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 Lieutenant Colonel (Infantry) Thomas Clement Lonergan, 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 an Instructor at the Army General Staff College, American Expeditionary Forces, Lieutenant Colonel Lonergan displayed high professional attainments and unfailing energy, performing services of inestimable worth in connection with the instruction and training of officers for General Staff duty. He prepared the “Notebook for the General Staff Officer” and the “Provisional Staff Manual,” and was mainly responsible for the “Handbook of Division and Brigade Commanders,” all of which proved to be most valuable books. As Adjutant of the 159th Infantry Brigade, 80th Division, during the St. Mihiel offensive, and later as a member of the Inter-allied Games Committee he gave further proof of his sterling ability, sound judgment, and keen foresight. In all of these positions he rendered most conspicuous service to the Government.