The President of the United States of America takes pleasure in presenting the Navy and Marine Corps Medal to Chief Gunner’s Mate John A. Sigmon, United States Navy, for heroic conduct while serving aboard a United States Submarine during war patrols in enemy controlled waters during World War II. During six war patrols, Chief Gunner’s Mate Sigmon supervised the submarine’s main battery. His conduct as gun captain contributed largely to the sinking of a sizeable freighter, and his courage and leadership were an example to the ship’s company.