This document summarizes the contributions of several important female psychologists throughout history whose work was often overlooked or ignored. It describes how Anna Freud extended her father's psychoanalytic theories to child psychology, how Mamie Phipps Clark's doll experiments influenced the Brown vs. Board of Education decision, and how Mary Ainsworth developed the Strange Situation assessment of attachment in children. It also outlines the influential research of Sandra Bem, Mary Whiton Calkins, Leta Hollingworth, Karen Horney, Melanie Klein, Brenda Milner, and Susan Blackmore on gender roles, neuropsychology, psychoanalysis, and the science of memes.