Deutscher Akademischer Austauschdienst, Berliner Künstlerprogramm (German Academic Exchange Service, Berlin Artists Program), West Germany, stipend, (renewed 1969)

Honorary Degree: Doctor of Fine Arts, Knox College, Galesburg, IL

Honorary Degree: Doctor of Letters, Williams College, Williamstown, MA

Fine Arts Award, American Institute of Architects

Skowhegan School of Painting and Sculpture Medal

Dillon Visiting Fellow, Groton School, Groton, MA

Sculpture commissioned by the New York State Council on the Arts for their Annual Award

Honorary Degree: Doctor of Letters, Union College, Schenectady, NY

Honorary Degree: Doctor of Fine Arts, Indiana University, Bloomington, IN

Elected to the National Institute of Arts and Letters

Award for Sculpture, Indiana Arts Commission

Elected Honorary Member of the Indiana Academy

Certificate of Appreciation in Art and Architecture, General Services Administration

Honorary Degree: Doctor of Fine Arts, Kalamazoo College, Kalamazoo, Michigan

Honorary Degree: Doctor of Humane Letters, York University, Toronto, Canada

Creative Arts Award Medal, Brandeis University, Waltham, MA

Citation, National Association of Schools of Art

Honorary Degree: Doctor of Fine Arts, Tulane University, New Orleans, LA

Honorary Degree: Doctor of Fine Arts, State University of New York at Purchase, Purchase, NY

New York State Governor's Arts Award, Albany, NY

Atlanta Urban Design Commission Award of Excellence, Atlanta, GA

Elected to Akademie der Künste, Berlin, Germany

City of Concord Design Award, Excellence in Integration of Sculpture and Landscape, Concord, CA

Honorary Degree: Doctor of Fine Arts, Rensselaer Polytechnic Institute, Troy, NY

Verdienstkreuz, 1. Klasse (Order of Merit, First Class) of the Federal Republic of Germany

Gold Medal for Sculpture, American Academy of Arts and Letters

The Lord Provost's Award 1996, City of Glasgow, Scotland, in Recognition of Services to the Visual Arts

Lifetime Achievement in Contemporary Sculpture Award, International Sculpture Center, Washington, D.C.

Honorary Degree: Doctor of Fine Arts, University of Notre Dame, Notre Dame, IN

Kunstpreis Finkenwerder 2002, (Finkenwerder Award), Hamburg, Germany