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 (Medical Corps) Percy Lancelot Jones, 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. Colonel Jones served with marked distinction as Commander of the United States Ambulance Service with the French Armies. By the force of his energy, zeal, and ability he brought the units of that service to a high state of perfections. The splendid record held by this service is attributable to his great devotion and untiring efforts in accomplishing his tasks.