Dorothy Eaton was born in East Orange, New Jersey in 1893. She studied at Smith College, Columbia University, and at the Art Students League in New York City with Kenneth Hayes Miller.
She was a member of the Society of Independent Artists and the National Association of Women Artists. Eaton became a committed painter of the American Scene and exhibited widely. She was included in exhibitions at the Art Institute of Chicago, Carnegie Institute in Pittsburgh, Corcoran Gallery in Washington DC and the National Academy of Design in New York City.
During her career working at Smith College, Dorothy Eaton spent most of her life in Massachusetts painting rural scenes with figures. Her colors were bright and bold and her depictions were simple yet iconic.
Dorothy Eaton died in Chattam, New Jersey in 1968.