Final answer:
William James was the first American psychologist and a proponent of functionalism, influenced by Darwin. Mary Whiton Calkins and Margaret Floy Washburn were pioneering women in psychology, with Calkins being denied her Harvard Ph.D. and becoming the first female APA president and Washburn the first female to earn a Ph.D. in psychology.
Step-by-step explanation:
The individual you are asking about is William James, who was heavily influenced by Charles Darwin's theory of evolution and is recognized as the first American psychologist. James subscribed to the functional psychology perspective, which focused on the function of behavior and mental activities in adapting to the environment. His approach incorporated introspection along with more objective measures such as using recording devices, examinations of concrete mental activity products, and anatomy and physiology. James also allowed Mary Whiton Calkins to attend graduate school at Harvard, but she was denied the doctoral degree she earned because of her gender. Despite this, Calkins went on to become the first female president of the American Psychological Association (APA). Moreover, Margaret Floy Washburn was the first woman to earn a Ph.D. in psychology and later became the second female APA president. However, due to gender discrimination, she was also barred from joining the organization of experimental psychologists.