The papers include correspondence, manuscripts, documents, photographs, and printed materials. Among the correspondents are Boris Bakhmeteff, Pavel Mili︠u︡kov, Ivan Shmelev, and Petr Wrangel. There is a manuscript of General Denikin's entitled, "Ocherki russkoĭ smuty," and of some of his other writings. Subject files deal with the Civil War and the emigration. Extensive printed materials include General Denikin's library and a collection of chiefly Russian emigre periodicals. Boxes 51, 52, 56, 61 have been integrated in the SEEC periodical collection.

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.