Albright-Knox Art Gallery, Buffalo, New York.
Allen Memorial Art Museum, Oberlin, Ohio
Carnegie Art Museum, Pittsburgh, Pennsylvania.
Cleveland Clinic Foundation, Cleveland, Ohio
James A. Michener Foundation, Kent State University, Kent, Ohio.
J. P. Najar / Obregon Foundation, Barcelona, Spain.
Museum of Fine Arts, University of Utah, Salt Lake City, Utah.
Nelson-Atkins Museum of Art, Kansas City, Missouri.
Paul Walter Foundation, New York, New York.
Progressive Corporation, Cleveland, Ohio.
San Francisco Museum of Art, San Francisco, California
Stanford University, Palo Alto, California.
Timpkin Foundation, New York, New York.
Wright State University, Dayton, Ohio.