This collection consists of the personal papers of Lady Louisa Egerton, née Cavendish (1835-1907). It primarily comprises correspondence, including letters from Lady Louisa's sister-in-law Lady Edward (Emma) Cavendish concerning the health of Lord Edward Cavendish. There is also correspondence concerning collections, including items at Hardwick Hall and the creation of a catalogue of prints and drawings at Chatsworth by Sir James Lacaita, who also compiled a four-volume catalogue of the Duke of Devonshire's Library, published in 1879.
In addition there are notes made by Lady Louisa Egerton providing updates to the 6th Duke of Devonshire's Handbook of Chatsworth and Hardwick (published in 1844), and notes made by Lady Louisa on one of the Cavendish family's other properties, Compton Place in Eastbourne.
Finally there is an Annual Report for Flookburgh Infant School dating from 1868: Louisa Egerton was patroness of the school, which was located on the Cartmel peninsula in Lancashire (now in Cumbria), near her childhood home of Holker Hall.