The collection consists of manuscripts, documents, correspondence, and printed materials.

Collection consists of typescripts of Emiliia Vitol'dovna Brusinskaya's reminiscences of Siberia in the late 19th century. There are also two newspaper clippings with her publications, 1 drawing, clipping with image of ballerina, and a brief essay (typescript) written by Konstantin Bruzinskii about his grandfather, Iakub Geishtor.

The collection consists of manuscripts and memoirs dealing with the history of the 97th Livland Infantry Regiment and the Vilnius Military Academy. The memoirs concern the 6th Hussar Regiment of Major-General Iakov P. Kuliev, and Colonel Nikolai Nikolaevich Alekseev, commander of the 97th Livland Regiment. Included in the manuscript on the 97th Livland Regiment are photographs, drawings and clippings.

Collection includes 19 manuscript notebooks of poetry and prose; 42 titled articles in typescript form on religious, political, literary and autobiographical topics; several published collections of her poetry; and a folder of original drawings. Also included are three biographical articles by K. Mochulśkiĭ, M. Vishni︠a︡k and her mother Sofii︠a︡ Borisovna Pilenko, as well as her own childhood and that of her mother and grandmother during the era of Alexander I, Nicholas I, and Alexander II.

The collection includes letters of an autobiographical nature; memoirs concerning the Civil War and emigration, the largest part of them entitled "Ot Gallipoli do Brazilii"; copies of photographs and drawings from the Civil War and the Russian emigre fascist movement in the 1930's; and one issue of Russkaia Gazeta (Saõ Paulo, 1935), edited by Dakhov. Oversized materials: One folder, front fold of Russkaia Gazeta, January 26, 1935.

This collection is primarily concerned with Prof. James Renwick and his professional correspondence and papers, both as Professor of Natural Philosophy (Physics) at Columbia College and as a leading engineer. Many certificates of membership in honorary societies are included. There are letters from Washington Irving (1783-1859) to Prof. Renwick and to his mother, Jane Jeffrey Renwick, pertaining to contemporary events and Irving's own activities. The letters to Mrs. Renwick are about the travels and experiences of Irving and Renwick abroad. The collection also covers the affairs of the Prof. Renwick's grandfather, including documents concerning his land grants in New York State, and those of James Armstrong Renwick, including his valedictory address at Columbia College in 1876 and his class reunion in 1916. There are many legal documents, letters, and manuscripts of various members of the Renwick and Brevoort families; among these are Prof. Renwick's notes on his family genealogy and a memoir of Jane Jeffrey Renwick. Correspondents include Clement Clarke Moore, John A. Dix, Martin Van Buren, Secretary of State John Forsyth, and Secretary of the Navy James K. Paulding. There is one letter from Sir Edward Sabine (1788-1883), President of the Royal Society, giving his views on the American Civil War.

Correspondence, manuscripts, photographs and subject files of Witte. The correspondents include Ivan S. Aksakov, Tsar Aleksander III, Tsar Nicholas II, Konstantin P. Pobedonost︠s︡ev, I︠U︡riĭ Samarin, Lev N. Tolstoĭ and Kaiser Wilhelm II. The manuscripts, which constitute over half of the collection, consist of Witte's memoirs and of his work on the Russo-Japanese War, and include a signed typescript essay by Lev N. Tolstoĭ. The photographs depict the signing of the Portsmouth Treaty ending the Russo-Japanese War (Portsmouth, N.H.). The subject files, which are primarily typescript copies of documents, refer to such topics as the various assassination attempts on the tsars, questions of agrarian reform, relations with Germany, and the siege of Port Arthur. There is also a framed pen and ink drawing depicting an event in Witte's public career.

Correspondence, manuscripts, documents, photographs, and printed materials of Baroness Sofii︠a︡ I. Taube, writer and editor in Russia and the emigration who wrote under the name Sofii︠a︡ Anichkova. Among her books was "Zagadka Lenina." While in Russia before the 1920s, she edited such literary periodicals as "Skazki zhizni" and "Almanakh." There are single letters in the collection from Georgiĭ Ivanov, Aleksandr Kuprin, Petr Struve, and other writers. Manuscripts consist primarily of writings by Anichkova-Taube, including her memoirs of literary life in Petrograd in 1917-24: "Vechera poetov v gody bedstvii." Other manuscript items and drawings by other writers also concern these "poets' evenings." Also included are memoirs by her husband Emmanuil N. Taube about Czechoslovakia at the end of World War II. There are numerous photographs of Anichkova-Taube. Printed materials consist of her books, books inscribed to her, scattered issues of periodicals which she edited or in which she published, and newspaper clippings.