His junior year of high school was spent in Japan. Turning down an appointment to West Point, he came to Princeton and was a member of Terrace Club and majored in architecture.
Drafted into the Army in August 1953, he rose to the rank of sergeant major before leaving the service and beginning his architectural career in Alexandria, Va. In 1958 he moved to Cleveland, Ohio, was hired by Conrad & Simpson Architects, and was made a partner seven years later. When the founding partners retired, Clark, along with fellow architect and partner John Wenzel, created Tufts & Wenzel Architects, specializing in hospitals and medical facilities and working primarily in Ohio and Kentucky.
Clark’s high school exposure to Japan led to a lifelong interest in that country and its culture. He made numerous trips to the country, became fluent in the language, and in 2008 earned a master’s degree in East Asian Studies from the University of Leeds.
Clark was an active member of his Christian Science congregation and the Cleveland Rotary Club and held leadership roles in both organizations.
Clark died Dec. 2, 2020, in Cleveland. He was predeceased by his wife, Barbara, and is survived by his son, Thomas Clark Tufts III.