With 6 battle stars and a Navy Unit Commendation, the USS Haddo (SS-255) was laid down in 1941, as most of the Gato-class ships. Her keel was laid down by the Electric Boat Company, Groton, Connecticut. She was launched on 21 June 1942; and commissioned on 9 October 1942, Lieutenant Commander Wallace L. Lent in command. It successfully completed 4 war patrols. In 1958, the USS Haddo was struck from the Naval Vessel Register and subsequently sold for scrapping.
Asbestos was used for many years by the Navy, which greatly endangered many veterans. Due to the year during which it was laid down, asbestos is very likely to have lurked on the USS Haddo (SS-255), mostly in the form of insulation. This is why the people who served on it should keep a close eye on their health, as a disease such as lung cancer may ensue even 50 years after the first exposure.