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) Charles H. Mason, 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. While serving as Chief of MI-2, Information Section, Military Intelligence Division, General Staff, Colonel Mason originated and put into practical application an exceedingly scientific and highly technical system of handling all positive intelligence received in the Division, including its dissemination to all branches of the War Department and other coordinating branches of the Government. From 16 September to 12 December, 1918, as Assistant Chief of Staff, G-2, 36th Division, he displayed sound judgment and exceptional ability in the administration and operation of that section of the Division Staff. Later, when on duty with the American Peace Mission at Paris, France, he rendered services of great value to the Government.