Bachelor, University of California, Berkeley, 1962; Master of Arts, University of California, Berkeley, 1964; Doctor of Philosophy, University of California, San Diego, 1971.
Lecturer, San Diego State University, 1973-1977; assistant professor, San Diego State University, 1977-1981; associate professor, San Diego State University, 1981-1988; professor, San Diego State University, since 1988. Visiting assistant professor Aarhas U. Denmark, 1971-1972. Consultant AMBIS, Inc., San Diego, 1984-1985, Woodward-Clyde Cons., 1985, 87-91.
Member Planned Parenthood, San Diego. Member of American Association for the Advancement of Science, Civil War Round Table, San Deigo, San Diego Association Rational Inquiry (secretary 1998—2001, treasurer since 2002), American Women Science, American Society Microbiology, Daughters of Union Veterans of Civil War (patriotic instructor Nancy Lincoln Tent 2007-2009), British Isles Genealogical Research Association (secretary 2006-2009), Phi Beta Kappa (correspondent secretary Nu chapter California 1994—2002, historian since 2003, past president), Sigma Xi.
Married Edvard Alfred Hemmingsen, August 5, 1967. 1 child, Grete.