(Seroff, Victor Collection.) | Letters to Victor Seroff: ALS, 1 p., Aug. 21, no year. ALS, 1 p., n.d. (postmarked Aug. 1948); in Russian, with envelope. ALS, 18 p., n.d. (ca. 1940s). | (Hirschmann, Ira collection.) | TLS to Ira Hirschmann, 1 p., Dec. 11, 1963; includes CTL response from Hirschmann, 1 p., Dec. 16, 1963. | (Goodman, George J. W. Collection.) | Letter. | (Drought, James collection.) | Letter. | (Levin, Meyer Collection.) | Letters. | (East, P. D. collection.) | Letters. | (Shyre, Paul Collection.) | Letters. | (Brooke, Edward W. III Collection.) | Photograph of Sachar with Edward W. Brooke III. | (Shepard, Sam Collection.) | Letter. | (Groueff, Stephane Collection.) | Transcript of tape recorded interview. | |