22 July 1992 - Newspapers Artworks by Le Corbusier and Dalí about Spanish Civil War will accompany Guernica at CARS
Flushing, New York, 23 May 1939 - Institutional correspondence Simon Guggenheim's and Dana C. Backus's form letter to ask for donations
New York, 25 May 1939 - Institutional correspondence Sidney Janis's letter to the Motion Pictures Artists' Committee
New York, 10 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Marcelene Peterson, dated 10 June 1939
Toronto, 21 July 1939 - Institutional correspondence Phyllis Lane's letter to Evelyn Ahrend, dated 21 July 1939
New York, 4 August 1939 - Institutional correspondence Sidney Janis's telegram to the FIne Arts Gallery of San Diego
3 April 1939 - Minutes Minutes from a meeting of the Executive Committee of the Spanish Intellectual Aid, dated 3 April 1939
1945 - Internal museum documents Alfred H. Barr Jr.'s notes for the screenplay of the film Guernica by Robert Flaherty
26 June 1992 - Newspapers Solé Tura doesn't back down over public opinion and Guernica is due to leave the Casón del Buen Retiro
7 July 1992 - Newspapers Even Calvo Serraller accuses Solé Turá: the transfer is a serious imprudence and a political manipulation to conceal a bad management of the Reina Sofía
15 July 1992 - Newspapers Scores of police officers and security forces will intervene in the transfer of «Guernica»
14 June 1997 - Newspapers A proposal by the PNV (Basque Nationalist Party) in Congress reopens the controversy over the transfer of «Guernica»