Instructor photography California School Fine Arts, San Francisco, 1946-1952. Courator, editor in photography George Eastman House, Rochester, New York, 1952-1955. Lecturer photography Rochester Institute Technology, 1955-1964.
Professor photography Massachusetts Institute of Technology, Cambridge, 1965-1976. Board of directors Society of Photographic Education, Friends of Photography. Board advisers Imageworks-school and Center of Photography.