The submarine, named after one of the heaviest bony fish in the world, was laid down in 1941 by Mare Island Naval Shipyard. During World War II, it earned 9 battle stars and completed 11 war patrols with Commander R. W. Peterson in command. Asbestos, a naturally occurring carcinogenic mineral, was present on the submarine, mostly in the form of insulation, which put the health of those who served on it at great risk. For this reason, we highly recommend undergoing yearly medical examination as a preventive measure, to make sure the asbestos they inhaled has not affected their lungs. The USS Sunfish was decommissioned in 1945, at the end of the war, and sold for scrapping several years later.