Sep. 29, 1807 Hartford Hartford County Connecticut, USA
Sep. 3, 1868 Hartford Hartford County Connecticut, USA
US Congressman, Connecticut Governor, Mexican War United States Army Officer. A lawyer and probate judge, he was elected as a Democrat to represent Connecticut's 1st Congressional District in the United States House of Representatives, serving from 1843 to 1845. In March 1846 he helped recruit a regiment of infantry from Connecticut to serve during the Mexican War, and was commissioned Major. The unit eventually became the 9th United States Infantry, and fought in the September 1847 Battle of Chapultepec. Praised for his leadership during the battle, Thomas Seymour was promoted to Lieutenant Colonel of the 12th United States Infantry before he was discharged. After the war he was elected as Governor of Connecticut, serving from 1850 to 1853, and was appointed United States Minister to Russia, serving from 1853 to 1858. In 1864 he ran to be the Democratic nominee for United States President, eventually losing that nomination to George B. McClellan.