Doherty, Frank J., The Settlers of the Beekman Patent, Dutchess County, New York: An historical and genealogical Study of all the 18th century settlers in the patent, six volumes, orig. pub. by Frank J. Doherty, Pleasant Valley, NY, 1990–2001.

Online database: AmericanAncestors.org, New England Historic Genealogical Society, 2003.