Abstract Correspondence relating to research and publication for Professor John E. Hart's essay “Albert Halper’s World of the Thirties” (Twentieth Century Literature, v. 9:4, January 1964), and his book, Albert Halper (1978), part of the Twayne United States Authors Series. The collection contains both original correspondence and other material from Halper, as well as the correspondence Hart conducted with a number of individuals and institutions...