Cokayne, G. E.; Gibbs, Vicary; Doubleday, H. A. (1913). The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, London: St Catherine's Press, Vol. III, p. 262.
McCreery, Christopher (2008). The Maple Leaf and the White Cross: A History of St. John Ambulance and the Most Venerable Order of the Hospital of St. John of Jerusalem in Canada. Toronto: Dundurn Press. pp. 238–239. ISBN978-1-55002-740-2. OCLC696024272.