1943 - Internal museum documents Itinerary of the touring exhibition Picasso: Forty Years of His Art and its adaptations from 1940 to 1943
Farmington, Connecticut, 20 September 1946 - Personal correspondence James Thrall Soby's letter to William Lieberman
26 July 1943 - Press release and communication Picasso's huge mural of the destruction of Guernica by bombing shown at the Museum of Modern Art, New York