During the Delano grape strike, the leaders of the United Farm Workers realized that public support was key to their chances of successfully pressuring the growers into more just wages. Through a national network of support groups and boycott committees, the union made the struggle for unionization part of the larger civil rights movement of the 1960s and 1970s. Supporters often displayed buttons or bumper stickers, such as this one with a bunch of grapes in the form of a skull, to show their allegiance with the cause of the agricultural workers. This burst of public attention did not last long, and pay and working conditions for agricultural laborers remained poor.
Division of Politics and Reform, National Museum of American History.