New York, 6 July 1939 - Institutional correspondence Alfred H. Barr Jr.'s letter to Pablo Picasso, dated 6 July 1939
1939 - Institutional correspondence Correspondence between the Spanish Refugee Relief Campaign and Alfred H. Barr Jr.
New York, 27 January 1939 - Institutional correspondence Alfred H. Barr Jr.'s letter to Meric Callery
New York, 12 September 1939 - Institutional correspondence Alfred H. Barr Jr.'s letter to Pablo Picasso, dated 12 September 1939
New York, 15 November 1939 - Institutional correspondence Alfred H. Barr Jr.'s telegram to Pablo Picasso, dated 15 November 1939
New York, 15 December 1939 - Institutional correspondence Alfred H. Barr Jr.'s telegram to Pablo Picasso, dated 15 December 1939
New York, 5 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Alfred H. Barr Jr., dated 5 June 1939
Paris, 6 September 1939 - Institutional correspondence Christian Zervos's letter to Alfred H. Barr Jr., dated 6 September 1939
Paris, 27 December 1939 - Institutional correspondence Christian Zervos's letter to Alfred H. Barr Jr., dated 27 December 1939
Paris, 26 October 1939 - Institutional correspondence Christian Zervos's letter to Alfred H. Barr Jr., dated 26 October 1939
New York, 20 October 1939 - Institutional correspondence Anne Beidberg's letter to Alfred H. Barr Jr.
New York, 14 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Alfred H. Barr Jr., dated 14 June 1939
Cambridge, Massachusetts. 29 January 1940 - Institutional correspondence A letter from Paul Sachs to Alfred H. Barr Jr.
New York, 14 August 1942 - Internal museum documents Elodie Courter Osborn's letter to Alfred H. Barr Jr.
New York, 25 September 1944 - Institutional correspondence Alfred H. Barr Jr.'s postcard to Pablo Picasso
New York, 31 October 1944 - Institutional correspondence Alfred H. Barr Jr.'s letter to Pablo Picasso