The United Farm Workers rally photographs comprise a total of 53 photographic prints and 35 negatives of a United Farm Workers of America (UFWA) rally and other subjects taken in the late 1960s and early 1970s. The majority of the photographic prints (approximately 31) and all of the negatives show scenes from a UFWA rally in San Francisco, California. The rally photographs show speakers and musicians on a stage that is emblazoned with a banner of the UFWA logo and the slogan "Si Se Puede - Boycott Lettuce and Grapes." Among the half dozen or so speakers, one appears to be Cesar Chavez and another Dolores Huerta, the leaders of the UFWA and its grape boycott in California, which lasted for more than a decade between 1965 and 1978. Also shown is a banjo player, likely Pete Seeger. The rally photographs are accompanied by 22 photographs featuring street scenes, murals, city views, and other images taken in Mexico and California. A handful of these photographs appear to picture Joan Baez, also an ally of organized labor and other political causes. In one of the photographs, Baez is reading George Orwell's A Clergyman's Daughter. Each of the photographic prints measures three by five inches. The photographer who took the photographs is unknown. Also included in the collection is the branded envelope provided by the developer and printer of the photographs, Willoughby.