[Eric Mackay, 7th] Lord Reay [(1773-1847)], St James Place, London, to D. Robertson, Golden Square, January 4, 1827, Box: 1, Folder: 54. Spottiswoode & Robertson collection, MS 186. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/248849 Accessed December 12, 2024.