Student, Central Michigan College, Mount Pleasant, 1958-1961; student, Delta College, University Center, Michigan, 1962-1970.
Research associate, Dow Corning Corporation, Hemlock, Michigan, 1961-1970; with research development department, High Performance Technology, Midland, Michigan, 1970-1972; research associate, Hughes Research laboratories, Malibu, California, 1972-1974; process engineer, Galamar Industries, Palo Alto, California, 1974-1978; president, owner, Kosdale of Michigan, Sanford, 1978-1982; consultant, Sanford, since 1975; account executive, Thomson-McKinnon Securities, Midland, 1982-1989; finance advisor, Prudential-Bache Securities, Midland, 1989-1991; investment representative, Edward D. Jones & Company, Midland, since 1991.
With United States Air Force, 1959-1964. Member European Association of Archaeologists, Aircraft Owners and Pilots Association, Midland Country Club, Hemlock Area Junior Chamber of Commerce (president 1969).
Married Janice E., April 20, 1961 (divorced 1973). Married Karen L., July 26, 1980. Children: Robert L., Michelle, Scott.