The collection includes correspondence, manuscripts by Melńikov and others, documents, photographs, subject files and printed materials. There is a cataloged letter from George Kennan. Correspondence consists primarily of letters from various members of the Don Cossacks in exile, including General A.P. Bogaevskiĭ, Melńikov, and General V.V. Naumenko. Manuscripts include Melńikov's typescript memoirs "Pochemu 'belye' na i︠u︡ge ne pobedili krasnykh?"(230 p.). Reports, by members of the Don government in exile, are on the economy of Southeast Russia. Photographs and documents concern the Don Cossacks. Subject files primarily cover the Don Cossacks during the Civil War in exile. They include several signed letters and memos by General Denikin dated 1920. The financial records of the Don government in exile cover the years 1921-1926. The bulk of the printed materials consists of issues No. 51-272 (1930-1939) of the journal "Volńoe kazachestvo," published in Prague and later in Paris. Among the printed materials there is also a pamphlet dated 1919 and entitled "Vremennoe polozhenie o grazhdanskom upravlenii v mestnosti︠a︡kh, nakhodi︠a︡schikhsi︠a︡ pod verkhovnym upravleniem glavnokomandui︠u︡schego vooruzhennymi silami na i︠u︡ge Rossii." The majority of the material in the collection concerns the Don Cossacks in emigration.

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.

Papers consist of correspondence, manuscripts, and printed materials. Correspondents include Nadezhda Teffi and Pierre Fresnay. There are manuscripts of stories, novels, plays, scenarios, and memoirs by Oks. Oks' memoirs touch on his legal career in Russia and meetings with Sarah Bernhardt and Fedor Shali︠a︡pin; the memoirs of his wife, Lidii︠a︡ Borshch, concern the period of the Revolution and Civil War in Russia and meetings with Maksim Gorḱiĭ in Italy in the 1920s. Among the printed materials are the first issue of the emigre literary journal "Chisla," theatrical newspapers from Petrograd in 1914-16, and issues of French periodicals with Oks' memoirs about his legal career in Russia, including contacts with Lenin and Trotsky.