 Attached aboard "Dutton" was a U.S. Navy Oceanographic Detachment, upgraded ca.May 1966 to an Oceanographic Unit, of approximately 3 officers and 22 enlisted personnel, mostly technicians.Varying numbers of civilian scientists and engineers managed survey operations and maintained certain navigation and sonar equipment, usually about 12 oceanographers from the Naval Oceanographic Office, some personnel from the Naval Applied Sciences Laboratory (NASL, later NSSNF), and about 7 technical representatives from private corporations.