History of the USS Oceanographer (AGS 3)
At one time the $3,000,000 luxury yacht of J.P. Morgan, Sr., the USS OCEANOGRAPHER (AGS 3) began service as a commissioned vessel ( for the second time ) on 15 August 1942 at the Norfolk Shipbuilding and Drydock Company's yards, Norfolk, Va.

The Weather Bureau Record of War Administration Part 10
Part 10 of the official World War II History of the Department of Commerce ....

"I think we are looking at the Japanese sub!"
Al Kalvaitis of NOAA Research's National Undersea Research Program (NURP) provides an eyewitness account of that day which led to the discovery of that long lost Japanese midget submarine that was used in an attempted underwater attack of Pearl Harbor, one hour before the air assault.