This collection consists of correspondence from Harry Thornton Moore to Caresse Crosby from 1945 to 1969. The correspondence includes letters about Moore's role as the Crosby Library executor in which Crosby makes suggestions about where to place the collection. The correspondence also documents Crosby's thoughts about travel, literature, and Moore's biographical projects on D. H. Lawrence. As assistant editor of Crosby's Portfolio: An Intercontinental Quarterly, Moore knew Kay Boyle, and the correspondence includes a letter from Boyle to Moore concerning Boyle's appointment as a lecturer on short stories at the University of Delaware. The series also includes all of the prospectuses for Portfolio: An Intercontinental Quarterly, published by Crosby at the Black Sun Press from 1945-1947.