Letter from Ernest Smith to Dennis Carter on MIT stationery, Cambridge MA, 21 October 1946, with a discussion of this trip via Chicago and Detroit to Cambridge MA, and of his teacher György Kepes (Winnipeg Architecture Foundation); György Kepes, “The Task of Visual Advertising,” in: PM Digest, n.d. (ca. 1940), Kepes insert, pp. 8-9; Kepes insert, Chicago: School of Design, n.d. (ca. 1940), open to frontispiece dedicated by Kepes; György Kepes, ed., Centre for Advanced Visual Studies (brochure), Cambridge MA: The MIT Press, n.d. (ca. 1970) (Unless otherwise indicated, items are from a private collection)