Seth Eastman: Pioneer of American Landscape Painting and Chronicler of Native American Life Seth Eastman (1808-1875) stands as a singular figure in the annals of American art history—a soldier, an explorer, and above all, a prolific painter whose canvases captured the dramatic realities of frontier life and profoundly shaped the Hudson River School’s aesthetic vision. Born in Lebanon Township, New Jersey, Eastman's early life was mark…