Browning, Charles H. (1898). The Magna Carta Barons and Their American Descendants. London: Genealogical Publishing Company.
Cokayne, George Edward (1916). The Complete Peerage, edited by Vicary Gibbs. Vol. IV. London: St. Catherine Press.
Richardson, Douglas (2011). Magna Carta Ancestry: A Study in Colonial and Medieval Families, ed. Kimball G. Everingham. Vol. I (2nd ed.). Salt Lake City. ISBN978-1-4499-6637-9.
Richardson, Douglas (2011). Magna Carta Ancestry: A Study in Colonial and Medieval Families, ed. Kimball G. Everingham. Vol. IV (2nd ed.). Salt Lake City. ISBN978-1-4609-9270-8.