A group of well-established American painters from Boston and New York who exhibited together from 1898 to 1919 after resigning from the Society of American Artists, whose exhibitions they considered too conservative and too large. Most of the members of the group had studied in Paris in the 1880s and the common factor in their work was an interest in Impressionism. They included Childe Hassam and W. M. Chase (who replaced John H. Twachtman (1853–1902) after his death). The Ten was also the name of a group of American Expressionist painters who exhibited together from 1935 to 1940. Gottlieb and Rothko were among the members.