The Final Quest
On January 28, 1944, the Grayback left Pearl Harbor after a brief layover of slightly more than three weeks at the city of Pearl, bringing her tenth and last active war tour to a close. Furthermore, as we previously knew, her last radio communication with the base was on February 25, which was a Friday. As a result of the lack of further contact from the submarine, the Navy declared her officially missing on March 30, 2011.
The Final Quest
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