Original: The Marcus collections included significant works by Mexican artists Rufino Tamayo, David Alfaro Siqueiros, Diego Rivera, and Rivera's lesser-known friend and colleague Antonio Ruíz; the American sculptor Alexander Calder, and American painter Georgia O'Keeffe.
Simplified: His favorite artists from Mexico were Rufino Tamayo, David Alfaro Siqueiros, Diego Rivera, and Antonio Ruíz.