Alvin York, WWI hero and Medal of Honor winner.
After their officers were killed, he assumed command and he, with 7 men, charged a German machine gun nest. They captured 4 officers, 128 men, and several guns. By the way, he tried to get out of service because he was a pacifist - not a coward but a genuine pacifist.
http://www.grunts.net/legends/alvinyork.html