Summers also has a thirty-six year affiliation with the Dallas Museum of Art and is a member of the Architecture and Design Council at the Palm Springs Art Museum.
British Museum | Museum of Modern Art | Art Deco | Metropolitan Museum of Art | Colorado Springs, Colorado | American Museum of Natural History | Art Institute of Chicago | Victoria and Albert Museum | Natural History Museum | San Francisco Museum of Modern Art | National Gallery of Art | Honolulu Museum of Art | museum | Whitney Museum of American Art | Palm Beach, Florida | Museum of Fine Arts, Boston | Los Angeles County Museum of Art | Solomon R. Guggenheim Museum | Palm Springs, California | National Air and Space Museum | Brooklyn Museum | Alice Springs | National Baseball Hall of Fame and Museum | Art Nouveau | Royal College of Art | Colorado Springs | Palm Beach | Walker Art Center | Hermitage Museum | National Museum of Racing and Hall of Fame |
Another notable institutional show was Ten California Colorists, a group exhibition in 1985 that traveled to Redding Art Museum, San Jose Institute of Contemporary Art, Palm Springs Desert Museum, Montgomery Gallery at Pomona College and University Art Museum at the University of New Mexico.