Similarly, Mary Engle Pennington (1872–1952), an American chemist and refrigeration engineer, completed the requirements for a BS degree in chemistry at the University of Pennsylvania in 1892, but was given a certificate of proficiency instead.
Mary Engle Pennington was born in Nashville, Tennessee; her parents were Henry and Sarah B. (Malony) Pennington.
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She is also an inductee of both the National Women's Hall of Fame and the ASHRAE Hall of Fame.
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