Sheila Widnall

Sheila Marie Evans Widnall (born July 13, 1938) is an American aerospace researcher and Institute Professor Emerita at the Massachusetts Institute of Technology (MIT). She served as United States Secretary of the Air Force from 1993 to 1997, making her the first woman to hold that post and the first woman to lead an entire branch of the United States Armed Forces in the Department of Defense. She was inducted into the National Women's Hall of Fame in 2003. Provided by Wikipedia