This 1974 photo provided by the Cesar Chavez Foundation shows, Cesar Chavez, right, and wife Helen Chavez, during a European tour promoting the grape boycott in London. Helen Chavez, widow of civil rights and labor leader Cesar Chavez, has Monday at age 88. (Cesar Chavez Foundation via AP)
This 1974 photo provided by the Cesar Chavez Foundation shows, Cesar Chavez, right, and wife Helen Chavez, during a European tour promoting the grape boycott in London. Helen Chavez, widow of civil rights and labor leader Cesar Chavez, has Monday at age 88. (Cesar Chavez Foundation via AP) AP
This 1974 photo provided by the Cesar Chavez Foundation shows, Cesar Chavez, right, and wife Helen Chavez, during a European tour promoting the grape boycott in London. Helen Chavez, widow of civil rights and labor leader Cesar Chavez, has Monday at age 88. (Cesar Chavez Foundation via AP) AP