He was also one of the founders of Ashcan school of American art. (widewalls.ch)
Robert Henri Biography of Ashcan School Painter, New York Cityscapes. (visual-arts-cork.com)
In 1920 he made his way to New York, fulfilling a long held ambition to become an artist through formal studies at the Art Students League with Ashcan painter John Sloan. (hamptonsarthub.com)