Petr Pilśkiĭ's manuscripts include articles which are primarily essays on individual Russian writers of the late 19th and early 20th century, such as Belyĭ, Belinskiĭ, Bunin, Chekhov, Saltykov-Shchedrin etc. These manuscripts, most likely prepared initially to serve as introductions to publications of single or collected works, are typed carbons, apparently copied considerably later. The manuscripts of E.S. Pilśkai︠a︡ are chiefly memoirs, including recollections about her studies at the Imperial Theater School (Imperatorskoe Teatralńoe Uchilishche) in St. Petersburg, theater life in Russia, her stay in Odessa and Kiev during 1918-1919 and about the Soviet takeover of Latvia in 1940. Included in the collection are several articles about Pilśkiĭ by his wife and by A. Kuprin and A. Amfiteatrov.

Most of the letters, which comprise the bulk of the collection, were written to Chekver in the late 1940s and 1950s by such emigre writers as David Knut, Aleksei Remizov, and Iurii Terapiano. Also included are verses by some of Chekver's correspondents (such as Knut, Igorʹ Chinov, and Vasilii Sumbatov), photographs of Knut, and books of verses by Chekver and Iurii Trubetskoi.

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.

Correspondence, manuscripts, documents, photographs, organizational records, and accounts of the Soi︠u︡z Russkikh Pisateleĭ i Zhurnalistov v Parizhe (Union of Russian Writers and Journalists in Paris). The correspondence (ca. 1920-1951) primarily deals with organizational subsidies and events, and includes letters from such writers as Mark Aldanov, Ivan Bunin, Mikhail Fedorov, Mikhail Osorgin, Alekseĭ Remizov, Nadezhda Teffi, Marina T︠S︡vetaeva and Boris Zaĭt︠s︡ev (the president of the organization) among others. There are manuscripts by Vladimir Zeeler and Sofii︠a︡ Anichkova-Taube as well as photographs of several members of the organization. The financial records include receipts for subsidies and general financial statements covering the 1920-1950 period. The organizational records concern Union balls, publications, and other activities. There are also folders of miscellaneous notes and clippings.

Vladimir Feofilovich Zeeler (Владимир Феофилович Зеелер; 1874-1954) was a Russian lawyer, state official and political activist; the Interior Minister in the South Russian Government; a pivotal figure of the Russian emigration; and a journalist, editor, memoirist and philanthropist. The collection includes correspondence, manuscripts, and photographs of many prominent cultural figures in the Russian emigration. A sizable part of the collection also concerns the painter Il'ia Repin (1844-1930).