The Yorktown was found 25 years ago, but only shown from above. The two Japanese vessels haven't been seen by humans since they were sunk during the Battle of Midway in June, 1942.
Here's the take on it from Ryan Szymanski, curator of the Battleship New Jersey Mueum and Memorial:
Here's the take on it from Ryan Szymanski, curator of the Battleship New Jersey Mueum and Memorial: