The President of the United States of America, authorized by Act of Congress, July 9, 1918, takes pride in presenting the Distinguished Service Cross (Posthumously) to Captain (Infantry) Harry Joseph Selby, United States Army, for extraordinary heroism in action while serving with 18th Infantry Regiment, 1st Division, American Expeditionary Forces, near Exermont, France, 4 October 1918. Captain Selby led his battalion in the attack through heavy artillery and machine-gun fire until killed by a machine-gun bullet. On one occasion he opened fire upon an enemy machine-gun nest with his pistol, thus drawing its fire while others made a successful flank attack.