Hollywood, 20 July 1939 - Institutional correspondence Marcelene Peterson's letter to Evelyn Ahrend, dated 20 July 1939
Hollywood, 2 September 1939 - Institutional correspondence Marcelene Peterson's letter to Evelyn Ahrend, dated 2 September 1939
Hollywood, 10 November 1939 - Institutional correspondence Marcelene Peterson's letter to Herman F. Reissig
Los Angeles, 1939 - Invitation Invitation to the opening of the exhibition Picasso's Masterpiece. Guernica and 63 Related Paintings and Drawings at the Stendahl Art Galleries