"PT-109" is a 1962 song by Jimmy Dean about the combat service of John F. Kennedy and the crew of the PT-109 in World War II.
After several days on a tiny uninhabited island, Kennedy and the crew were rescued by two native Solomon Islanders—Biuku Gasa and Eroni Kumana, part of an allied Coastwatchers team led by Australian Reg Evans—although the islanders are not mentioned in the song.
"PT-109" was his biggest hit in 1962, reaching the top ten with Kennedy still in the White House — it preceded the 1963 film of the same title.
The song was Dean's sixth release on the country chart; it peaked at number three and stayed on the country chart for thirteen weeks.
Others include "Ballad of the Green Berets," "Sink the Bismark," "Billy and Sue," "Gonna Raise a Ruckus Tonight," "Sky Pilot," "Navy Blue," and "Soldier Boy."