Providence, Rhode Island, 12 May 1939 - Institutional correspondence Alexander Dorner's letter to Sidney Janis
New York, April 1967 - Petition A request from Angry Arts to support the withdrawal of Guernica from the Museum of Modern Art, New York
<em>St. Louis Post-Dispatch</em>, Saint-Louis, November 13, 1969, front page and inside pages - Article “Lieutenant Accused of Murdering 109 Civilians”