The American Story, Penguin, Combined Volume. Penguin. 24 de octubre de 2017. ISBN9781497010635. Consultado el 22 de junio de 2017. «An area of overlapping territory was created within which the two companies were not permitted to establish colonies within one hundred miles of each other.»
Tarter, Brent. «Old Dominion». Encyclopedia Virginia. Virginia Foundation for the Humanities. Consultado el 29 de noviembre de 2016.
jstor.org
Holly Brewer, "Entailing Aristocracy in Colonial Virginia: 'Ancient Feudal Restraints' and Revolutionary Reform," William and Mary Quarterly (1997) 54#2 307–346 in JSTOR
Richard B. Morris, "Primogeniture and Entailed Estates in America," Columbia Law Review, 27 (Jan. 1927), 24–51. in JSTOR
