Correspondence of various members of the families of Haldane and Burdon Sanderson, and other miscellaneous papers., 1768-1939, undated., MSS.6102-6109. Correspondence and papers of Richard Burdon Haldane, Viscount Haldane of Cloan (1856-1928), the statesman, lawyer and philosopher, and of his sister, Elizabeth Sanderson Haldane (1862-1937), philanthropist and author., MSS.5901-6109. National Library of Scotland Archives and Manuscripts Division. https://manuscripts.nls.uk/repositories/2/archival_objects/12586 Accessed July 27, 2024.