Halleck, Henry W

Halleck, Henry W. (b. Westernville, N.Y., 16 January 1815; d. Louisville, Ky., 9 January 1872) He graduated third in his West Point class and was known as “Old Brains” for his books on military science. He served in California during the Mexican War and resigned his commission in 1854. He reentered the army as major general in 1861, and was recommended by Winfield Scott to command the Army of the Potomac, but was instead given command of all western forces. Named “general in chief” of all Federal armies on 11 July 1862, he served primarily as Abraham Lincoln’s chief military advisor and exercised no significant control over the field armies. When Ulysses S. Grant assumed his position on 9 March 1864, Halleck functioned as a chief of staff by coordinating communications with the army’s seventeen different commands and acting as liaison between Grant and Lincoln. Although reportedly the most unpopular man in Washington, Halleck played a major—and unappreciated—role in eventual Union victory.