Harper Lee
There is no way you do not know that Harper Lee wrote To Kill A Mockingbird. The author never had kids nor married. In fact, she lived a private life before she passed away in 2016. Her biographer Maria Mills said that although she did date in the past, she never found anything serious.
Janet Napolitano
If you do not know who Janet Napolitano is, she was the Attorney General and Governor of Arizona as well as the US Security of Homeland Security. Did you know she is also the President of the University of California system? She has quite the impressive resume, and we bet she prioritized her career over love.