/


American chemist and educator
Helen Murray Free (* 20. February 1923 in Pittsburgh; † 1. May 2021 in Elkhart) was an american chemist and educator. She was 98 years old. She was married to Alfred Free. Her education included College of Wooster, Central Michigan University and Poland Seminary High School. She received 5 awards, including National Medal of Technology and Innovation, National Inventors Hall of Fame.