Biologist, chemist and inventor Sharon J. Barnes was born on November 28, 1955 to Selena and William Jefferson McDonald in Beaumont, Texas. She attended Sisblee High School where she received three scholarships to attend college. In 1978, Barnes received her B.S. degree in biology-chemistry and clinical laboratory science. During her time in college she interned at clinical laboratory science program for the Baptist Hospital of Southeast Texas. Link: http://www.thehistorymakers.com/biography/sharon-barnes