1938
Born to James Kirkwood and Doris (Schuler) Selkirk in New York City.
1959
Serves in the U.S. Army Chemical Corp until 1961.
1961
Marries Carole Ann Bozzone on September 16.
1964
Earns a BS in environmental chemistry from the Environmental College of Forestry and a BS in chemistry from Syracuse University.
1969
Obtains a PhD in biochemistry from the SUNY Upstate Medical Center.
1969
Is a postdoctoral fellow at the McArdle Laboratory for Cancer Research at the University of Wisconsin-Madison until 1972.
1972
Is a staff fellow and senior staff fellow of the National Cancer Institute at the National Institutes of Health until 1975.
1975
Is a senior staff scientist and unit leader in chemical carcinogenesis in the Biology Division at Oak Ridge National Laboratory until 1985.
1975
Teaches as an adjunct professor at Oak Ridge Biomedical Graduate School at the University of Tennessee until 1985.
1975
Is a member of the American Cancer Society’s Carcinogenesis Study Section until 1978 and again from 1992 to 1996.
1979
Is a member of the breast cancer task force with the National Institutes of Health until 1982.
1981
Is a member of the committee on pyrenes and analogs with the National Academy of Sciences until 1983.
1985
Is chief of carcinogenesis and toxicology evaluation branch at the National Institute of Environmental Health Sciences (NIEHS) until 1989.
1986
Serves as chairman of the Interagency Testing Commission until 1990.
1989
Is an associate director of the Division of Toxicology Research and Testing at the NIEHS until 1992.
1992
Is chief of the carcinogen mechanism group at the Laboratory of Molecular Carcinogenesis at the NIEHS until 1997.
1996
Is chairman of the Weaver Dairy Precinct for the Dem. Party of Orange County until 1999 and on the Orange County Planning Board until 2009.
1997
Is special assistant to the science director for technology development at the NIEHS until 2000.
2000
Serves as deputy director of the National Center for Toxicogenomics until 2009.
2016
Is selected to the 2000 Outstanding Intellectuals of the 21st Century.