John Treadwell

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title: "John Treadwell" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["1745-births", "1823-deaths", "governors-of-connecticut", "people-from-farmington,-connecticut", "fellows-of-the-american-academy-of-arts-and-sciences", "yale-university-alumni", "members-of-the-connecticut-general-assembly-council-of-assistants-(1662–1818)", "members-of-the-connecticut-house-of-representatives", "connecticut-federalists", "lieutenant-governors-of-connecticut", "federalist-party-state-governors-of-the-united-states", "american-congregationalists", "people-from-colonial-connecticut", "justices-of-the-connecticut-supreme-court", "candidates-in-the-1788–1789-united-states-elections", "candidates-in-the-1794-united-states-elections", "candidates-in-the-1796-united-states-elections", "candidates-in-the-1800-united-states-elections"] description: "American politician" topic_path: "politics" source: "https://en.wikipedia.org/wiki/John_Treadwell" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary American politician ::

::data[format=table title="Infobox officeholder"]

Field	Value
order	21st
office	Governor of Connecticut
name	John Treadwell
image	John Treadwell (Connecticut Governor).jpg
term_start	August 7, 1809
term_end	May 9, 1811
lieutenant	Roger Griswold
preceded	Jonathan Trumbull, Jr.
succeeded	Roger Griswold
order3	25th
office3	Lieutenant Governor of Connecticut
term_start3	December 1, 1797
term_end3	August 7, 1809
governor3	Jonathan Trumbull, Jr.
preceded3	Jonathan Trumbull, Jr.
succeeded3	Roger Griswold
birth_date
birth_place	Farmington, Connecticut
death_date
death_place	Farmington, Connecticut
nationality	American
party	Federalist
spouse	Dorothy Pomeroy Treadwell
alma_mater	Yale University
occupation
::

| honorific-prefix = | order = 21st | office = Governor of Connecticut | name = John Treadwell | honorific-suffix = | image = John Treadwell (Connecticut Governor).jpg | term_start = August 7, 1809 | term_end = May 9, 1811 | lieutenant = Roger Griswold | preceded = Jonathan Trumbull, Jr. | succeeded = Roger Griswold | order3 = 25th | office3 = Lieutenant Governor of Connecticut | term_start3 = December 1, 1797 | term_end3 = August 7, 1809 | governor3 = Jonathan Trumbull, Jr. | preceded3 = Jonathan Trumbull, Jr. | succeeded3 = Roger Griswold | state house = | state_house2 = | district2 = | term_start2 = | term_end2 = | preceded2 = | succeeded2 = | state = | birth_date = | birth_place = Farmington, Connecticut | death_date = | death_place = Farmington, Connecticut | nationality = American | party = Federalist | spouse = Dorothy Pomeroy Treadwell | children = | alma_mater = Yale University | occupation =

John Treadwell (November 23, 1745 – August 18, 1823) was an American politician and the 21st Governor of Connecticut.

Biography

Treadwell was born in Farmington, Connecticut the only son of Ephraim and Mary (Porter) Treadwell, on November 23, 1745. He graduated from Yale University in 1767. He then studied law with Judge Titus Hosmer in Middletown, was admitted to the bar and practiced law in Farmington. On November 20, 1770, John Treadwell married Dorothy Pomroy, of Northampton, Massachusetts. They had four daughters, Dolle 1st, who died at just three years of age; Dolle 2nd; Eunice; and Mary, and two sons, George and John.

Career

Treadwell served as a member of the General Assembly from 1776 to 1783. He was then elevated to the governor's council. He held that position until 1783. He was elected to the Confederation Congress in 1784, 1785, and 1787, but did not attend. He was a member of Connecticut council of assistants from 1786 to 1798. From 1786 to 1797 he served as Judge of the Court of Common Pleas. In 1788 he was a Delegate to the state convention that ratified the US Constitution. In 1789 Treadwell became Judge of the Probate Court and the Supreme Court of Errors, serving until 1809. He was elected a Fellow of the American Academy of Arts and Sciences in 1805. Treadwell unsuccessfully ran for Connecticut's at-large congressional district at least 5 times between 1788 and 1800, with his best performance coming in the September 1797 special election where he was a distant runner-up to William Edmond.

In 1798, Treadwell was elected the Lieutenant Governor of Connecticut, an office he also held until 1809. Jonathan Trumbull, the Governor of Connecticut, died in office on August 7, 1809. Treadwell, lieutenant governor at the time, assumed the governor's office. He was elected by popular vote on April 9, 1810, to the governorship. During his term, the Hartford Fire Insurance Company was proposed, and the Non-Intercourse Act was reinstated in February 1811, which resulted from Connecticut's opposition to the United States's impending war with Great Britain.

Treadwell left office on May 9, 1811 after an unsuccessful re-election bid. In 1814-15 he was a Connecticut delegate to the Hartford Convention. He was a member of the 1818 Constitutional Convention and also served on the American Board of Commissioners for Foreign Missions.

Death

Treadwell, a Congregationalist, died in Farmington, Hartford County, Connecticut, on August 18, 1823 (age 77 years, 268 days). He is interred at Farmington Old Cemetery. He was a founder of the Connecticut Missionary Society, the missionary arm of the Connecticut General Association of Congregational ministers.

References

References

1. "John Treadwell". Connecticut State Library.
2. "John Treadwell". Biographical Directory of the United States Congress.
3. "Book of Members, 1780–2010: Chapter T". American Academy of Arts and Sciences.
4. "Our Campaigns - Candidate - John Treadwell".
5. (2020-03-01). "A New Nation Votes".
6. "John Treadwell". National Governors Association.
7. "John Treadwell". The Political Graveyard.

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