Below are links to a variety of books about the history of Scarsdale and Westchester County.

BOOKS ABOUT WESTCHESTER COUNTY

A History of the County of Westchester, from its First Settlement to the Present Time by Robert Bolton. New York, printed by A. S. Gould, 1848.

The History of the Several Towns, Manors, and Patents of the County of Westchester, from its First Settlement to the Present Time by Robert Bolton. New York, C. F. Roper, 1881.

History of Westchester County, New York, from its Earliest Settlement to the Year 1900 by Frederic Shonnard and W. W. Spooner. New York, New York History Co., 1900.

History of Westchester County, New York, Including Morrisania, Kings Bridge, and West Farms, which have been Annexed to New York City by J. Thomas Scharf. Philadelphia, L. E. Preston & co., 1886.

Westchester County During the American Revolution, 1775-1783 by Otto Hufeland. White Plains, N. Y., Westchester County Historical Society, 1926. Due to copyright restrictions only limited searching is available online here.

Westchester County, New York, During the American Revolution by Henry Barton Dawson. Morrisania, New York City, 1886.

Westchester County and Its People by Ernest Freeland Griffin, editor. New York, Lewis Historical Pub. Co., Inc., 1946.

This is Westchester, a Study of Suburban Living by Richard F. Crandell. New York, Sterling Publishing Co., 1954

A Check List of Books, Maps, Pictures, and Other Printed Matter Relating to the Counties of Westchester and Bronx by Otto Hufeland. White Plains, N.Y., Published for Westchester County by the Westchester County Historical Society, 1929.

Proceedings of the County Board of Legislators of Westchester County. Links to most volumes from 1874 to 1922 can be found here.

Early Wills of Westchester County, New York, from 1664 to 1784 by William S. Pelletreau. New York, F.P. Harper, 1898.