Bachelor of Science in Nuclear Engineering, University Wisconsin, Madison, 1970. Master of Science in Radiation Biology, University Wisconsin, Madison, 1973. Doctor of Philosophy in Radiation Biology, University Wisconsin, Madison, 1976.
Professor radiation oncology Duke University Medical Center, Durham, North Carolina, since 1977. Invited speaker Nobel Symposium on Epigenetics, 2004.
Member of Society Toxicology (associate), Federation American Societies Experimental Biology (associate), American Society Human Genetics (associate), American Association Cancer Research (associate).
Married Nancy McGinnis, October 22, 1983. Children: James, Bonnie.