Correspondence, mostly of the lairds of Gask and their immediate families, including incoming letters and copies of outgoing letters., 1746-1750., Adv.MS.82.1.4. Family and estate papers of the Oliphant family of Gask., Adv.MSS.82.1.1-82.9.16. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/17498 Accessed September 24, 2024.