Accrual to the Hackworth family archive, collected by the Hackworth family , made in the United Kingdom 1827 - c1900. Three early letters probably detailing the running of the Stockton and Darlington Railway Three letters Joseph Pease to Timothy Hackworth (1827, 1829), one letter Robert Stephenson to Timothy Hackworth (1828). Large framed drawing 'Loco engine for St Petersburg Railway Manufactured by Timothy Hackworth Engineer New Shildon Sept 1836' Printed, framed engineering drawings taken from patent documents annotated by Robert Young 'Hackworth's Wylam Engine', 'Blenkinsop Loco, Stephenson's, Brunton's', 'Stephenson's Killingworth Engines' Photograph of fountain in Shildon park, bearing a representation of the "Royal George"; autographical Memorial of Eminent Men of Science Engineers and Mechanics of the Nineteenth Century (copies of signatures)