Ray Cuzzort, professor emeritus of sociology at the University of Colorado at Boulder, died at his home in Boulder on Monday. He was 72. A memorial service will be held at the Old Main Chapel on campus on Tuesday, Aug. 31, starting at 11 a.m. This will be followed by an informal reception at his home, 1300 Elder Ave., at 12:30 p.m. Cuzzort, who was born in Cincinnati, Ohio, and received his doctorate from the University of Minnesota, began working at CU-Boulder in 1966, was chair of sociology in the early 1980s and retired in 1988.