From: Dictionary of American Fighting Ships
One who guards or protects.
PT-809 (q. v.) was under the Potomac River Naval Command in November 1959 as a Civil Defense boat and as escort to the Presidential Yacht Barbara Ann, later Honey Fitz. The name Guardian was assigned to her at the request of Captain Aurand, Naval Aide to President Eisenhower, but her official designation remains PT-809.
Transcribed by Yves HUBERT (firstname.lastname@example.org)