The collection includes correspondence from Konstantin Balḿont, Nikolaĭ Evreĭnov, Zinaida Gippius, Georgiĭ Grebenshchikov, Vasiliĭ Maklakov, Sergeĭ Potresov and Nadezhda Teffi. There is one letter each from Boris Bakhmeteff, Vera Bunina, Aleksandr Grechaninov, Aleksandr Kuprin and Alekseĭ Tolstoĭ. The manuscripts include poems and a play scenario by Nadezhda Teffi as well as Roshchina-Insarova's autobiographical essays and article about Sergeĭ Lifar.́ In addition, there are three scrapbooks containing clippings and programs of Roshchina-Insarova's performances, and approximately 40 photographs of her.

The papers consist primarily of the Kosatkin-Rostovskiĭ's memoirs. His manuscript memoirs (150 p.) discuss his life up to 1906. Her typescript memoirs (440 p.) discuss her childhood, career as an actress in St. Petersburg, 1917-1918 in Petrograd, and the emigration in France. Also included are his diary for June-July 1940; a few letters written to him; clippings of his newspaper articles (many signed with the pseudonym "Antar"); and a book with his poetry and with essays dedicated to him; "Krestnym putem k voskresenii︠u︡" (Paris, 1948).

The collection consists of correspondence, manuscripts, documents, a photograph, and printed material, primarily from the period 1941-1957. Included are letters from Ivan Bunin, Marc Chagall, Mikhail Karpovich, Vasiliĭ Maklakov, W. Somerset Maugham, Vladimir Nabokov, Ili︠́a︡ Repin, Edmund Wilson, Boris Zaĭt︠s︡ev and many others. Manuscripts of his works include "Istoki""Nachalo kont︠s︡a""Zhivi, kak khochesh"́, and "The Escape" (English translation of "Begstvo"), such shorter tales as "Noch ́v terminale""Povest ́o smerti", and "Ulḿskai︠a︡ noch"́, as well as numerous articles, book reviews and essays. There are financial records for "Novyĭ Zhurnal", which Aldanov helped found, and the clippings are mainly articles about Aldanov. There is one late photograph of Aldanov.

Correspondence, manuscripts, diaries, documents, subject files and printed materials of Vorobév. Following the 1917 Revolution, Vorobév emigrated to Constantinople, Belgrade, and eventually to Nice. The correspondence dates from 1920 to 1950. The manuscripts primarily concern ethnography, agriculture and horticulture in the Black Sea region, and approximately half the manuscripts are by Vorobév himself. In addition, there are several diaries (dating from the 1940's) in which Vorobév recorded his professional activities. The documents include a number of contracts and receipts. The subject files cover a variety of topics including antisemitism, flora in the Kuban River region, notes on the "dance of death" and the Obshchestvo okhranenii︠a︡ russkikh kult́urnykh t︠s︡ennosteĭ (the Society for the Preservation of Russian Cultural Antiquity) in Paris, of which Vorobév was secretary. Among the printed materials are articles, clippings and maps.

The papers consist of correspondence, autograph books, manuscripts, photographs and printed materials. There are letters from Mark Aldanov, Ivan Bunin, Antonin Ladinskiĭ, Vasiliĭ Nemirovich-Danchenko, Alekseĭ Remizov, Ivan Shmelev, Nadezhda Teffi and Boris Zaĭt︠s︡ev, as well as one letter each from Konstantin Balʹmont, Aleksandr Grechaninov, Vladislav Khodasevich, Aleksandr Kuprin, and Vladimir Nabokov. The autograph albums (owned by Marii︠a︡ A. Berman and Potresov) cover the years 1906-1907 and 1913-1948, respectively, and have entries by Balʹmont, Ivan Bilibin, Bunin, Nabokov, and Maksimili︠a︡n Voloshin, among others. The manuscripts include a poem by Mother Marii︠a︡ and articles, diaries, and a play by Potresov. The printed materials primarily consist of clippings of Potresov's articles in newspapers and journals. In addition to the loose clippings, there are six scrapbooks with clippings of Potresov's articles pasted in.

The collection contains Simonovich's correspondence, manuscripts, doucments, subject files, and printed materials. There are letters to Simonovich from a friend who had settled in Yugoslavia, A. S. Poplavskiĭ, and Belgian postcards from before World War I. Manuscripts deal with Simonovich's experiences in the Imperial army on the Caucasian front and in the White army under general Slashchev. There are also essays devoted to the Russian emigre colonies in Belgium and in France. The subject files concern the Belgian section of the Gallipolian Society (Obʺshchestvo Gallipolit︠s︡ev) and Russian emigre events in Belgium. The printed materials include chiefly miscellaneous journals and clippings, some with articles by Simonovich.