Mexico, 21 December 1939 - Personal correspondence Juan Larrea's letter to Pablo Picasso, dated 21 December 1939
Flushing, New York, 23 May 1939 - Institutional correspondence Simon Guggenheim's and Dana C. Backus's form letter to ask for donations
Cambridge, Massachusetts, 20 November 1939 - Personal correspondence Josep Lluís Sert's letter to Pablo Picasso, dated 20 November 1939
New York, 15 December 1939 - Institutional correspondence Alfred H. Barr Jr.'s telegram to Pablo Picasso, dated 15 December 1939
23 November 1939 - Personal correspondence Francisco de Troya's letter to Pablo Picasso, dated 23 November 1939
New York, 6 July 1939 - Institutional correspondence Alfred H. Barr Jr.'s letter to Pablo Picasso, dated 6 July 1939
Chicago, 12 October 1939 - Institutional correspondence Alice Roullier's letter to Evelyn Ahrend, dated 12 October 1939
1939 - Institutional correspondence Correspondence between the Spanish Refugee Relief Campaign and Alfred H. Barr Jr.
2 May 1939 - Internal institutional documents A draft text for the invitation to the exhibition Picasso's Guernica at the Valentine Gallery, New York
1939 - Institutional correspondence Acceptance letters from Alfred H. Barr Jr., Aleksina Matisse, Georgia O'Keefe and Sidney Janis to Caspar Whitney
November 1939 - Magazines Picasso in Retrospect: 1939–1900. The Comprehensive Exhibition in New York and Chicago
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
Mexico, 4 October 1939 - Personal correspondence Juan Larrea's letter to Pablo Picasso, dated 4 October 1939
New York, 14 November 1939 - Institutional correspondence Nelson Rockefeller's telegram to Pablo Picasso
New York, 15 November 1939 - Institutional correspondence Alfred H. Barr Jr.'s telegram to Pablo Picasso, dated 15 November 1939
6 November 1939 - Press release and communication Final paintings arrive from Europe in time for big Picasso exhibition at Museum of Modern Art
New York, 1937 - Photograph View of the work Guernica shown at the exhibition Picasso: Forty Years of His Artat the Museum of Modern Art, New York
3 May 1939 - Invoices Shipping invoice to the Valentine Gallery for the delivery of paintings from Normandy to New York
New York, 1939 - Exhibition catalogue Catalogue of the exhibition organised by the American Artists' Congress at the Valentine Gallery, for the benefit of Spanish refugees. Signed by Juan Negrín and Julio Álvarez del Vayo
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
Chicago, 12 October 1939 - Institutional correspondence Isabel Jarvis's letter to the Museum of Modern Art, New York
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