Correspondence concerning propaganda for Ayr., Winter 1926-1927., Acc.3721/181/11. Papers and correspondence of the Scottish Secretariat, and of Roland Eugene Muirhead., Acc.3721/1-263. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/85424 Accessed September 23, 2024.