Four Cylinder Club of America; Long Island Sports Car Assoc.; Pebble Beach Sports Car Club; American Drivers Club, Great Britain; Mercedes-Benz Club of America; Associated Sports Car Clubs of Hawaii; F.I.A. Automobile Competition Committee, United States; A.A.A. United States of America; A.A.A. Maritime Automobile Assoc.; California Imported Car Club; Grand Valley Car Club; Oakville-Trafalgar Light Car Club; W.P.M.C; and another with moto 'Spes Mea In Deo Est' (14)