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WYNKOOP, Henry, a Delegate and a Representative from Pennsylvania; born in Northampton Township, Bucks County, Pa., March 2, 1737; completed English and classical studies; member of the Pennsylvania Assembly in 1760 and 1761; associate justice of Bucks County Courts 1764-1777 and president judge 1777-1789; member of the committee of observation in 1774; delegate to the provincial conferences of July 15, 1774, and June 18, 1775; major of Bucks County Associated Battalions; member of the general committee of safety in 1776 and 1777; Member of the Continental Congress from 1779 to 1782; justice of the high court of errors and appeals from 1783 to 1789; elected to the First Congress (March 4, 1789-March 3, 1791); appointed associate justice of Bucks County, Pa., and served until his death in that county on March 25, 1816; interment in the graveyard of the Low Dutch Reformed Church, Richboro, Pa.

View Record in the Biographical Directory of the U.S. Congress

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External Research Collections

Bucks County Historical Society

Doylestown, PA
Papers: 1777-1806, 49 items. Letters from Henry Wynkoop to Dr. Reading Beattie, of Fallsington, Pa., written while Wynkoop was a member of the first U.S. Congress in New York, which describes the organization of the first session, leading personalities, political questions, and other subjects; barracks supply account (Mar. 1777), letter from Newton, Pa., and list of people in charge of billeting the poor and in charge of stores in Bucks County, Pa. (1777); charge to the first grand jury delivered by Wynkoop (1777); certification to appraise the estate of Charity Bennet (1784); and receipt regarding the estates of Johnathan Duboise (1806).
Papers: In the W. W. H. (William Watts Hart) Davis. Papers, 1727-1905, 4.5 linear feet. Correspondents include Henry Wynkoop.

Brooklyn Historical Society

Brooklyn, NY
Papers: March 12, 1788. Deed. Finding aid in repository.

Historical Society of Pennsylvania

Philadelphia, PA
Papers: At least 5 letters (1789) in the Gratz collection.

Library of Congress
Manuscript Division

Washington, DC
Papers: 1778, 1 item. Letter of Henry Wynkoop, 1778 August 10.

Smithsonian Institution Archives

Washington, DC
Papers: At least 1 item (1789) in the Hull collection of letters relating to the Adams family.

University of Pennsylvania Library
Rare Book and Manuscript Library Collections

Philadelphia, PA
Papers: 1787-1788, 2 letters. The first letter from Henry Wynkoop is written to the Philadelphia Society for Promoting Agriculture on August 13, 1787, and concerns the use of plaster of Paris as a grass manure. The second letter from Henry Wynkoop is written to Samuel Powel on August 16, 1788, and concerns the Hessian fly.
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Bibliography / Further Reading

Beatty, Joseph M., Jr. "The Letters of Judge Henry Wynkoop, Representative From Pennsylvania to the First Congress of the United States." Pennsylvania Magazine of History and Biography 38 (January 1914): 39-64, 183-205.

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