General correspondence, 1763, chiefly of Andrew Fletcher, Lord Milton, with correspondents with surnames from A-Co., 1763., MS.16727 (part 1). Papers of the family of Fletcher of Saltoun (previously of Innerpeffer), with some of Abernethy, Lords Saltoun., MSS.16501-17880. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/38989 Accessed September 27, 2024.