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Clark Daniel Shaughnessy (born March 6, 1892, St. Cloud, Minnesota, U.S.—died May 15, 1970, Santa Monica, California) was a coach of American college and professional football who inspired the general revival of the T formation, which had been in disuse for many years. As head coach at the University of Chicago (1933–39), he inherited a de-emphasized football program from Amos Alonzo Stagg and presided over its demise when Chicago’s president, Robert Hutchins, dropped football after...