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 (Infantry) Thomas Horace Slavens, 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 of the New York Depot from July 1917 to March 1918, in which Colonel Slavens demonstrated superb energy and marked executive ability in a position of great responsibility. Later, as Commanding Officer of the 51st Infantry, 6th Division, from October 1918, he showed marked ability in the training of the regiment and during its operations in the Meuse-Argonne.