New York, 17 June 1957 - Institutional correspondence Alfred H. Barr Jr.'s letter Pablo Picasso, dated 17 June 1957
New York, 17 December 1957 - Institutional correspondence Alfred H. Barr Jr.'s letter to Pablo Picasso, dated 17 December 1957
New York, 2 June 1957 - Press release and communication Picasso: 75th Anniversary. Record breaking crowds
August, 1957 - Institutional correspondence A letter from Jacqueline de la Baume Dürrbach to Nelson Rockefeller
Paris, 27 February 1958 - Institutional correspondence Daniel-Henry Kahnweiler's letter to Alfred H. Barr Jr., dated 27 February 1958
New York, 18 April 1958 - Institutional correspondence A telegram from Alfred H. Barr Jr. to Pablo Picasso, dated 18 April 1958
ca. 1958 - Internal institutional documents Request sheet for the replica Guernica tapestry, to be included in the exhibition La influencia del cubismo en el diseño de tapices (The Influence of Cubism in Tapestry Designs), in Arras
New York, 31 December 1959 - Institutional correspondence Alfred H. Barr Jr.'s letter Pablo Picasso, dated 31 December 1959
New York, 22 September 1960 - Management of reproduction rights Alfred H. Barr Jr.'s letter Pearl Moeller
15 September 1960 - Internal museum documents A cheque for Pablo Picasso in payment for the reproductions of Guernica and Three Musicians
New York, 22 April 1960 - Institutional correspondence A letter from Jan-Albert Goris to Nelson Rockefeller, dated 22 April 1960
New York, 25 April 1960 - Institutional correspondence Jan-Albert Goris's letter to Nelson Rockefeller, dated 25 April 1960
16 September 1960 - Internal museum documents A letter from Betsy Jones to Alfred H. Barr Jr., dated 16 September 1960