Named for Captain Cassin Young who was awarded the Medal of Honor for heroism during the attack on Pearl Harbor, the USS Cassin Young (DD – 793) is docked adjacent to Old Ironsides. Built in 1943, she was. The ship served during World War II and the Korean War. The destroyer saw action off Tinian, the island the Enola Gay took off from to drop the first atomic bomb, as well as Okinawa and Iwo Jima. One of only four Fletcher-class destroyers still afloat, she was designated a National Historic Landmark in 1986.