Rosalyn S. Yalow  (1921 - )
First American woman trained in the U.S. to win the Nobel Prize for Medicine. Known for pioneering the use of radioisotopes to analyze physiological systems, Yalow made possible very detailed analysis of blood chemistry, saving lives and allowing for proper doses of medication.

Gloria Yerkovich  (1942 - )
Founder of CHILDFIND, a nationwide organization which helps locate missing children. Yerkovich developed the program after her own daughter was abducted. Her concept was the prototype for the National Center for Missing and Exploited Children.