Bachelor, University California, Berkeley, 1968. Master of Arts, University Pennsylvania, 1973. Doctor of Philosophy, University Pennsylvania, 1977.
Assistant curator American Numismatic Society, New York City, 1980-1982, associate curator, 1982-1986, curator, since 1986. Visiting professor Universita di Venezia, Venice, Italy, 1987-1988.
Member Federal International de la Medaille (United States of America delegate), American Medallic Sculpture Association, National Sculpture Society, Medieval Academy American, New York Numismatic Club.
Married Pamela McAbee December 28, 1968 (divorced 1976).