The collection consists of correspondence, manuscripts of her diary, published under the title "Dnevnik, 1899-1906" (New York, 1951), documents (primarily personal), photographs chiefly taken in Manchuria at the turn of the century, and printed materials, especially clippings. The clippings include articles by Rossolimo, articles about her and members of her family, and about subjects of interest to her. The correspondence spans the years 1845-1952 but concentrates around 1951, the year of the publication of "Dnevnik, 1899-1906." Among the correspondents are Georgiĭ V. Adamovich, Vera N. Bunina, Anton and Ksenii︠a︡ Denikin, Georgiĭ P. Fedotov, Vasiliĭ A. Maklakov, among others. The diary raises issues of feminism and describes in detail the life of Russians in Manchuria, especially during the Russo-Japanese War.

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.

Correspondence, manuscripts, photographs, documents, subject files and printed materials of Sergei Grigor'evich Svatikov (1878/1880?-1942), Russian lawyer, historian, publicist, and public figure. The correspondence includes letters from Mark Aldanov, Vladimir Burtsev, Ivan Efremov, Georgii Grebenshchikov, Grigorii Lozinskii, Sergei Mel'gunov, Nikolai Rubakin, George Vernadsky and Mark Vishniak. There is a notebook that belonged to Vera Zasulich. Among the photographs are pictures of Prince Adam Jerzy Czartoryski, Sergei Mel'gunov, and Aleksander Wielopolski. The manuscripts include several by Svatikov as well as many notes, lists and bibliographical compendia relating to his oeuvre. The subject files cover such areas as the Russian Reading Hall in Heidelberg, the Turgenev Library in Paris, and the Russkii akademicheskii soiuz (Groupe academique russe), also in Paris. The printed materials include clippings, materials from the Institute d'ʹetudes slaves, and a number of books by Svatikov.