The President of the United States of America, authorized by Act of Congress, July 9, 1918, takes pleasure in presenting the Army Distinguished Service Medal to Colonel (Field Artillery) Robert H. Tyndall, United States Army, for exceptionally meritorious and distinguished services to the Government of the United States, in a duty of great responsibility during World War I, as Commander, 150th Field Artillery, 42d Division, in the Baccarat, champagne, Aisne-Marne, St. Mihiel, and Meuse-Argonne operations, part of which time he Commanded one or more additional elements of the Artillery with which he was operating. Colonel Tyndall’s high technical attainments, his untiring energy and devotion to duty were important factors in the successful operations of the American Expeditionary Forces.