Brought to Tufts in 1939 by his mentor, Tufts president
Leonard Carmichael, Wessell taught psychology (1939–1947) and was dean of liberal arts (1939–1953) and vice president (1951–1953). Upon becoming president of the college on December 9, 1953, he called for Tufts to become a university, leading the Massachusetts Board of Corporations to change the name from Tufts College to Tufts University. In addition to the name change, Wessell committed to developing graduate programs in the colleges of arts, sciences and engineering in order to become a true research university. Biology and chemistry laboratories, an engineering building, new dormitories, and the Wessell Library were built during his presidency, and the Experimental College and Lincoln Filene Center for Public Service were opened. He resigned in 1966 due to his belief in "change in the office of president in a university every 10 or 15 years." ==Later life==