Simplify the following text for a Grade 8 native English-speaking person.
Original: Hazel Reid O'Leary ( born May 17 , 1937 ) was the seventh United States Secretary of Energy , from 1993 to 1997 , appointed by President Bill Clinton .
Simplified: Hazel Reid O'Leary ( born May 17 , 1937 ) was the seventh United States Secretary of Energy , from 1993 to 1997 .