Maria L. Martinez

Maria L. Martinez is an American labor activist and community advocate. She is best known for leading a 1999 IBP wildcat strike at the Iowa Beef Processors (later Tyson Foods) beef processing plant in Wallula, Washington, and for her role in reforming Teamsters Local 556. She later became an advocate for survivors of domestic violence in Benton and Franklin counties, Washington.

Early life and education Martinez was born in California into a large migrant farmworking family, one of 19 children. She grew up working as a migrant farmworker before being hired at Iowa Beef Processors Wallula, Washington plant in the late 1980s. She worked there for about a decade.

That summer, she was nominated as a candidate for IBT Western Region International Vice President on the Tom Leedham "Rank and File Power Slate."

Shortly afterward, Iowa Beef Processors rescinded the longstanding practice of assigning the chief steward to the plant's insurance clerk position, which carried higher pay, and forced Martinez back to production line work. The IBT Election Officer noted that IBP provided no documentation of alleged performance problems and that the timing was "proximate" to her candidacy and her role in filing a class action wage-and-hour lawsuit against IBP.

The strike lasted approximately five weeks. In the aftermath, Teamsters president James P. Hoffa placed Local 556 under trusteeship, removing Martinez and other reform-oriented leaders from their positions.

As Local 556 leader, she built coalitions linking immigrant workers with students, consumer activists, and animal welfare groups. Tyson Foods attempted to bar her from the Wallula plant and supported a decertification effort against the union. from Columbia Basin College. After graduating, she immediately went on to be an advocate for victims of domestic violence with Domestic Violence Services of Benton and Franklin Counties, helping victims facing unsafe and hostile living situations.

Legacy Eric Schlosser has described Martinez as "one of America's finest union leaders." Labor historians cite her role in the Wallula strike and subsequent campaigns as emblematic of immigrant women's leadership in the late-20th-century U.S. labor movement.