Papers relating to the life and work of Crompton in electrical engineering and road transport, and including material relating to Crompton & Co.Ltd. and Crompton Parkinson Ltd. Comprises correspondence, books and offprints, product catalogues, photographs and brochures of the above companies. Personal material includes diaries, and numerous references to his time in the Crimea (during the war), in India (1858-60, 1890-99) and South Africa (1900).