Letter to Sorley MacLean; enclosing drafts of the constitution of The Celtic Congress in Irish and Scottish Gaelic., 1949-1950., MS.29501, ff. 53-59, 61-62. Literary and personal papers of Sorley Maclean, with related papers of family members., MSS.29501-29798. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/25984 Accessed September 24, 2024.