Sidney Janis, director of the Organising Committee of the exhibition Picasso's Guernica, for the Spanish Refugee Relief Campaign, provides Charles Goodspeed, director of the Arts Club of Chicago, with information on the cost and details of the exhibition.

Reference in the source Archive:
Spanish Refugee Relief Association Record, 1935-1957, Part B: General Office Files Box 25: Picasso Tour
Sidney Janis's letter to Charles Goodspeed, dated 15 May 1939