(1824–91) Union army officer, born in Vermont. Seymour fought in the Mexican War (1846–48). At the outbreak of the Civil War, he had a leading role in the defense of Fort Sumter (1861), earning a brevet to major. In 1862 he was promoted to brigadier general of volunteers and given command of the Pennsylvania Reserve Division; he participated in fierce fighting during the Peninsular campaign that year. He was also present at the Second Battle of Bull Run (1862) and at Antietam (1862). In 1864 he suffered a major defeat in an expedition to return Florida to the Union. His troops also performed poorly in the Battle of the Wilderness (1864); Seymour himself was captured but later exchanged. He was more successful at Petersburg, where he earned brevets to major general in the volunteer and the regular armies.
From The Oxford Essential Dictionary of the U.S. Military in Oxford Reference.
Subjects: Warfare and Defence.