("American Primitives") and 1931 ("American Folk Sculpture"). While at Newark, he also published fiction, essays and short stories including art criticism for the magazines Shadowland International Studio and the New York Herald Tribune. He published a novel, Profane Earth in 1927 and, in 1930, "A Yankee Adventurer" a biography of Frederick Townsend Ward and his role in the Taiping Rebellion of 1861. At Newark, he met his future wife, Dorothy Canning Miller whom he married in 1938. Together with the galleries Edith Halpert of the Downtown Gallery, Cahill published a monograph on Pop Hart in 1928, Max Weber in 1930 and Jules Pascin in 1931. Halpert and Cahill also launched a magazine called Space that ran for three issues in January, March and June, 1930. In 1932–33, Cahill served as acting director of the Museum of Modern Art when the founding director, Alfred H. Barr Jr., took a leave of absence. He organized several notable exhibitions including American Sources of Modern Art, American Folk Art: Art of the Common Man in America and a survey exhibition, American Painting and Sculpture 1862–1932. In 1934, he directed the First Municipal Art Exhibition at Rockefeller Center in New York; the exhibition coincided with the destruction of the mural by Diego Rivera and many of the artists threatened to withdraw. When Cahill left Newark, he employed Dorothy Miller as his assistant on his various projects. At the First Municipal Art Exhibition, Miller stepped in as Director when Cahill landed in the hospital and was unable to continue which led to her later position as curator at the Museum of Modern Art. From August 1935 until April 1943, Cahill was the national director of the Federal Art Project, the role for which he is best known today. His contributions to the research, documentation and understanding of the visual arts in America were wide-ranging—from the earliest crafts of the Native Americans to the abstract expressionists. In the 1920s, his early endorsement of American folk art as well as the early American modernists introduced their work to a larger public through exhibitions, catalogues and criticism. During his tenure of the WPA, his oversight of the Index of American Design established a greater understanding of the variety and quality of American iconographic imagery. Cahill proved to be an imaginative, sensitive and skillful administrator. Under his leadership community art centers were established in over 100 towns and cities nationwide,