Alexander Macomb was the Commanding General of the United States Army from May 29, 1828 until his death on June 25, 1841. Macomb was the field commander at the Battle of Plattsburgh during the War of 1812 and, after the stunning victory, was lauded with praise and styled The Hero of Plattsburgh by some of the American press. He was promoted to Major General for his conduct, receiving both the Thanks of Congress and a Congressional Gold Medal.
Alexander Macomb In 1818 Territorial Governor Lewis Cass proclaimed the third Michigan county to be called Macomb. At that time the young General was Commander of the Fifth Military Department in Detroit. Born in that city in 1782, son of prominent local entrepreneurs, Macomb had entered the U.S. Army in 1799. He had gained national renown and honor during the War of 1812 for his victory at Plattsburgh in September 1814 over a far superior force of British invaders. Later as Chief Army Engineer he promoted the building of military roads in the Great Lakes area. From May 1828 to his death in June 1841, Macomb served as Commander in Chief of the Army. He is buried in the Congressional Cemetery in Washington D.C. His birthday, April 3, is honored as Macomb County Heritage Day.
Source: Wikipedia