Bachelor of Science, Georgetown University, 1958; Doctor of Philosophy, University of Virginia, 1963.
From instructor to assistant professor University Illinois, Urbana, 1962-1966. Member technical staff Institute for Defense Analyses/Communications Research Division, Princeton, New Jersey, 1966-1967. Assistant professor Drexel Institute of Technology, Philadelphia, 1967-1968.
From assistant professor to professor mathematics Florida Atlantic University, Boca Raton, since 1968. Visiting associate professor University Waterloo (Ontario, Canada), 1975. Member visiting faculty International Business Machines Corporation, Boca Raton, 1982-1983.
Board directors Teletimer International, Inc., Boca Raton.
County officer Parent-Teachers Association, Palm Beach County, Florida, 1976-1982. Chapter treasurer University Faculty Florida, Boca Raton, 1988-1991, chapter secretary, 1991-1992. Fellow Institute for Combinatorics and Its Applications (member council).
Member Institute of Electrical and Electronics Engineers, Institute of Electrical and Electronics Engineers Computer Society (treasurer, technical committee 1985), Mathematics Association American (committee chair 1987-1991, board editors 1988-1991), American Mathematics Society, Society Industrial and Applied Mathematics, Association Computing Machinery, American Association Artificial Intelligence, Sigma Xi (president Florida Atlantic University Club 1991-1995).
Married Elisabeth Moffatt Clark, December 15, 1968 (divorced 1993). Children: Sara Millen, Amanda Ann, David Clark, Jessica Thorne.