Correspondence, manuscripts, subject files, and printed materials of Afrikan P. Bogaevskiĭ. The bulk of the collection concerns emigre Cossacks in Europe, but there are also materials from the Civil War. There are letters from such White Generals as Petr Krasnov, Aleksandr Kutepov, and Petr Wrangel, and many letters from various persons to Bogaevskiĭ's widow after his death. Manuscripts include Bogaevskiĭ's addresses ("obrashchenii︠a︡") to the emigre Cossacks and his memoirs about the Cuban campaign of 1918. Subject files concern the Civil War, emigre Cossacks and related matters. Printed materials touch on Bogaevskiĭ's death and funeral.

Papers of General Alekseĭ Petrovich Arkhangelśkiĭ, consisting of correspondence, manuscripts, financial records, membership lists, photographs and miscellaneous printed materials. Most of the documents in the collection pertain to the activities of ROVS and its divisions and member organizations, especially its Fifth Section (Belgium), in the late 1920s and the 1930s and 1940s. The correspondence (1924-1954) is primarily between Arkhangelśkiĭ and other military officers, including A.I. Denikin, P.P.N. Krasnov, E.K. Miller, P.N. Wrangel, V.K. Vitkovskiĭ, I.A. Kholḿsen, P.A. Kusonskiĭ, P.K. Kondzerovskiĭ, E.S. Imnadze, etc. The manuscripts encompass official orders and pronouncements, information bulletins, speeches, announcements, manifestos, emigre military course instruction manuals and reports. Many of the latter deal with Soviet internal affairs and foreign policy. The collection also includes photographs, chiefly of White Army personnel in Yugoslavia in the early 1920s, miscellaneous printed materials, ROVS financial records for the period 1924-1926, various membership lists as well as 24 separate subject files, including materials on the founding of ROVS Fifth Section, ROVS activities in North America, Australia, and the Far East, the ROVS Court of Honor, the Russian Defense Corps (Russkiĭ Okhranyĭ Korpus) in Yugoslavia in World War II, the "Vnutrenni︠a︡i︠a︡ Linii︠a︡" and others.