Bachelor, University of Pennsylvania, 1973; Master of Arts, Harvard University, 1975; Doctor of Philosophy, Harvard University, 1982.
Assistant professor of history, Oberlin (Ohio) College, 1981-1987; associate professor, Oberlin (Ohio) College, since 1987. Associate dean arts and science Oberlin College, 1992-1996. Consultant, evaluator North Control Association, Chicago, since 1995.
Trustee Oberlin History and Improvement Organisation, since 1996. Member Region IV selection committee Mellon Fellowships in Humanistic Studies, 1994-1998. Volunteer Oberlin Public Schools.
Co-founder Electronic Oberlin Group. Member American History Association, Organisation American Historians, Society for Historians of the Early American Republic, Phi Beta Kappa.
Married Gary J. Kornblith, June 6, 1980. Children: Russell, Max, Simon.