The President of the United States of America takes pleasure in presenting the Silver Star to Commander [then Lieutenant Commander] Irvin Swander Hartman, United States Navy, for conspicuous gallantry and intrepidity as Commanding Officer of the U.S.S. S-41 (SS-146), on the SIXTH War Patrol of that submarine in enemy Japanese-controlled waters, from 15 May to 15 June 1943. Although his submarine had only four torpedo tubes forward, Commander Hartman maneuvered into a favorable firing position and launched a series of torpedo attacks to sink two enemy freighters totaling 6,000 tons. Employing effective evasive tactics during severe enemy counterattacks, he succeeded in returning his ship safe to port. Commander Hartman’s skill and devotion to duty were in keeping with the highest traditions of the United States Naval Service.