Mary Cover Jones (1896–1987) This photograph, taken around 1919, shows Mary Cover Jones as a college student in her early 20s. Although Jones pioneered the use of behavioral techniques in therapy, she did not consider herself a “behaviorist” and ultimately came to disagree with many of Watson’s views. Fifty years after she treated Peter, Jones (1975) wrote, “Now I would be less satisfied to treat the fears of a three-year-old … in isolation from him as a tantalizingly complex person with unique potentials for stability and change.”

Larson/Watson Papers, Archives of the History of American Psychology, The University of Akron