SEPARATED. Dorothy Hamill, 26, vivacious American ice-skating sensation of the 1976 Winter Olympics; and Dean Paul Martin, 31, actor and son of Entertainer Dean Martin; after 1 1/2 years of marriage, no children; in Santa Monica, Calif.
SEEKING DIVORCE. Roone Arledge, 52, aggressive, innovative president of ABC News and Sports; and Ann Arledge, 35, former Miss Alabama; in New York City.
DIED. Humberto Cardinal Medeiros, 67, theologically conservative leader of Boston's archdiocese, the nation's third largest; of heart failure; in Boston. Ordained in 1946, he became bishop of Brownsville, Texas, in 1966 and succeeded Boston's Richard Cardinal Gushing in 1970. "A gentle, compassionate...