The President of the United States of America, authorized by Act of Congress, July 9, 1918, takes pleasure in presenting the Distinguished Service Cross to First Lieutenant Jack Sims Hart (MCSN: 0-1152), United States Marine Corps, for extraordinary heroism while serving with the Sixth Machine-Gun Battalion, Sixth Regiment (Marines), 2d Division, A.E.F., in action near Thiaucourt, France, 15 September 1918. Acting as company commander, Lieutenant Hart advanced with the first wave of infantry to locate favorable positions for his guns. He discovered an enemy machine-gun which he alone attacked, and although severely wounded, succeeded in capturing the gun and taking the crew prisoners.