"Squalus" was initially located by her sister ship, . The two submarines were able to communicate using a telephone marker buoy until the cable parted. Divers from the submarine rescue ship began rescue operations under the direction of the salvage and rescue expert Lieutenant Commander Charles B. "Swede" Momsen, using the new McCann Rescue Chamber. The Senior Medical Officer for the operations was Dr. Charles Wesley Shilling. Overseen by researcher Albert R. Behnke, the divers used recently developed heliox diving schedules and successfully avoided the cognitive impairment symptoms associated with such deep dives, thereby confirming Behnke's theory of nitrogen narcosis. The divers were able to rescue all 33 survivors on board (32 crew members and a civilian) the sunken submarine. Four enlisted divers, Chief Machinist's Mate William Badders, Chief Boatswain's Mate Orson L. Crandall, Chief Metalsmith James H. McDonald and Chief Torpedoman John Mihalowski, were awarded the Medal of Honor for their work during the rescue and subsequent salvage. The successful rescue of the "Squalus" survivors is in marked contrast to the loss of in Liverpool Bay just a week later.)