- Rolland, Romain, 1866-1944 -- Correspondence
- Keynes, John Maynard, 1883-1946 -- Correspondence
- Stevens, Wallace, 1879-1955 -- Correspondence
- Zola, Émile, 1840-1902 -- Correspondence
- Chambers, Whittaker -- Correspondence
- Dickinson, Emily, 1830-1886 -- Correspondence -- Fiction
- Moulton, Charles H., Charles Herbert, 1843-1866. -- Correspondence
- Monet, Claude, 1840-1926 -- Correspondence
- Pückler-Muskau, Hermann, Fürst von, 1785-1871 -- Correspondence
- Mencken, H. L., Henry Louis, 1880-1956 -- Correspondence
- Collins, Michael, 1890-1922 -- Correspondence
- Scholl, Hans, 1918-1943 -- Correspondence
- Wolf, Hugo, 1860-1903 -- Correspondence
- Alexandra, Empress, consort of Nicholas II, Emperor of Russia, 1872-1918 -- Correspondence
- Taylor, Horace Dickinson, 1821-1890 -- Correspondence
- Jackson, Helen Hunt, 1830-1885 -- Correspondence
- Verelst, Harman -- Correspondence
- Lowell, Amy, 1874-1925 -- Correspondence
- Lewis, Nelly Custis, 1779-1852 -- Correspondence
- Gerhart, Margaret McDermett -- Correspondence -- Archives -- Catalogs
- Tenure family -- Correspondence
- Sévigné, Marie de Rabutin-Chantal, marquise de, 1626-1696 -- Correspondence
- Mozart, Leopold, 1719-1787 -- Correspondence
- Jurgensen, Geneviève, 1946- -- Correspondence
- Pasternak, Boris Leonidovich, 1890-1960 -- Correspondence
- House, Edward Mandell, 1858-1938 -- Correspondence
- Goodman, Philip, 1885-1940 -- Correspondence
- Stotler, Ilka Marie, 1884-1982 -- Correspondence
- White, Stanford, 1853-1906. -- Correspondence
- Jackson, George, 1941-1971 -- Correspondence
- Torres, Olga Beatriz -- Correspondence
- Brewster, Charles Harvey, 1833-1893 -- Correspondence
- Twain, Mark, 1835-1910 -- Correspondence
- Ingersoll, Robert Green, 1833-1899 -- Correspondence
- Stirman, Erasmus -- Correspondence
- Legge, Walter, 1906-1979 -- Correspondence
- Kopp, Kristine Melva, 1951- -- Correspondence
- Huxley, Aldous, 1894-1963 -- Correspondence
- Stevenson, Robert Louis, 1850-1894 -- Correspondence
- Williams, William Carlos, 1883-1963 -- Correspondence
- O'Connor, Flannery -- Correspondence
- Franks, Abigail, 1696-1756 -- Correspondence
- Ross, Lawrence Sullivan, 1838-1898 -- Correspondence
- Hess, Rudolf, 1894-1987 -- Correspondence
- Davis, W. Wilkins, William Wilkins, 1842-1866 -- Correspondence
- Siqueiros, David Alfaro -- Correspondence
- Trueheart, Charles William -- Correspondence
- Rappard, Anthon van, 1858-1892 -- Correspondence
- Shaw, Bernard, 1856-1950 -- Correspondence
- Whistler, James McNeill, 1834-1903 -- Correspondence