Included are correspondence and signed agreement statements from many writers including Elizabeth Bishop, Juan Bosch, Lysander Kemp, Miguel Angel Asturias, Mario Vargas Uosa, Pablo Neruda, Alastair Reid, Frank MacShane, Jorge Amado, Biot Weinberger, Helen Lane, Daniel Halpern and many others, plus copies of correspondence from Howes to Juan Bosch and many others.