Question: Who established the advisory board that developed the first ironclad warship? 

Related documents: [0]  [DOC] The Ironclad Board was an advisory board established by the Union in 1861 in response to the construction of the "CSS Virginia" by the Confederacy during the US Civil War. The primary goal of the Ironclad Board was to develop more battle-worthy ("ironclad") ships, leading to the construction a number of innovative designs, including the USS Monitor. The Board consisted of senior naval officers Commodore Hiram Paulding, Commodore Joseph Smith, Commander Charles Henry Davis and assistant Secretary of the Navy Gustavus Vasa Fox. [END] 
[1]  [DOC] 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. [END]  
Answer: the Union
the Union