"Left to right: Anna Duncan, Mary F. Roberts, Augustin Duncan, Maria Theresa(Oct. 20, 1941)," at the exhibition,"Isadora Duncan: Drawings, Photographs, Memorabilia."
October 21, 1941–January 10, 1942. Photographic Archive. The Museum of Modern Art Archives, New York. IN154.4. Photograph by Albert Fenn.
