Party affiliation: Democrat
Graduate assistant Southern Illinois University, Carbondale, 1972-1973. Commissioned Second lieutenant United States Air Force, 1973, advanced through grades to lieutenant colonel. Laboratory biomedical audiologist Air Force Medical Research Laboratory, Wright-Patterson Air Force Base, Ohio, 1973-1981, research associate, 1983-1984.
Chief department audiology Air Force Regional Medical Center, Clark Air Base, Philippines, 1984-1986. Research audiologist Armstrong Aerospace Medical Research Laboratory, Wright-Patterson Air Force Base, 1986-1988. Deputy director technical integration division Air Force Medical Research Laboratory, 1988-1991.
Executive manager advanced technical development Armstrong Laboratory, Brooks Air Force Base, Texas, 1991-1993. Associate chief United States Air Force biomedical Sciences Corps, 1991-1993. Research audiologist Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, since 1993.
Consultant American Society of Mechanical Engineers, 1980-1982, committee hearing bioacoustics and biomechanics National Academy of Sciences, 1976-1980, 91—, Command Surgeon of Pacific Air Forces, 1985-1986. Chief consultant in audiology United States Air Force Surgeon General, since 1990. Adjunct assistant professor The Ohio State University, since 1991.
Counselor merit badge Boy Scouts American, Dayton, coordinator Tiger Cubs, 1986-1987. Member Acoustical Society of America, Ohio Council Audiology, Military Society Audiologists and Speech Pathologists, Air Force Audiology Society (vice president 1991, president 1992), Company Grade Officers Council (president 1976), Alpha Delta Upsilon (president 1970).