Correspondence, manuscript, document, autograph and photographs of and by Irish, English and American poets. The letters are by Samuel Austin Allibone, John Erskine, Padraic Colum, Lord Dunsany, Frances Anne Kemble, Henry Wadsworth Longfellow, Daniel O'Connell, Theodore Parker, and John Greenleaf Whittier. There is an a.ms.s. poem by John Quincy Adams; manuscripts by Ralph Waldo Emerson, Padraic Colum, and Daniel 0'Connell, as well as G. M. Fuller's autograph and photographs of Dunsany, Longfellow and James Russell Lowell. There is also a custom receipt signed by Nathaniel Hawthorne, an uncataloged portrait of Longfellow, and a charcoal portrait of G. K. Chesterton by Ivan Opffer

Correspondence, manuscripts, documents, photographs, memorabilia, scrapbooks, and printed material. Among his correspondents represented in the collection by at least 75 items are: William Archer, Hobart C. Chatfield-Taylor, Augustin Daly, Austin Dobson, Hamlin Garland, Bronson Howard, William Dean Howells, Henry Arthur Jones, Henry Cabot Lodge and Thomas Raynesford Lounsbury. There are bound volumes of letters from Henry C. Bunner, Andrew Lang, Rudyard Kipling, Theodore Roosevelt, miscellaneous letters to Matthews, and Matthews' editorial correspondence with the North American Review. There are three boxes of manuscripts, including poems by 21 authors; essays on drama; and plays by Henry Arthur Jones, Don Marquis, and Matthews; bound volumes of manuscripts of Matthews' plays and his book, "Development for the Drama." Also included are 17 boxes of his manuscript notes for his many lectures, articles, and books; and memorabilia, primarily from the theatre and from his life at Columbia. Material on the Dunlap Society, which was devoted to printing works relating to the theater, of which Matthews was co-founder with Laurence Hutton, includes documents and correspondence, much of which is between then secretary Evert J. Wendell and members on meetings and other Society business around 1914. In addition, there are notes and correspondence of Herbert Kleinfield relating to his research on Matthews.

This collection includes nine letters of Ralph Waldo Emerson as well as letters of Louis Agassiz, Amos Bronson Alcott, Oliver Wendell Holmes, Sr., Henry Wadsworth Longfellow, James Russell Lowell, John Lothrop Motley, Charles Sumner, and John Greenleaf Whittier. In addition, there are two incomplete manuscripts by Emerson and one document from the Liverpool Custom-house signed by Nathaniel Hawthorne as Consul for the United States. The collection also includes the corrected typescript, index, and page and galley proofs for Thomas Franklin Currier, A BIBLIOGRAPHY OF OLIVER WENDELL HOLMES (New York, 1953) which was edited by Professor Tilton. Also, some early correspondence and photographs of the Tilton family and friends. There are letters from the actors Annie Louise Ames, Richard J. Dillon, and Hans L. Meery to Tilton's grandfather, Bernard Paul Verne, as well as photographs, tintypes, and daguerreotypes of the Verne family and friends.

Correspondence, articles, photographs, clippings, and other ephemera about the career and writings of Robert William Chambers (1865-1933), collected by Clark. The collection includes six letters from Chambers, one letter from John Kendrick Bangs to Chambers, and 14 scrapbooks which also include printed materials about Richard Harding Davis (1864-1916) and George Barr McCutcheon (1866-1928). There are also some Clark family photographs and memorabilia.

The collection consists of the editorial and production archives of Random House, Inc. from its founding in 1925 to the 1990s. The correspondence and editorial files include many of the prominent novelists and short story writers from 20th-century American and European literature: Saul Bellow; Erskine Caldwell; Truman Capote; William Faulkner; Sinclair Lewis; André Malraux; Gertrude Stein and Thornton Wilder. Among the poets there are files for W. H. Auden; Allen Ginsberg; Robinson Jeffers; Robert Lowell; and Stephen Spender. In the area of theater there are files for Maxwell Anderson; Moss Hart; Lillian Hellman; Eugene O'Neill; and Tennessee Williams. Random House transacted business with many fine presses and noted typographers and the archives contain files for Nonesuch Press, Grabhorn Press and Golden Cockerel Press, as wll as for Bruce Rogers, Valenti Angelo, and Edwin, Jane, and Robert Grabhorn.