Acceptance letters from Alfred H. Barr Jr., Aleksina Matisse, Georgia O'Keefe and Sidney Janis to Caspar Whitney

Alfred H. Barr Jr., director of the Museum of Modern Art, New York, Aleksina Matisse, Georgia O'Keefe and Sidney Janis, director of the Organising Committee of the exhibition Picasso's Guernica, for the Spanish Refugee Relief Campaign, all accept the invitation to a private visit to the exhibition and indicate the amount they are donating to the Spanish Refugee Relief Campaign.