Second draft of a history of the lower Niger in the nineteenth century, part 3., [?1935-?1939.], MS.20331. Typescript drafts, both much corrected and added to, with parts of a third, of a history of the lower Niger in the nineteenth century; a brief account of the administrations is followed by a detailed postal history., MSS.20327-20332. National Library of Scotland Archives and Manuscripts Division. https://manuscripts.nls.uk/repositories/2/archival_objects/43214 Accessed April 23, 2024.