New York, 1978 - Internal museum documents An internal letter on the departure of Guernica from the Museum of Modern Art, New York
Minneapolis, 18 January 1962 - Institutional correspondence Wayne W. Andersen's letter to Nelson Rockefeller
New York, 26 June 1978 - Institutional correspondence A letter from Judith Cousins to William Burback
New York, 30 September 1978 - Internal museum documents A letter featuring Roland Dumas's statements about Guernica
New York, 26 April 1962 - Insurance documents Alfred H. Barr Jr.'s letter to Daniel-Henry Kahnweiler, dated 26 April 1962