Bluefaced Leicester Sheep Breeders Association. “The Breed.” http://www.blueleicester.co.uk/breed/breed.html (accessed November 2, 2014).
Bluefaced Leicester Union of North America. “History.” http://bflsheep.com/breed-info/history/ (accessed November 2, 2014).
Burke, John Bernard. Genealogical and Heraldic History of the Landed Gentry of Great Britain and Ireland. 5th edition with supplement and addenda.
London: Harrison & Sons, 1875. Vol. 1, p. 309: Matthew Culley’s dates.
Cheviot Sheep Society. “History.” http://www.cheviotsheep.org/about/history.html (accessed November 2, 2014).
Crews, Ed. “Rare Sheep from Hog Island and Leicester. Colonial Williamsburg Journal (Summer 2007): http://www.history.org/Foundation/journal/Summer07/sheep.cfm (accessed November 2, 2014).
Dohner, Janet Vorwald. The Encyclopedia of Historic and Endangered Livestock and Poultry Breeds. New Haven: Yale University Press, 2001.
Hall, Stephen J. G., and Juliet Clutton-Brock. Two Hundred Years of British Farm Livestock. London: British Museum (Natural History), 1995.
Lelli, Mark. “An Introduction to Mule Sheep: The Bluefaced Leicesters Link to Grass Fed Lamb.” http://www.muleflock.com/an%20introduction.pdf (accesssed November 23, 2012).
Ryder, Michael L. Sheep and Man. London: Duckworth, 1983.
Thirsk, Joan. The Agrarian History of England and Wales. Volume 5, 1: 1640–1750, Regional Farming Systems. Cambridge, England, and New York: Cambridge University Press, 1984.
Trow-Smith, Robert. A History of British Livestock Husbandry, 1700–1900. London: Routledge and Kegan Paul, 1959.
Wood, Roger J., and Vítězslav Orel. Genetic Prehistory in Selective Breeding: A Prelude to Mendel. Oxford, England: Oxford University Press, 2001.
Wykes, David L. “Robert Bakewell (1725–1795) of Dishley: Farmer and Livestock Improver.” The Agricultural History Review 52, no. 1 (2004): 38–55.