Document 1gG9ma7bp7ojKmob2qmJvN8RX

Date Joined Company Date Joined Company 1937 1964 1936 1958 1962 Lava Crucible-Refractories Company Laverack It Haines, Inc. Lead Industries Association London Transport Board Louisiana Ordnance Plant Remington Rand Division Sperry Rand Corporation 1937 Macklin Company 1950 - Manhattan Rubber Division Raybestos-Manhattan, Inc. 1966 ** Manufacturing Chemists' Association 1966 ** Marcona Mining Company 1940 Maryland Self-Insurers' and Employers' Compensation Assn. 1937 1964 1937 1965 J. S. McCormick Company Merck & Company, Inc. Mid-West Abrasive Company Miles Laboratories, Inc, 1936 Mine Safety Appliances Company 1957 Minnesota Mining & Manufacturing Co. 1956 Jesse 5. Morie & Son, Inc. 1952 1945 1937 1956 Red Hill Grinding Wheel Corporation Republic Steel Corporation H, H, Robertson Company Robertson Manufacturing Company 1939 1937 1950 1956 1937 1946 1937 1937 1956 1949 1941 1964 1962 1937 1963 1965 1953 Safety First Supply Company St. Joseph Lead Company - Sandia Corporation Sauereisen Cements Company Claude B. Schneible Company Scott Aviation Corporation Simonds Abrasive Company Simonds Worden White Company Soap and Detergent Association Socony Mobil Oil Company, Inc. Standard Lime and Cement Company Standard Oil Company (New Jersey) Stauffer Chemical Company Sterling Grinding Wheel Company Stiffler Industrial Lubricants Company Sturm, Ruger It Company, Inc. Sugar Beet Products Company 1966 ** National Coal Association 1937 National Crushed Stone Assn., Inc, 1947 National Class Sand Corporation 1937 National Grinding Wheel Company, Inc. 1937 National Industrial Sand Assn. 1937 National Lead Company 1964 National Ready Mixed Concrete Assn. 1945 National Sand and Gravel Assn., Inc. 1938 National Slag Association 1947 National Steel Corporation 1962 Nederland duPont deNemours N. V. 1964 Newport Division Tenneco Chemicals, Inc. 1963 1937 1953 1936 Osborn Manufacturing Company Ottawa Silica Company Owens-Corning Fiberglas Corp. Owens-Illinois Glass Company 1954 1954 1937 1937 1956 1964 I960 1936 1951 1964 1937 1955 1938 1961 1937 1950 Pacific Grinding Wheel Manufacturing G. H. PackwQod Manufacturing Co. Peninsular Grinding Wheel Division Wakefield Corporation Pennsylvania Glass Sand Corporation Pennsylvania Manufacturers' Assn. Casualty Insurance Company Perkin-Elmer Corporation - Petroleo Brasileiro S. A, Phelps Dodge Corporation Philadelphia Quarts Company ' Pittsburgh Activated Carbon Company Pittsburgh Plate Glass Company Pittsburgh Steel Company Portland Cement Association Powdered Products Company Process Air Division American Air Filter Company Pullman -Standard 1952 1946 1946 1938 1937 I960 1936 1936 1936 1937 1960 1938 1937 1937 1937 1962 1937 1961 1937 1937 1937 Tata Services Limited Taylor, Smith It Taylor Company Tennessee Copper Company Division of Tennessee Corporation Texas Gulf Sulphur Company Titan Abrasives Company Toms River Chemical Corporation Union Carbide Corporation United States Potters Association United States Steel Corporation Valley Mould and Iron Corporation Van Straaten Chemical Company Vesuvius Crucible Company Waltham Grinding Wheel Company Washington Mills Abrasive Company Wedron Silica Company Western Electric Company, Inc. Westfield Grinding Wheel Company Westinghouse Brake and Signal Co., Ltd. Westinghouse Electric Corporation Willson Products Division Ray-O-Vae Company Youngstown Sheet and Tube Company 'T 1957 Reaction Motors Division Thiokol Chemical Corporation