Benjamin Butler

(Wikipedia) Benjamin Franklin Butler (November 5, 1818 – January 11, 1893) was an American lawyer and politician who represented Massachusetts in the United States House of Representatives and later served as governor of Massachusetts.
... After rioting in Baltimore, Governor John A. Andrew sent Butler with a force of Massachusetts troops to reopen communication between the Union states and Washington, D.C. A major railroad connection from the Northeast passed through Baltimore and immediately after the start of the war it was unclear whether Maryland would stay in the Union. Butler arrived with the 8th Massachusetts Infantry Regiment by steamer at Annapolis on April 20, 1861. He employed his expert negotiation skills with Governor Thomas H. Hicks and, by April 22, his regiment had disembarked and was put to work repairing damaged railroad tracks around Baltimore. At the same time, the 7th New York Infantry arrived and Butler assumed command of the entire force; his military career would be characterized by his eagerness to assume authority in the absence of official instructions. While Butler remained at Annapolis, the New Yorkers were the first Union troops to march into Washington following President Lincoln's initial call for volunteers. On May 13, Butler's remaining force occupied Baltimore without opposition. On May 14, Union artillery and scores of camps crowned Federal Hill and Union troops patrolled the streets, further supported by the heavy artillery in Fort McHenry. Butler's reward for his aggressive but unauthorized premature action was to be relieved of command by a livid General Winfield Scott. However, Lincoln appointed him one of the first major generals of U.S. Volunteers, ranking from May 16, 1861. Continued