Boards
1989 to present, The Studio Museum in Harlem, Board of Directors

1989 to present, Skowhegan School of Art, Board of Governors

Fine Arts Workshop, Provincetown, Massachusetts, Board of Directors

Sculpture Center, New York, Board of Directors

Cinque Gallery, New York. Board of Artistic Advisors

Past chairman, Sculpture Jury for the International Institute of Education

Past member. Board of Directors, Organization of Independent Artists

Past member. Board of Artist Advisors, Alternative Museum, New York

Past member. Board of Artist Advisors, New Museum, New York