Barent Gardenier was born in Kinderhook, New York on July 28, 1776. He received a liberal education, studied law at Litchfield Law School and was admitted to the bar. In 1801 he married Sally (Sarah) Lawrence.
Gardenier practiced in Kingston, New York and was also editor and publisher of a Federalist newspaper, the New York Courier. He was elected as a Federalist to the 10th and 11th United States Congresses, and served from March 4, 1807, to March 3, 1811.
He had a heated controversy with Senator John Armstrong relating to the latter's alleged authorship of the famous Newburgh letters, anonymous circulars in which the author (presumably Armstrong) had attempted unsuccessfully to instigate Continental Army soldiers to act against Congress at the end of the American Revolution in order to secure back pay, pensions and land grants that had been promised but were not immediately forthcoming. Armstrong denied writing the letters, but historians are of the view that Armstrong was the author. By the early 1800s Armstrong was a Democratic-Republican politician and follower of Thomas Jefferson, which caused the Federalist Gardenier to highlight Armstrong's supposed authorship of the Newburgh letters as a campaign issue.
In 1808 Gardenier fought a duel with George W. Campbell, a congressman from Tennessee, resulting from Gardenier's opposition to the Jefferson administration's trade embargo with Great Britain and France. Campbell was angered at Gardenier's speech, and in Gardenier's view included personal insults in his rebuttal speech. Gardenier challenged Campbell, and their duel was notable as being the first to be fought on what became the Bladensburg Dueling Grounds. Gardenier was wounded, but subsequently recovered and won reelection.
- Abridgement of the Debates of Congress from 1789-1856, D. Appleton & Co. 1857, vol. 3, p. 612.
- The Rep. from N.Y. on building gunboats, pp. 627–629.
- inquiry into conduct of Gen. Wilkinson, 1807; vol. iv. 1808-1813, p. 87.
- re submission to the late edicts of England & France, p. 137.
- on remunerating those who resisted the law for direct tax, p. 139.
- on prosecutions for libel, p. 192.
- re the call on the President (James Madison, 1809) for papers, p. 215.
- supports petition of Elizabeth Hamilton; also referenced on pp. 48, 124, 191, and 350.
- Hollace Carey Gordinier, Gardenier: Ephraim Gordinier, 1785-1860: His Ancestors and Descendants Including the First Two Generations of Gardeniers in America (1990), p. 2.
- Marian C. McKenna, Tapping Reeve and the Litchfield Law School (1986), p. 190.
- Joseph Rodman Drake, Fitz-Greene Halleck, The Croakers (1860), pp. 165-166.
- Jerome Bonaparte Holgate, American Genealogy: Being a History of Some of the Early Settlers of North America (1851), p. 214.
- Baltimore: Genealogical Pub. Co., Baptismal and Marriage Registers of the Old Dutch Church of Kingston, Ulster County, New York, 1660-1809 (1980), submitted to Genealogy Trails by Foxie Hagerty.
- Thurlow Weed Barnes, Life of Thurlow Weed Including His Autobiography and a Memoir (1884), volume 1, p. 56.
- Weed, Parsons and Company, List and Forms of Government of the Colony and State of New York (1879), p. 335.
- John C. Fredriksen, The United States Army: A Chronology, 1775 to the Present (2010), p 46.
- Jacob Judd, editor, The Van Cortlandt Family Papers, 1976, vol. 1, p. 94.
- Carl Edward Skeen, John Armstrong, Jr., 1758-1843: A Biography (1981), pp. 48 and 237.
- Richard Buel, America on the Brink (2005), p. 64-65.
- Ryan Chamberlain, Pistols, Politics and the Press: Dueling in 19th Century American Journalism (2009), p 36.
- Harper & Brothers, Harper's Encyclopedia of United States History from 458 A. D. to 1909 (1905), vol. 1, p. 358.
- John Thomas Scharf, editor, History of Westchester County, New York (1925), vol. 1, part 2, p. 653.
- New York Newspaper Death Notice Extracts, 1801-1890 (Barber Collection), entry for Barent Gardenier, retrieved via Ancestry.com, September 23, 2013.
- Hale Cemetery Inscriptions, 1675-1934, entry for Barent Gardenier, retrieved via Ancestry.com, September 23, 2013.
- Biographic sketch at U.S. Congress website
- The New York Civil List compiled by Franklin Benjamin Hough (pp. 69 and 448 [Addenda]; Weed, Parsons and Co., 1858)
|U.S. House of Representatives|
Martin G. Schuneman
| Member of the U.S. House of Representatives
from New York's 7th congressional district
Killian K. Van Rensselaer
John Blake, Jr.
| Member of the U.S. House of Representatives
from New York's 5th congressional district
| New York County District Attorney