Squarespace V5 Site Server v5.13.594-SNAPSHOT-1 (http://www.squarespace.com)http://ilkahartmann.com/picture/01_cesar_chavez_1972.jpg?pictureId=10072394<p>Cesar Chavez, co-founder of the United Farm Workers Union, <br />with McGovern for President supporters ("Grassroot McGoverners" in the language of the time) marching from the Civic Center to Union Square in San Francisco against Proposition 22 which forbade secondary boycotts. <br /><br />Fall, 1972.</p>http://ilkahartmann.com/picture/02_cesar_chavez_carrying_flag.jpg?pictureId=10072395<p>Cesar Chavez, co-founder of the United Farm Workers Union, marching from the Civic Center to Union Square in San Francisco against Proposition 22 which forbade secondary boycotts. <br /><br />Fall, 1972.</p>