Private correspondence, March-October 1801, of Alexander Walker during which time he acted as civil commissioner in the operation against the Pychy Raja, subsequently returning to Calicut., 1801., MS.13612. Correspondence and papers, private and official, of Brigadier-General Alexander Walker., MSS.13601-14193. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/24784 Accessed September 30, 2024.