The was built as the private yachtCorsair II in 1899, and was acquired and commissioned by the Navy on 15 May 1917. Cross referencing DANFS also finds the names, USC&GS Oceanographer (OSS-26), USS Natchez (PG-85) and USS Oceanographer (AGS-3). as being held by this same ship.
A fictitious submarine named USS Corsair was the setting for the 1943 movie "Crash Dive." No USS Corsair was in commission during the time period of the movie (the Second Battle of the Atlantic).