By Will Heinrich Katherine Porter, a painter who carried an intuitive, dreamy, vividly colored branch of Expressionism into the 21st century, died on April 22 at her home in Santa Fe, N.M. She was 82.

In a 1969 interview, the American painter, art critic and poet Fairfield Porter (1907-1975) called the light in New York City “far more beautiful than Paris or Rome.” Porter was reportedly ...