Correspondence grouped according to creator. Features correspondence with Owen Ward, Martin Watts, Jesse Wightman, Chris Wilson, Paul Wilson, T E Woolrich, Three Mills Warehouse, Middlesex CRO, Metropolitan Water Board, Science Museum, Watford Council, Bodleian Library, Ministry of Works, Birmingham Post, Canterbury City Librarian, Castle Museum York, Lincolnshire archivist, Somerset and Dorset Notes and Queries, Castle Museum Norwich, Lancashire County Librarian, Imperial College of Science and Technology, David and Charles Solicitors, Museum of English Rural Life, Guildford Museum, Museum of the History of Science, Cleary Foundation, Mills Section Chairman, British Library, Institution of Civil Engineers and British Library Archivist