Under the command of Lieutenant John G. Johns, the submarine won 11 battle stars for World War II service. It was laid down in 1938 by the Electric Boat Company. Because it was built while asbestos was widely used in shipbuilding, it is very likely that the USS Seadragon had asbestos insulation on its walls. This is why people who were present on the vessel should keep a close eye on their health and undergo regular medical examinations in order to make sure the asbestos fibers they inhaled and ingested have not damaged their organs. The US Seadragon was struck from the Naval Vessel Register in 1948 and subsequently sold for scrap.