Correspondence, manuscripts and printed materials of Boris Petrovich Vysheslavtsev. There are letters from Nikolai Berdiaev, Carl Jung, Anton Kartashev, Konstantin Korovin, Jacques Maritain, Aleksei Remizov, Grigol Robakidze, Theodore Strawinsky, and Ariadna Tyrkova-Williams. The manuscripts include essays and lectures on various topics including the Orthodox church, Russian literature and culture, philosophy, and the hereafter. There are numerous diaries, primarily from the 1930's and 1940's. The printed materials include clippings, off-prints, and various journals and books.

Correspondence, manuscripts, documents, photographs, drawings, sheet-music and printed material of Teffi (Nadezhda Aleksandrovna Lokhvitskaia, married name Buchinskaia; 1872-1952. Тэффи, Надежда Александровна Лохвицкая, в замужестве Бучинская), a Russian émigré writer.

The collection contains RNK correspondence, documents, photographs, subject files, organizational records and printed materials. There are letters from Boris Bakhmeteff, Pavel and Petr Dolgorukov, Zinaida Gippius, Aleksandr Kutepov, Dmitrii Merezhovskii, Bernard Pares, Ariadna Tyrkova-Williams, George Vernadsky, and Petr Vrangel. There is a short essay by Aleksandra Tolstaia about her father. The manuscripts relate to political, historical and sociological issues. Most of the subject files relate to emigre organizations other than the RNK, while those of the RNK are classified into files of financial records, bulletins, minutes and lists of names and addresses. Among the printed materials are brochures and pamphlets, clippings, newspapers, and books.