Graham: A few years ago the DuSable Museum in Chicago had a small exhibition of African-American stereotyping in advertising. You might contact Ramon ("Ray") Price, Chief Curator, DuSable Museum, 740 East 546th Place, Chicago, Illinois 60637. (302) 947-0600. Wendy Claire Jessup President and Conservator Wendy Jessup and Associates, Inc. 210 Little Falls Street, Suite 203 Falls Church, VA 22046 (703) 532-0788 (703) 532-1661 - fax