The Irascibles. Nina Leen (photographer), November 24, 1950, Time Life Pictures/Getty Images. Front row: Theodoros Stamos, Jimmy Ernst, Barnett Newman, James Brooks, Mark Rothko; middle row: Richard Pousette-Dart, William Baziotes, Jackson Pollock, Clyfford Still, Robert Motherwell, Bradley Walker Tomlin; back row: Willem de Kooning, Adolph Gottlieb, Ad Reinhardt, Hedda Sterne