Letter book of the 9th Marquess of Lothian, containing copies of letters written to or for the Marquess by James Watson, his assistant factor and personal secretary., 1872-1876., MS.5798. Manuscripts from the library at Newbattle Abbey., MSS.5730-5841. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/11982 Accessed September 24, 2024.