Harry "Tony" Leith-Ross was a British-American landscape painter and teacher. He taught at the art colonies in Woodstock, New York and Rockport, Maine, and later was part of the art colony in New Hope, Pennsylvania. A precise draftsman and a superb colorist, Leith-Ross is considered one of the Pennsylvania Impressionists.

John Fulton "Jack" Folinsbee was an American landscape, marine and portrait painter, and a member of the art colony at New Hope, Pennsylvania. He is best known today for his impressionist scenes of New Hope and Lambertville, New Jersey, particularly the factories, quarries, and canals along the Delaware River.