Correspondence, manuscripts, documents, photographs, subject files and printed material of Russian émigré writer, journalist, and Kadet Party leader Ariadna Vladimirovna Tyrkova-Williams. The collection also contains material by her husband, Harold Williams, and her son, Arkadiĭ Borman.

Correspondence, manuscripts, photographs, subject files, and printed materials of Evgenii Aleksandrovich Vechorin, chiefly concerning alumni of the St. Petersburg Polytechnical Institute. The catalogued correspondence includes letters from Nikolai Andreev, Petr Savitskii, Igor ́Sikorskii, Gleb Struve, and Alfred Swann, and other prominent figures. Much of the arranged correspondence is from fellow graduates of the Institute, and concerns alumni affairs. Most of the manuscripts are likewise by fellow graduates; many are memoirs, such as those by Vechorin himself, while others concern technical subjects. Among the subject files are biographical sketches of Institute graduates and files on such individuals as Petr Savitskii, Igor ́Sikorskii, and Alfred Swann. There are several photographs taken at the Institute ca. 1900 as well as photographs of Vechorin and his colleagues after emigration. The printed materials include clippings and excerpts, miscellaneous journals, and books by Vechorin and S. P. Timoshenko.

Correspondence, manuscripts, documents, photographs, subject files, printed materials, and memorabilia of historian George Vernadsky (Georgii Vladimirovich Vernadskii; 1887-1973). Most of the collection consists of his personal and professional papers, circa 1918-1973. Sizable groups of materials also concern members of his family, especially his wife Nina (1884-1971); his father, scientist Vladimir I. Vernadskii (1863-1945); his mother Nataliia E. Vernadskaia (1860-1943); and his sister Nina V. Toll' (1898-circa 1976).

The papers comprise correspondence, writings, memoirs, personal documents, research notes, printed materials, photographs of Iurii Shevel'ov, prominent scholar, Slavic linguist, philologist, literary historian, and literary critic, longtime professor of Slavic philology at Columbia University.

The papers consist of correspondence, manuscripts, documents, subject files, photographs, and printed materials. Correspondence in the collection includes 1 item from Ivan Bunin, 2 from Vladimir Davydov, and many from G. A. Alekseev. Mendeleev's extensive memoirs, "Svet i teni v moei zhizni," discuss his childhood and youth, government service, World War I, the 1917 Revolution and the Civil War, and life in the emigration up to 1933. Subject files in this collection concern the Prague Russian Archive, the Union of the Russian Nobility, the Russian Imperial family in the emigration, and other topics. Printed materials include an almost complete set of the weekly "Parizhskii Vestnik" (1942-1944).

Correspondence, manuscripts, documents, and photographs of Bakunina. Most of the collection consists of letters from the period 1945-1974 by Bakunina's friends and relatives. Cataloged correspondence is from George Vernadsky (Bakunina's cousin), Vadim Rudnev, Sofii︠a︡ Panina, Petr Bit︠s︡illi, and Nikolaĭ Astrov; some of the letters are addressed to Bakunina's husband, Mikhail A. (d. 1962). Manuscripts include brief memoirs by Bakunina and her husband.

Correspondence, manuscripts, photographs, subject files and printed material of Vladimir M. Zenzinov (1880-1953), writer, member of the Socialist Revolutionary Party and émigré activist first in France and, after 1940, in the United States.