Alvan Purdy, was the son of Abraham Purdy, Esq., for many years a Lieutenant of Militia for the Manor of Cortlandt. This individual erected the present mansion, A. D. 1775. The Purdy's have long been possessed of estates in this town, and are lineally descended from the Purdys of Rye and White Plains. Of this family was Joseph Purdy, one of the proprietors of the White Plains and the Lame Will's purchase in Rye, A. D., 1678. The surviving sons of the late Lieut. Alvan Purdy, are Abraham, of Goshen county, James, post master of Yorktown, and Alvan, proprietor of the homestead.

In the vicinity of Crompond and bordering on King street is the residence of the Hon. Henry White one of the judges of the late Court of Common Pleas in this county. Judge White is the son of Ebenezer White, M. D., by his wife Helena Bartow, and grandson of the Rev. Ebenezer White of Southampton Long Island. Dr. White of Yorktown through the whole course of the Revolution sustained the character of a patriot, with that devotion and firmness which characterised the many at that eventful period of our history. It appears that the enemy made several unsuccessful attempts to capture this distinguished individual. On one occasion they were desirous of exchanging the doctor for a British surgeon then in the hands of the Americans. To efiect his surprisal a large party of Light Horse were despatched to Crompond, with strict orders to surround his dwelling and make him prisoner. Some kind friend however, gave the doctor timely warning which enabled him to escape.