The President of the United States of America takes pleasure in presenting the Silver Star to Chief Petty Officer Donald L. Stillson, United States Navy, for gallantry in action while serving aboard a United States Submarine during war patrols in enemy-controlled waters during World War II. As Quartermaster of the watch in a submarine, Chief Stillson sighted a large enemy tanker. Furnishing accurate bearings to the approach party during the attack he contributed materially to the destruction of the ship. In a subsequent night surface action, despite heavy Japanese gunfire, he silenced the 37-mm. twin mount in a hostile craft, and, throughout the remaining patrol, rendered valuable assistance in sinking or damaging six enemy vessels totaling 35,551 tons. His gallant actions and dedicated devotion to duty, without regard for his own life, were in keeping with the highest traditions of military service and reflect great credit upon himself and the United States Naval Service.