'Old airs, collected and written down by George Riddell. Begun in 1903, book II', containing airs 85-108., 1903., MS.3043. Airs of songs and ballads collected, chiefly in Buchan, with a few from Angus and elsewhere, by George Riddell, Rosehearty (died 1942)., MSS.3041-3043. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/36151 Accessed September 23, 2024.