Background
Clark O'Brien, John was born on November 12, 1942 in Troy, New York, United States.
Clark O'Brien, John was born on November 12, 1942 in Troy, New York, United States.
Yale University (Bachelor of Arts, 1964). Harvard University Law School (Juris Doctor, 1967).
Admitted to the bar, 1967, New York. 1970, District of Columbia. 1974, Illinois; 1977, Missouri.