Jacobus S. Bruyn

Jacobus Severyn Bruyn (April 7, 1749 – May 25, 1823) was an American politician from Ulster County, New York. 
Early life.
Bruyn was born on April 7, 1749 in Shawangunk, New York. He was a son of Jacobus Bruyn and Jane (née Graham) Pruyn (d. 1764). Among his siblings was elder sister Gertruyd Bruyn (the wife of Cornelius DuBois), twin brother Severyn Tenhout Bruyn (also a New York Assemblymen), brother Johannes Bruyn (also a New York Assemblymen and member of New York State Senate; married Margaret DeWitt, a daughter of Col. Charles DeWitt and Blandina DuBois; father of Charles DeWitt Bruyn), sister Mary Bruyn (wife of Nicholas Hardenberg), and brother Cornelius Bruyn (also a New York Assemblymen).
Career.
In April 1797, Bruyn was elected to succeed his brother Johannes as a Democratic-Republican New York Assemblymen from Ulster County in the 21st and 22nd New York State Legislatures from July 1, 1797 until June 30, 1799. After two years, he was succeeded by the same brother he had replaced. In 1800, he was elected to a one-year term in the New York State Senate to fill the vacancy left by John Addison for the 24th New York State Legislature. His seat was one of the 12 representing the Middle District which then consisted of Dutchess, Orange, Ulster, Columbia, Delaware, Rockland and Greene counties. In April 1801, Bruyn was reelected to a four-year term, serving in the 25th, 26th, 27th and 28th New York State Legislatures until June 30, 1805.
Personal life.
Bruyn was married to Jenneke DeWitt (1755–1823), a daughter of Andries J. DeWitt and Blandina Elmendorf (née Ten Eyck) DeWitt. Jenneke was a niece of Col. Charles DeWitt and a first cousin of Margaret DeWitt (the wife of Jacobus' brother Johannes). Together, they were the parents of:
Bruyn died in Wawarsing, New York on May 25, 1823 and was buried at Wawarsing Cemetery in Wawarsing.