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 Private Robert Mack Wilson (ASN: 1311934), United States Army, for extraordinary heroism in action while serving with Company I, 118th Infantry Regiment, 30th Division, American Expeditionary Forces, near Brancourt, France, 8 October 1918. Private Wilson, who was a Lewis gunner, encountered an enemy machine-gun nest containing four Germans who were inflicting heavy casualties on the right platoon of the company. He opened fire with his Lewis gun and then charged the nest, firing as he advanced and killing all the occupants of the post. On 17 October 1918, Private Wilson was killed while on duty with his company.