John Rylands the John Rylands Library, of which the famous Althorp Library, purchased by her from Earl Spencer in 1892, and Lord Crawford's manuscripts, purchased by her in 1901, form part of the contents. The library was inaugurated on 6 October 1899, when Mrs Rylands received the Freedom of the City of Manchester. The first day of opening was 1 January 1900. A posthumous grant of arms to John Rylands was obtained in 1893 in which the arms of Tennant are impaled with those of Rylands. Rylands died at his home, Longford Hall, on 11 December 1888, at the age of 87.
John Rylands Library and the fact that the valuable manuscript collections were to be housed in "that dirty, uncomfortable city ... [with] not enough light to read by, and the books they already have are wretchedly kept" (written in 1901 about the Crawford MSS.) Mrs Rylands negotiated Deeds of Agreement with her neighbours to fix the heights of future adjacent buildings. The permissible height of the building was fixed at just over 34 feet, but it was suggested that it could be taller at the centre if there was an open area around the edges, at the height of buildings that had been