Reference
Stebbins, Theodore E., Jr. American Master Drawings and Watercolors: A History of Works on Paper from Colonial Times to the Present. New York, 1976.
American Master Drawings and Watercolors: A History of Works on Paper from Colonial Times to the Present, Whitney Museum of American Art, New York, New York, United States, November 23, 1976 – January 23, 1977. American Master Drawings and Watercolors: A History of Works on Paper from Colonial Times to the Present, Minneapolis Institute of Arts, Minneapolis, Minnesota, United States, September 1 – October 26, 1976. American Master Drawings and Watercolors: A History of Works on Paper from Colonial Times to the Present, Fine Arts Museum of San Francisco, San Francisco, California, United States, February 20 – April 17, 1977.