[Thomas Dundas], Lord Dundas [1st Baron Dundas (1741-1820)], Aske, Richmond, Yorkshire, to D[ea]r Sir, February 25, 1808, Box: 1, Folder: 24. Spottiswoode & Robertson collection, MS 186. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/248819 Accessed May 23, 2024.