The web address of the Uss John F Kennedy Museum is:
ussjfk.org
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The address of the Uss John F Kennedy Museum is: Po Box 683,
Portland, ME 04104-4104
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I am unaware of what "letter" represents the site of the USS
Cole Bombing, but the attack occurred in Aden, Yemen.
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There's 3 US battleships at Pearl harbor; two sunk and one
afloat: USS Arizona & USS Utah, and the USS Missouri.
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The USS Constitution is a 3-masted Heavy Frigate. In sailing,
the masts (bow to stern) on a square-rigged sailing vessel are the
Foremast, Mainmast, and the Mizzenmast.