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Henry Seymour (May 30, 1780 - August 26, 1837) was an American merchant, banker and politician from New York.



Born in Litchfield, Litchfield County, Connecticut, Seymour was the sixth child and fifth son of Major Moses Seymour (1742-1826), a politician who served as an officer in the American Revolution, and his wife Molly (Marsh) Seymour. His brother, Horatio became a successful businessman and banker, and went on to serve two terms in the United States Senate.

In 1801 Henry Seymour left Connecticut with $300 from his father. Settling in Onondaga County, New York, he used the money to establish a general store in Pompey Hill. Seymour prospered with the arrival of new immigrants from the New England region, and soon became a prominent member of the community. In January 1807 he married Mary Ledyard Forman (1785 - 1859), of Matawan, New Jersey, daughter of General Johnathan Forman and Mary Ledyard. Together they would have six children, two boys and four girls. Their son Horatio Seymour would go on to serve twice as governor of New York and was the Democratic nominee for president in 1868, while their daughter Julia Catherine married Roscoe Conkling.[1]


Political career

Seymour began his political career in 1809 when he was selected as town clerk. He served in the War of 1812 as a quartermaster under the command of General Jacob Brown. In April 1815 he was elected to the New York State Senate, where he served until 1818 and became a loyal supporter of Martin Van Buren. After a year-long term on the Council of Appointment, Seymour won election to the New York State Assembly, where he served for two terms.[2]

In March 1819 Seymour was elected by the Bucktails majority of the New York State Legislature to the Erie Canal Commission, where he replaced Ephraim Hart, who had been a recess appointment made by Governor DeWitt Clinton after the resignation of Joseph Ellicott. Seymour addressed himself conscientiously to his job of ensuring the navigability of the canal. In 1820, he moved his family to Utica in Oneida County, New York in order to supervise the construction of the canal's middle section. He continued as a commissioner as an 1831, after which he served as mayor of Utica in 1833 and as a member of a three-man commission tasked with arbitrating the boundary between New York and New Jersey.[3]

Business career and death

Though mentioned as a possible candidate for governor, by the late 1820s Seymour focused his attention increasingly on his growing real estate and business interests. In 1835 he became the president of the Farmers' Loan and Trust Company and moved to New York City. Though his interests flourished during the boom years of the early 1830s, the New York fire of 1835 followed by the financial panic of 1837 brought an end to prosperous times and left Seymour in a state of acute depression. Returning to Utica in August 1837, he shot himself on August 26.[4]


Seymour had a number of successful family members in addition to his brother and children. State Engineer Horatio Seymour, Jr. was his grandson, Congressman Origen S. Seymour was his nephew, and Congressman Edward Woodruff Seymour was his greatnephew.


  1. ^ Stewart Mitchell, Horatio Seymour of New York (Cambridge, MA: Harvard University Press, 1938), pgs. 5-7.
  2. ^ Jabez Hammond, The History of Political Parties in the State of New-York (Albany NY: C. Van Benthuysen, 1842), vol. I, pgs. 401, 417, 495-497.
  3. ^ Mitchell, op cit, pgs. 12-20.
  4. ^ Hammond, The History of Political Parties in the State of New-York (Albany NY: C. Van Benthuysen, 1842), vol. II, pgs. 97-98; Mitchell, op cit, pgs. 17-23.

External links

  • Bio of his father, himself and other family members
  • The New York Civil List compiled by Franklin Benjamin Hough (pages 42, 122ff, 145, 196 and 303; Weed, Parsons and Co., 1858)
  • [1] Political Graveyard (giving wrong beginning years for tenures)
  • [2] David Kipp Conover's genealogy page - "Mary Ledyard Forman"


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