^Burke, Sir Bernard; Burke, Ashworth P., eds. (1931). A Genealogical and Heraldic History of the Peerage and Baronetage, The Privy Council and Knightage (英語) (89th ed.). London: Burke's Peerage Limited. p. 2075.
^Who Was Who 1929–1941 (英語). Vol. III (2nd ed.). London: Adam & Charles Black. 1967 [1941]. p. 1187.
^Who Was Who 1971–1980 (英語). Vol. VII. London: Adam & Charles Black. 1981. p. 698. ISBN0-7136-2176-1。