The President of the United States of America takes pleasure in presenting a Gold Star in lieu of a Second Award of the Navy Cross to Lieutenant Commander Francis David Walker, Jr. (NSN: 0-75075), United States Navy, for extraordinary heroism in the line of his profession as Commanding Officer of the U.S.S. CREVALLE (SS-291), on the FOURTH War Patrol of that submarine during the period 21 June 1944 to 9 August 1944, in enemy controlled waters of the South China Sea and the waters west of Luzon. In conjunction with other United States submarines, his vessel participated in a concerted attack which virtually destroyed a large heavily escorted convoy of enemy ships. Under his determined and skillful command his vessel accomplished the sinking of three large freighters from this convoy, and a fourth freighter from another convoy, for a total of 28,000 tons. With great courage he delivered all attacks in the face of strong enemy anti-submarine measures, and successfully evaded persistent counterattacks, to bring his ship safely back to port. Through his experience and sound judgment Lieutenant Commander Walker brought his ship safely back to port. His conduct throughout was an inspiration to his officers and men and in keeping with the highest traditions of the United States Naval Service.