New World Diego Rivera Night of the Rich ( 1928) Man at the Crossroads - Rockefeller Plaza ( 1933) Frida Kahlo Suicide of Dorothy Hale ( 1939) David Alfaro Siqueiros Echo of a Scream (1937) Collective Suicide (1936) Jose Clemente Orozco Zapatistas American Civilization - The Gods of the Modern World ( 1932) Georgia Okeefe ( ) Modernist Jack-in-the-Pulpit, No.5 (1930) Elegant geometry Georgia Okeefe ( ) Sky Above the Clouds ( ) Edward Hopper ( ) Ash Can School Nighthawks (1942) Urban melancholy Ben Shahn ( ) Red Staiway (1944) Social Consciousness