Bachelor of Arts, University of California at Santa Barbara, 1951; Master of Arts, Columbia, 1956; Doctor of Philosophy, Columbia, 1957.
Instructor philosophy, Brooklyn College, 1956-1957; member of faculty, Pomona College, since 1957; professor philosophy, Pomona College, since 1966; department chairman, Pomona College, 1965-1971. Member Executive Committee Claremont Colls. Senate, 1969-1970.
Served with United States Navy, 1946-1948. Member International Congress Philosophy Science (member program committee 1971), American Philosophical Association (member executive committee Pacific division 1969-1973, chairman 1971-1972), A.A.U.P. (president chapter 1969-1970), American Association for the Advancement of Science.
Married Jean Howells Watkins, November 20, 1951. Children– Holly, Douglas, Victoria.