married in April 1945. Leary was discharged at the rank of sergeant in January 1946, having earned such standard decorations as the Good Conduct Medal, the American Defense Service Medal, the American Campaign Medal, and the World War II Victory Medal. As the war concluded, Leary was reinstated at the University of Alabama and received credit for his Ohio State psychology coursework. He completed his degree via correspondence courses and graduated in August 1945. After receiving his undergraduate degree, Leary pursued an academic career. In 1946, he received a M.S. in psychology at the State College of Washington in Pullman, where he studied under educational psychologist Lee Cronbach. His M.S. thesis was on clinical applications of the Wechsler Adult Intelligence Scale. In 1947, Marianne gave birth to their first child, Susan. A son, Jack, arrived two years later. In 1950, Leary received a Ph.D. in clinical psychology from the University of California, Berkeley. In the postwar era, Leary was galvanized by the objectivity of modern physics; his doctoral dissertation (The Social Dimensions of Personality: Group Process and Structure) approached group therapy as a "psychlotron" from which behavioral characteristics could be derived and quantified in a manner analogous to the periodic table, foreshadowing his later development of the interpersonal circumplex. Professorship Leary stayed on in the Bay Area as an assistant clinical professor of medical psychology at the University of California, San Francisco; concurrently, he co-founded Kaiser Hospital's psychology department in Oakland, California, and maintained a private consultancy. In 1952, the Leary family spent a year in Spain, living on a research grant. According to Berkeley colleague Marv Freedman, "Something had been stirred in him in terms of breaking out of being another cog in society." Leary's marriage was strained by infidelity and mutual alcohol abuse. Marianne eventually died by suicide in 1955, leaving him to raise their son and daughter alone. He described himself during this period as "an anonymous institutional employee who drove to work each morning in a long line of commuter cars and drove home each night and drank martinis ... like several million middle-class, liberal, intellectual robots". From 1954 or 1955 to 1958, Leary directed psychiatric research at the Kaiser Family Foundation. In 1957, he published The Interpersonal Diagnosis of Personality, which the Annual Review of Psychology called the "most important book on psychotherapy of the year". In 1958 the National Institute of Mental Health terminated