Accounts and business papers of Sir Alexander Muir Mackenzie, with memoranda on Acoustics and Judicial Appointments., 1779-1810, undated., MS.1215. Correspondence and papers of the Mackenzies of Delvine and their clients., MSS.1101-1530. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/48289 Accessed September 23, 2024.