US Congressman, Entrepreneur. He was a United States Representative from the State of New Jersey. He was born one of eight children to William Newbold (1736-1793), and his wife Susannah Stevens Newbold (1736-1793), in Springfield (Springfield Township), New Jersey, on August 2, 1760 (some sources say April 8, 1760). He was educated locally and later engaged in agricultural pursuits. He then entered politics and served a term as a Member of the State General Assembly from Burlington County, New Jersey, in 1797. During this time he also engaged in banking pursuits. He then decided to run for a seat in the United States Congress and was elected to succeed the outgoing United States Representative Ebenezer Elmer (1752-1843), on March 4, 1807. A Member of the Democratic-Republican (Democrat) Party, he then served New Jersey's 4th District and as an At-Large Delegate (Tenth Congress, Eleventh Congress, and Twelfth Congress), in the United States House of Representatives from March 4, 1807, to March 3, 1813. He was an unsuccessful Candidate for election to the Thirteenth Congress in 1812. Following his term in the United States Congress, he was succeeded in office by the incoming United States Representative Ephraim Bateman (1780-1829), on March 4, 1815, (elected over a year after United States Representative Thomas Newbold (1760-1823), left office due to the 4th District being inactive). After leaving the United States Congress, he resumed his agricultural pursuits and banking pursuits. He then served another term as a Member of the New Jersey General Assembly from Burlington County, New Jersey, from 1820 to 1822. He then retired from politics and returned to his agricultural pursuits and banking pursuits until his sudden and unexpected death. He passed away from a stroke at his home in Springfield (Springfield Township), New Jersey, on December 18, 1823, at the age of 63, and was buried in Upper Springfield Friends Burying Ground in Wrightstown, New Jersey. He was married twice, first to Mary Ann Taylor Newbold (1768-1811), in Chesterfield, New Jersey, on April 19, 1789, and the couple would have eleven children together. His first wife Mary passed away in Springfield, New Jersey, on September 21, 1811, at the age of 53, while he was still in office, and she was buried in Upper Springfield Friends Burying Ground in Wrightstown, New Jersey. He married for a second time to Ann Taylor Newbold (1779-1861), in Burlington, New Jersey, on July 29, 1816, with whom he had one child, a son named William Augustus Newbold (1818-1890). His second wife Ann survived him until passing away in Springfield, New Jersey, on June 11, 1861, at the age of 81, and she is buried in Upper Springfield Friends Burying Ground in Wrightstown, New Jersey.