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, subject files, and printed materials. Cataloged correspondents in the collection include Georgii Adamovich, Mstislav Dobuzhinskii, and Sergei Lifar'. Manuscripts consist of typed copies of Pierre Kovalevskii's extensive diaries, which begin in Petrograd in 1918 and continue to 1973; the only missing years are 1961-1969. Subject files chiefly concern emigre organizations with which Evgraf was involved, especially the Russian Academic Group (Russkaia Akademicheskaia Gruppa) and the Russian Committee of United Organizations (Russkii Komitet Obʺedinennykh Organizatsii). Post-World War II organizational files of Petr Kovalevskii are on the Society for the Preservation of Russian Cultural Valuables (Obschestvo Okhraneniia Russkikh Kul'turnykh TSennostei), and the Committee to Commemorate the 250th Anniversary of St. Petersburg (IUbileinyi Komitet Oznamenovaniia 250-ti letiia St. Peterburga).