The O. J. Tanner collection contains the following items: a scrapbook with various portraits of historical figures, a diary with notes on wills, an autograph scrapbook (including an autograph from President Ulysses Grant), a photostat copy of a letter by George Washington, an 1822 watercolor sketchbook, two photographs, a catalog and receipt from the Coral Gables Godspeed Bookshop, a 1743 pamphlet titled "Relation de la victorie Remporteé sur les Imperiaux, par les troupes du Roy, & celles du Roy de Serdaigne, dans la Bataille donneé prés de Guastalla, le 19 du mois dernier," and other pamphlets, clippings, programs, and prints.

The A. W. Kopp autograph collection contains three books of autographs and various loose autographs. One book is dated 1909 to 1910 and contains an autograph of Gustav Mahler and Sergei Rachmaninoff (with an accompanying musical quote), one is dated 1914 to 1917 and contains an autograph of U.S. President Theodore Roosevelt, and one is dated 1917 to 1921 and contains an autograph of Harry Houdini, Edgar Lee Hay, and Marjory Stoneman Douglas. Among the loose autographs, there are ones of Daniel Webster and Oliver Wendell Holmes. Also included are a book of receipts from New York dated 1784 to 1786, a book of poetry from residents of Danzig dated 1833 to 1853.