Letters of, to and concerning John Gibson Lockhart; including letters concerning the death of his wife, Sophia., 1824-1858., MSS.42443-42465. Archive of John Murray, publishers., MSS.40001-43564. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/20282 Accessed September 23, 2024.