Correspondence concerning trading and mercantile affairs, including correspondence of the house of Chalmers and Guthrie, Idol Lane, Tower Street, London in which Patrick Chalmers, 3rd of Auldbar (died 1826), was a partner., 1821-1844., MS.15412. Papers of the family of Chalmers of Auldbar (or Aldbar), near Brechin., MSS.15401-15519. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/37960 Accessed September 24, 2024.