Oliver Otis Howard - Wikipedia

Oliver Otis Howard (November 8, 1830 - October 26, 1909) was a career United States Army officer and a Union general in the American Civil War. As a brigade commander in the Army of the Potomac, Howard lost his right arm while leading his men against Confederate forces at the Battle of Fair Oaks/Seven Pines in June 1862, an action which later earned him the Medal of Honor.

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