There are four Medals awarded for actions on this day. One each from the Civil War, World War II, Korea, and Vietnam. One Medal was posthumous.Civil War - the clash of ironclads... Monitor vs Merrimack. WILLIAMS, PETER Rank and organization: Seaman, U.S. Navy. Born: 1831, Norway, Accredited to: Pennsylvania. G.O. No.: 11, 3 April 1863. Citation: Serving on board the U.S.S. Ironclad Steamer Monitor, Hampton Roads, 9 March 1862. During the engagement between the U.S.S. Monitor and the C.S.S. Merrimack...