Trained as a chemist at Yale, Clark Greenwood Voorhees was attracted to sketching nature more than science. The New Yorker traveled up to Old Lyme on the Connecticut coast as early as 1893, where he became instrumental in the development of a leading art colony. Now, Hawthorne Fine Art on New York's Upper East Side is presenting the first major show of the artist's work in 30 years. "It is exceedingly rare to uncover a hidden trove of work by a first-rate American Impressionist, especially one with so many polished large-scale works," says gallery owner Jennifer Krieger.