Correspondence files of Dr. Adolph S. Oko. The bulk of the correspondence is from Dr. Carl Gebhardt (1881-1934), with a large group also relating to a campaign to raise money for the Domus Spinozana. Present are a number of typescripts of articles and an extensive life of Spinoza. There are a few personal items, but practically all correspondence and manuscripts relate in some measure to Spinoza. Also, nine boxes of clippings relating to Spinoza, a duplicate set of cards for the Spinoza Collection used by G.K. Hall in publishing SPINOZA BIBLIOGRAPHY, the personal cardfiles of Oko and Gebhardt, and one box of Oko bookplates.

Approximately 12,000 letters to Allan Nevins from various correspondents including James Truslow Adams, Franklin Delano Roosevelt, Harry S. Truman, Willa Cather, Frances Folsom Cleveland, Van Wyck Brooks, Robert Frost, Newton D. Baker, Archibald MacLeish, John D. Rockefeller, Jr., Carl Sandburg, and Henry Wallace; notes and typescripts for Nevins' books including Emergence of Lincoln, The Ordeal of Democracy, Rockefeller, and History and Historians, with notes by editor Ray A. Billington; miscellaneous transcripts, clippings, newspapers, and photographs. Also, autograph letters and manuscripts by presidents, Civil War figures, financiers, politicians, and authors. There are also the Brand Whitlock World War I Diaries and letters to him by such people as Herbert Hoover, Gen. John J. Pershing, and others.