Document 6RrRGRZjbzY4n4GGMYa1GXkq4

Date Joined Company Date Joined Company * I9J7 1954 1936 1958 1982 Lava Crueible-Refreetorles Company Lavereck h Haines, Inc, Load Industrie* Association London Transport Board , Louisiana Ordnance Plant Remington Rand Division Sperry Rand Corporation >937 Macklln Company 1950 ' Manhattan Rubber Division Riybiitei-MututtUi Inc. 1966 Manufacturing Chemists' Aaaociatton 1966 ** Marcona Mining Company 1940 Maryland Sell Insurer*1 and Employer*1 Cempenaation Assn. 1937 J. S. McCormick Company 1964 Merck ! Company, Inc. 1937 Mtd-Weat Abrasive Company 1965 Miles Laboratories, Inc. 1936 Mine Safety Appliance* Company 1957 Minnesota Mining ! Manufacturing Co, 1956 Jesse S, MoriebSon, Inc. 1952 1945 1937 1956 1939 1937 1950 1956 1937 1946 1937 1937 1956 1949 1941 1964 1962 1937 1963 1965 1953 Red H1U Grinding Wheel Corporation Republic Steel Corporation H. H. Rebertaoo Company Robertson Manufacturing Company Safety First Supply Company St. Joseph Lead Company Sandia Corporation Sauereisen Cements Company Cleude B. Schneihle Company Scott Aviation Corporation Slmondt Abrasive Company Stmond* Worden White Compaay Soap and Detergent Aaaociatton Socony Mobil Oil Company, Inc. Standard Lime end Cement Company Standard Oil Compaay (New JerseyJ Stauffer Chemical Company Starling Grinding Wheel Company Stiffler Industrial Lubricant* Compaay Sturm, Ruger It Company, lae, Soger Best Product* Company 1966 National Coal Association 1952 Tata Sarvices Limited 1937 National Crushed Stone Assn., Zac. 1946 Taylor, Smith It Taylor Company j 1947 National Class Sand Corporation 1946 Tennessee Copper Company 1937 National Grinding Wheel Company, Inc. Division of Tennessee Corporation 1937 National Industrial Sand Assn. 1938 Tons Gulf Sulphur Company 1937 National Load Company 1937 Titan Abraslvne Company 1964 National Ready Miked Concrete Assn, 1960 Tom* River Chemical Corporation 1945 National Band and Gravel Aeon., Inc. rI 1938 National Slag Aeaaeiation 1947 National Sieei Corporation 1936 Union Carbide Corporation 1936 United State* Potter* Association ij 1962 1964 Nederland duPoat deNemourt N.V, Newport Division 1936 United State! Steel Corporation Toaneco Chemicals, Inc. 1937 Valley Mould and Iron Corporation `V 1963 Osborn Manufacturing Company 1960 1938 Van Straaten Chemical Company Vesuvius Crucible Company 1937 1953 1936 Ottawa Silica Compaay Owena-Cornlng Flborglaa Corp. Owene^Ullnofs Claes Company 1937 1937 1937 Waltham Grinding Wheel Company Washington Mill* Abrasive Company Wedron Stiica Company 1954 1954 Pacific Orinding Wheel Manufacturing O, H. Packwood Manufacturing Ce. 1962 Western Electric Company, Inc. 1937 Westfield Grinding Wheel Company 1937 Peninsular Grinding Wheel Division 1961 Wostinghouea Brake and Signal Co., Ltd. Wakefield Corporation 1937 Westtnghouse Electric Corporation 1937 Pennsylvania Glass Sand Corporation 1937 Willson Products Division 1956 Ponnaylvanla Manufacturer*1 Assn. Ray-O-Vae Company Casualty Insurance Company 1964 Perkin-Elmer Corporation 1937 Youngstown Sheet and Tube Company 1960 Petroleo Srseileiro S. A, 1936 Phelps Dodge Corporation 1951 Philadelphia Quarts Company ' 1964 Pittsburgh Activated Carbon Company 1937 Pittsburgh Plate Glass Company 1955 Pittsburgh Steel Company 1936 Portland Cement Association 1961 Powdered Products Company 1937 Process Air Division American Air Filter Company 1950 PullmanStandard 1957 Reaction Motor* Division