Letters of George Campbell Hay, and of his mother, Catherine, to Sorley MacLean; with (ff.66-90) a discrete sub-section containing drafts of some of his poems with editorial notes and galley proofs., 1940-1978, n.d., MS.29534. 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/25768 Accessed September 24, 2024.