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It was named by the Advisory Committee on Antarctic Names (US-ACAN) after Osborne M. Tribby, the Pharmacist's Mate in the Eastern Group of U.S. Navy Operation Highjump and an aircrewman on the PBM Mariner flight to Noville Peninsula on January 11–12, 1947, in which survivors of the December 30 PBM crash were rescued and returned to the seaplane tender Pine Island.