USS Loggerhead (SS-374) USS Loggerhead (SS-374) USS "Loggerhead" (SS-374/AGSS-374), a "Balao"-class submarine, was a ship of the United States Navy named for the loggerhead, "Caretta caretta", a very large, carnivorous sea turtle common in the warmer parts of the Atlantic, Pacific, and Indian Oceans. "Loggerhead" (SS-374) was laid down on 1 April 1944 by Manitowoc Shipbuilding Co., Manitowoc, Wisc.; launched 13 August 1944; sponsored by Mrs. Barbara Fox; and commissioned on 9 February 1945, Commander Ralph M. Metcalf in command. "Loggerhead" emerged from the Manitowoc River into Lake Michigan on 1 March 1945 and headed via Chicago to Lockport, Ill., where she entered
Loggerhead Key done to provide the monkeys a place to breed, to supply the animals for medical research laboratory experiments. Around 1,322 of the monkeys existed on the island between 1987–1990. The Dry Tortugas Light is a lighthouse located on Loggerhead Key. It began operations in 1858 and was decommissioned in 2014. The Carnegie Marine Biological Laboratory, also referred to as the Tortugas Laboratory, was a marine biology laboratory and research facility constructed on the northern end of Loggerhead Key that operated from 1904 to 1939. It was constructed and operated by the Carnegie Institution of Washington. The Carnegie Marine Biological Laboratory