Doherty, F. J. (1990). Settlers of the Beekman patent, Dutchess County, New York: An historical and genealogical study of all the 18th century settlers in the patent. Pleasant Valley, N.Y.: F.J. Doherty.

Doherty, Frank J. Settlers of the Beekman Patent, Dutchess County, New York: An Historical and Genealogical Study of All the 18th Century Settlers in the Patent. Pleasant Valley, N.Y.: F.J. Doherty, 1990.

Doherty, Frank J. Settlers of the Beekman Patent, Dutchess County, New York: An Historical and Genealogical Study of All the 18th Century Settlers in the Patent. Pleasant Valley, N.Y.: F.J. Doherty, 1990.