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.

The papers consist of correspondence, manuscripts, documents, and printed materials. Correspondence includes 3 letters from Mikhaĭl Karpovich, and letters from Khmelńit︠s︡kai︠a︡'s son Sergeĭ, a writer in the Soviet Union. Among the manuscripts is Khmelńit︠s︡kai︠a︡'s autobiography, which discusses her childhood in Odessa and her education; and her translation of the letters of William Frey, a Russian immigrant in Kansas in the 1870s.

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 collection consists of correspondence, manuscripts, memoirs, notes, lectures, subject files, documents, diplomas and awards, and printed materials. Cataloged correspondents include Dmytro Chyzhevsʹkyĭ and Nikolaĭ Losskiĭ. Most of the correspondence concerns scientific topics and Novikov's publications in emigration. Manuscripts are primarily by Novikov on biological topics. There are also manuscripts by various persons, including Nikolaĭ Losskiĭ and Mikhail Karpovich (1956), and "Dvukhsotletie Moskovskogo Universiteta," edited by Novikov. Memoirs include a manuscript of Novikov's "Ot Moskvy do Nʹi︠u︡ Ĭorka," (published in 1952). Lectures are on biological topics. Subject files deal in part with the celebration in the West of the Bicentennial of Moscow University, Radio Liberty broadcasts and UNRRA University in Munich. Printed materials include copies of publications by Novikov.