Family correspondence and papers of John Buchan and Susan Buchan., 1882-1976, undated., Acc.11627/1-24. Correspondence and papers of John Buchan, 1st Baron Tweedsmuir, his wife Susan Buchan, Lady Tweedsmuir, his brother James Walter Buchan, and sister, Anna Buchan., Acc.11627/1-120. National Library of Scotland Archives and Manuscripts Division. https://manuscripts.nls.uk/repositories/2/archival_objects/110305 Accessed May 04, 2024.