Sandra Day O'Connor
She was the first woman to serve on the U.S. Supreme Court.
Learn about her on Wikipedia
Interestingly, Sandra Day was not recorded in the census along with her parents (Harry Day and Ada Mae Day) at the cattle ranch where she grew up near Duncan, Arizona. She was born in El Paso, Texas (where her maternal grandparents lived) just a few days before the census enumerator visited the ranch. Her father had returned from El Paso by then, but her mother did not return with Sandra until several days later. Although we can only speculate, it is reasonable to assume that the enumerator in Arizona decided the ranch didn't yet count as the usual place of abode for a baby that had never been there, while the enumerator in Texas assumed she would be recorded at her parents' ranch instead of a temporary location. Whatever the reason, Sandra was not recorded in either place. This is one example of many inaccuracies in the census.