Checkoway used the large stock of oil onboard the vessel to start Checkoway Oil Company, and two of her four Fairbanks-Morse diesel engines are in service at the University of Notre Dame as backup generators. Haddock received 11 battle stars for her service in World War II. All of her war patrols except the twelfth were designated successful and she received the Presidential Unit Citation for her outstanding performance on the second, fifth, sixth, and seventh war patrols. References External links hazegray.org: USS Haddock navsource.org: USS Haddock Gato-class submarines World War II submarines of the United States Ships built in Kittery, Maine 1941 ships