The Titanic is not the only famous ship that Ballard has found. In May 2002, he discovered the remains of a boat called PT-109. PT-109 was a small naval boat, similar to the one in the picture. Its captain was a young John F. Kennedy. Its job was to stop the Japanese navy from carrying supplies to soldiers on the Solomon Islands. On 2 August 1943 PT-1009 was struck by a Japannese warship and sank. Two men died, but Kennedy and the rest of the crew managed to swim to a nearby island. The remains of PT-109 have been lying on the Bottom of the sea since that day. Ballard used submersibles and naval maps to locate the boat.