The President of the United States of America takes pleasure in presenting the Silver Star to Lieutenant, Junior Grade James Mercer, United States Navy, for gallantry in action as Assistant Approach Officer, Assistant Engineer Officer, and later as Communications Officer aboard a United States Submarine during seven successful war patrols against the enemy during World War II. He contributed to the sinking of one hostile freighter of 9,310 tons and the severe damaging of another. 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.