The War Beneath the Waves: Mary Sears and the Navy's Oceanographic UnitPublished byvisit.archives.govHistorical Content•1 min readAfter World War II, Mary Sears was promoted to lieutenant commander and served as officer in charge of the Navy’s new Division of Oceanography. She retired as a commander in the Navy Reserve in 1963.Featured DocumentEast Rotunda GalleryBack to topExplore ExhibitsLearn moreShareLegalReport