United Mine Workers

The United Mine Workers (UMW or UMWA) is a United States labor union that represents workers in mining. One of the groups in the forefront of the fight for collective bargaining in the early 20th century, the UMW was founded in Columbus, Ohio, on January 22, 1890, by the merger of two earlier groups, the Knights of Labor Trade Assembly No. 135 and the National Progressive Union of Miners and Mine Laborers. It was modeled after the American Federation of Labor (AFL).

Violent Clashes

Its history is filled with violent clashes with industrial leaders, including:

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• Lattimer Massacre - September 10, 1897. 19 miners were killed by police in Lattimer, Pennsylvania, during a march in support of unions.
• Ludlow Massacre - April 20, 1914. 20 people, including women and children, killed when police and hired guns broke up a tent colony formed by families of miners who had been evicted from company-owned housing.
• Matewan, West Virginia - May 19, 1920. 12 men were killed in a gunfight between town residents and the Baldwin Felts Detective Agency, hired by mine owners. This is depicted in the John Sayles film Matewan.