De Martelly became a close friend of Benton, and was influenced by his
Regionalist style. When Benton was fired from the Art Institute, the Board of Governors offered de Martelly Benton's job as head of the Painting Department. De Martelly was furious and quit. De Martelly's lithographs, sold through the
Associated American Artists Galleries in New York in the 1930s and 1940s, captured the essence of the rural American landscape. In 1943, de Martelly began teaching at
Michigan State University in
East Lansing, where he was named artist-in-residence in 1946. By the late 1940s, de Martelly abandoned Regionalism for
Abstract Expressionism and closely studied
Daumier. == Death ==