SSBN 611 History
USS DANIEL BOONE (SSBN 629), and
USS JOHN C. CALHOUN (SSBN 630) are launched,
marking the first, and only, time that four nuclear
submarines were christened on the same day
Tecumseh, Flasher, John Calhoun, and Daniel Boone launched, marking the first time that four nuclear submarines were christened on the same day.
From "Nuclear Powered Submarines", November 1964, United States Atomic Energy Commision/Division of Technical Information





