The National Association of Die Casting Workers (NADCW) was a

labor union A trade union (labor union in American English), often simply referred to as a union, is an organization of workers intent on "maintaining or improving the conditions of their employment", ch. I such as attaining better wages and benefits ( ...

representing workers involved in casting metal in the United States and Canada. The union was founded in 1934, largely on the initiative of Edward T. Cheyfitz, who became its national secretary. In 1937, it affiliated to the

Congress of Industrial Organizations The Congress of Industrial Organizations (CIO) was a federation of unions that organized workers in industrial unions in the United States and Canada from 1935 to 1955. Originally created in 1935 as a committee within the American Federation of ...

, at which time, it had about 4,750 members. In 1942, it became part of the

International Union of Mine, Mill and Smelter Workers The International Union of Mine, Mill and Smelter Workers (IUMMSW) was a labor union representing miners and workers in related occupations in the United States and Canada. The union played an important role in the protection of workers and in d ...

. By 1948, it had 20,000 members, at which time it transferred to the

United Automobile Workers The International Union, United Automobile, Aerospace, and Agricultural Implement Workers of America, better known as the United Auto Workers (UAW), is an American labor union that represents workers in the United States (including Puerto Rico) ...

.{{cite news , title=UAW MAY ABSORB 20,000; Agreement Covers Die Casters Who Quit Left-Wing Union , work=The New York Times , date=August 5, 1948

References

Metal trade unions Trade unions established in 1934 Trade unions disestablished in 1942 International Union of Mine, Mill and Smelter Workers