John Taylor Wood served on a Civil War ship which engaged in battle with what iron-hulled steamship in one of the most famous naval battles in Civil War and U.S. Naval history?
USS Monitor USS "Monitor" was an iron-hulled steamship. Built during the American Civil War, she was the first ironclad warship commissioned by the Union Navy. "Monitor" is most famous for her central role in the Battle of Hampton Roads on 9 March 1862, where, under the command of Lieutenant John Worden, she fought the casemate ironclad  (built on the hull of the former steam frigate USS "Merrimack" ) to a standstill. The unique design of the ship, distinguished by its revolving turret which was designed by American inventor Theodore Timby, was quickly duplicated and established the monitor type of warship.
SS Ohio (1872) SS "Ohio" was an iron passenger-cargo steamship built by William Cramp & Sons in 1872. The second of a series of four "Pennsylvania"-class vessels, "Ohio" and her three sister ships—"Pennsylvania", "Indiana" and "Illinois" —were the largest iron ships ever built in the United States at the time of their construction, and amongst the first to be fitted with compound steam engines. They were also the first ships to challenge British dominance of the transatlantic trade since the American Civil War.