Listen to Dolores Huerta, a civil rights activist who cofounded the UFW, speak about the unsafe and inhumane working conditions the union and its supporters fought to change. The children pictured here are harvesting strawberries in a field in 1976.

Audio, Museum collection, the WFMT/Studs Terkel Archives, T2616; Photograph by Cathy Murphy, courtesy of the United Farm Workers Walter P. Reuther Library, Wayne State University