ca. 1952–1956 - Internal museum documents Publicity report for the exhibition Studies for Guernica by the School of Fine and Applied Arts, Columbus, Ohio, addressed to the Travelling Exhibitions Department at the Museum of Modern Art, New York
New York, 14 August 1942 - Internal museum documents Elodie Courter Osborn's letter to Alfred H. Barr Jr.
New York, 20 August 1942 - Internal museum documents Elodie Courter Osborn's letter to Dorothy Dudley