Blanche Mahler, from the Campaign Department of the Spanish Refugee Relief Campaign, sends Grace L. McCann Morley, director of the San Francisco Museum of Art, an invoice for the exhibition made out to the Medical Bureau and North American Committee to Aid Spanish Democracy.
Reference in the source Archive:
Spanish Refugee Relief Association Record, 1935-1957, Part B: General Office Files Box 25: Picasso Tour
Blanche Mahler's letter to Grace L. McCann Morley