1. See Margaret W. Rossiter, “Faculty at Major Universities: The Antinepotism Rules and the Grateful Few,” in Women Scientists in America: Before Affirmative Action, 1940–1972 (Baltimore, MD: Johns Hopkins University Press, 1995).
2. Spencer Weart, “Scientists with a Secret,” Physics Today 29(2) (1976), 23–30, discusses physicists’ self-censorship of fission research.
3. Raul Hilberg, The Destruction of the European Jews: The Revised and Definitive Edition (New York: Holmes and Meier, 1985) provides a complete account of the Nazi era and what became known as the Holocaust. See also Christian Gerlach, “The Wannsee Conference, the Fate of German Jews, and Hitler’s Decision in Principle to Exterminate All European Jews,” The Journal of Modern History 70(4) (1998), 759–812, which discusses the mystery of why some German Jews were not only deported but killed before Wannsee had set up the policy.
4. Decades later, Trude asserted she had wanted children, but not so soon.
5. That is, she had no brothers. Interestingly, Lisa Randall, the distinguished theoretical physicist currently active, recently said in an interview in the Huffington Post that possibly women raised without older brothers are more likely to become scientists. She admits she has only anecdotal evidence, but it does fit Trude’s case. Lila Shapiro, “The One Question This Brilliant Physicist Wants People To Stop Asking Her,” The Huffington Post, December 15, 2015, http://www.huffingtonpost.com/entry/lisa-randall-women-science-questions_566f1b98e4b0e292150ebeb9 .