 It was named by the United States Advisory Committee on Antarctic Names (US-ACAN) for Lieutenant Jack A. Odbert, assistant aerological officer with Operation Windmill which established astronomical control stations in the area in January 1948.Haunn Bluff is a steep rock bluff which surmounts the eastern part of the south shore of the island.It was named by the US-ACAN for Marvin G. Haunn, meteorologist and member of the Wilkes Station party of 1962.