Great find Fred.
I'm sure you already know of the expeditions to the carriers lost at the battle of Midway in addition to locating the Japanese submarine I 52 that was ironically located in the Atlantic Ocean in 1700 feet of water and the Israeli Submarine, the Dakar lost in the Mediterranean Sea .
http://www.combinedfleet.com/MidwayFind.htm
There was also the endeavors of deep sea explorer Robert Ballard who is also known for discovering the wrecks of Titanic and the Bismarck among others .
http://www.pbs.org/newshour/bb/scien...8-ballard_6-4/