Virginia Heinlein
Virginia Doris Heinlein (nee Gerstenfeld; April 22, 1916 – January 18, 2003) was an American chemist, biochemist, engineer, and the third wife and muse of Robert A. Heinlein, a prominent and successful author often considered one of the "Big Three" of science fiction (along with Isaac Asimov and Arthur C. Clarke).
Provided by Wikipedia