This collection contains correspondence of Sir Austen Henry and Lady Enid Layard and Charlotte Maria Guest between 1869 and 1884. One series mainly comprises the correspondence of Enid Layard with her sister Charlotte Maria Guest and a smaller number from Sir Austen Henry Layard to Charlotte Maria Guest. A second series comprises a file of letters from members of the Du Cane family, including letters written by Alicia Marie Du Cane while staying with the Layards in Constantinople. Much of the material relates to Layard and the custodianship of his collection. There is also some published material relating to Layard, photographs of the Layard family, and some associated family and biographical material including objects and artefacts.