U.S.C.G.C. Arrowwood
U.S.C.G.C. Chaparral
U.S.E.C. J.V. Cavanaugh
U.S.S. Chatot
U.S.S. Chiwawa
U.S.S. Sable
U.S.S. Samoset
UFASCO
Uhlmann Brothers
United States Gypsum