New York, 26 June 1978 - Institutional correspondence A letter from Judith Cousins to William Burback
ca. 1952–1957 - Internal museum documents Publicity report for the exhibition Studies for Guernica by the Cincinnati Art Museum, addressed to the Travelling Exhibitions Department at the Museum of Modern Art, New York
New York, February 24, 1970 - Letter A letter from Walter Bareiss and Robert Von Berg to Wilder Green