Bachelor of Science, Massachusetts Institute of Technology, 1960; Doctor of Philosophy, University of California, Berkeley, 1967.
Physicist National Bureau Standards, Gaithrsburg, Maryland, 1967-1975. President Koonce Securities, Inc., Bethesda, 1979-1999, chairman, since 1999. President Montgomery Investment Management, since 1989.
Member American Physical Society, Security Traders Association of Washington (president 1987), Beta Theta Pi.
Married Janet Elizabeth Bell, July 22, 1967: children: Elizabeth Ann, Kathleen Sharon, Franklin Scott.