1952- 1957- 1960- 1963- 20thcentury 21stcentury american arizona art artandsociety california chicanoartcollectorsanonymous civilrights collectorsandcollecting einardela ethnicrelations exhibitions gonzalez hispanicamericanart history inart jamexdela laponsie losangeles mexican mexican-americanborderregion mexican-americanborderregioninart mexicanamericanartists mexicanamericanposters mexicanamericans modern motives old politicalposters politicsandgovernment politicsinart privatecollections ronald socialconditions southwest steve tempe themes torre