John Rylands Library library became one of the first to collect historical family records. Librarians at John Rylands before its merger include Edward Gordon Duff in 1899 and 1900 and Henry Guppy between 1899 and 1948 (joint Librarian with Duff until 1900). Duff was responsible for the original library catalogue, compiled between 1893 and 1899: "Catalogue of the Printed Books and Manuscripts in the John Rylands Library, Manchester"; ed. E. G. Duff. Manchester: J. E. Cornish, 1899. 3 vols. The cataloguing of the books was done by Alice Margaret Cooke, a graduate of the Victoria University. Dr Guppy began publication of the "Bulletin
Peter Rylands parliamentary by-election in Burnley, where he was re-elected in 1880 and 1885. When the Liberals split over the First Home Rule Bill, Rylands joined the breakaway Liberal Unionists, and was returned to the House of Commons at the 1886 general election as a Liberal Unionist. He held the seat until his death on 8 February 1887 at the age of 67. Rylands lived at Massey Hall, Thelwall which he left to the local authority for educational purposes. Rylands married twice. He had three sons by his second wife Caroline Reynolds, whom he married in 1861. His eldest son, the author