesley Hackworth

Fragment of letter from John Wesley Hackworth, Darlington to an unknown recipient

Specification no. 8875 John Wesley Hackworth, Improvements in Valves and Valve Gear for Marine, Locomotive and other Motor Engines with accompanying drawings

Notes for lecture at Southport

Research papers of John Wesley Hackworth

Correspondence accumulated by John Wesley Hackworth and Ann Hackworth (Nee Turner)

Papers of John Wesley Hackworth and Ann Hackworth (Nee Turner)

Notes of measurements

Letter from Timothy Hackworth Sr., J Aldridge Coffee House, Brighton to John Wesley Hackworth, Soho Works, Shildon