(SSB(N)-611) was laid down 4 April 1960 by Newport News
Shipbuilding & Dry Dock Co., Newport News, Va.; launched
15 July 1961; sponsored by Mrs. Robert F. Kennedy, wife of
the Attorney General of the United States; and commissioned
21 May 1962, Comdr. Robert W. Stecher ( blue crew ) and
Comdr. Robert D. Donavan ( gold crew ) in command.
sailed 31 May 1962 for shakedown cruise off the East Coast.
Following post-shakedown alterations in her builder's yard,
she proceeded to her homeport, Charlestown, S.C., arriving
15 December 1962. The ninth operational Fleet Ballistic
Missile Submarine, she departed Charleston 31 December 1962
for her first Polaris patrol in the Atlantic which
terminated upon her arrival at her base at Holy Loch,
Scotland, 8 March 1963. Based there, she completed her ninth
patrol 15 January 1965 and immediately began preparations to
sail again to defend her nation and the free world.
In the following
years John Marshall made 17 successful Polaris
patrols before beginning her first major overhaul at Newport
News Shipbuilding and Drydock Co., 13 December 1966 to
prepare for resuming her vigils late the following year.
was reequipped with A3 Polaris missiles after 1966. She was
converted 1 May 1981 to carry frogmen or commandos and
reclassified SSN 611.