John Alexander McClernand
Union United States Army general
Died when: 88 years 113 days (1059 months)Star Sign: Gemini
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John Alexander McClernand (May 30, 1812 – September 20, 1900) was an American lawyer and politician, and a Union general in the American Civil War.
He was a prominent Democratic politician in Illinois and a member of the United States House of Representatives before the war.
McClernand was firmly dedicated to the principles of Jacksonian democracy and supported the Compromise of 1850.McClernand was commissioned a brigadier general of volunteers in 1861.
His was a classic case of the politician-in-uniform coming into conflict with career Army officers, graduates of the United States Military Academy.
He served as a subordinate commander under Ulysses S.Grant in the Western Theater, fighting in the battles of Belmont, Fort Donelson, and Shiloh in 1861–62.
A close friend and political ally of Abraham Lincoln, McClernand was given permission to recruit a force to conduct an operation against Vicksburg, Mississippi, which would rival the effort of Grant, his department commander.
Grant was able to neutralize McClernand's independent effort after it conducted an expedition to win the Battle of Arkansas Post, and McClernand became the senior corps commander in Grant's army for the Vicksburg Campaign in 1863.
During the Siege of Vicksburg, Grant relieved McClernand of his command by citing his intemperate and unauthorized communication with the press, finally putting an end to a rivalry that had caused Grant discomfort since the beginning of the war.
McClernand left the Army in 1864 and served as a judge and a politician in the postbellum era.
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