Student, Art Students League, New York City, 1938-1942, 46; pupil of, Jose de Creeft pupil of, City College New York, 1940-1942, 46-47; student, Hofmann School, 1941-1942, 48-50.
Teacher, University of California at Berkeley, 1961-1962; Teacher, Yale, 1967; Teacher, University of Minnesota, 1968; teacher, School of Visual Arts, since 1979.
Served with United States Army, World World War II, 1942-1946.
Married Patsy Southgate (divorced). Stepchildren: Lucas Matthiessen, Sarah Carey Matthiessen. Married Lynn Umlauf, 1979.