Private pilot's certificate and licence issued in favour of Robert Kirk Dickson by the New Zealand Air Department., 1947., MS.13585. Correspondence and papers of Rear-Admiral Robert Kirk Dickson (1898-1952) and of his younger brother, Midshipman Archibald Kirk Dickson (died 1916), with some papers of their father, William Kirk Dickson (1860-1949), first Librarian of the National Library of Scotland., MSS.13501-13597. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/24703 Accessed September 23, 2024.