The Spiritual in Art: Abstract Painting 1890-1985, Los Angeles County Museum of Art, Los Angeles, California, November 23, 1986 – March 8, 1987; Museum of Contemporary Art, Chicago, Illinois, April 17 – July 19, 1987; Haags Gemeentemuseum, The Hague, The Netherlands, September 1 – November 22, 1987 (Los Angeles and Chicago only)