The collection consists of correspondence, a diary, manuscripts, memoirs, notes, a subject file, photographs and printed materials. Correspondence is primarilly addressed to Orlov and his wife. Manuscripts and memoirs, chiefly by Orlov, deal with Civil War topics. Orlov's diary covers the years 1918-1921. Notes are on World War II, and the subject file concerns the death of Orlov. Photographs include a group picture of a Gallipoli Society meeting in Prague. Printed materials include clippings, mimeographed materials, pamphlets and copies of periodicals, all relating to the Gallipoli Society.

Correspondence, manuscripts, photographs, subject files and printed materials. The correspondence includes letters from Michael Florinsky, Mikhail Karpovich, Bernard Pares, Geroid Robinson and George Vernadsky as well as one each from Lidii︠a︡ Lopukhova, Lewis Mumford and George Orwell. There is abundant correspondence relating to the Cunard Whitestar Line, notably from Anthony Cunard. The manuscripts include drafts of several of Fedotoff-White's books as well as copious notes and book reviews. There are subject files relating to his curriculum vitae, financial affairs, and his university studies. Among the printed materials are books (including several of his own), clippings, pamphlets, and brochures.

The collection consists of correspondence, manuscripts, memoranda, and printed materials. Correspondence, mostly from the Soi︠u︡z nat︠s︡ionalńogo osvobozhdenii︠a︡ (Union for National Liberation) and the Sovet obʺedinennoĭ russkoĭ molodezhi (Council of United Russian Youth), concerns the establishment of a united monarchist movement in the 1920s. Manuscripts and memoranda describe the state of the monarchist movement in the emigration. Printed materials consist of monarchist pamphlets and circulars, and also printed directives dated 1919 from the commander of the Prishibskai︠a︡ and Graderfelśkai︠a︡ volosts.

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 consists of correspondence, manuscripts by Messner and others, memoirs by Messner, photographs and printed materials. Manuscripts by Messner include a typescript (275 p.) entitled "Nekotorye prichiny porazhenii︠a︡ Germanii v voĭnu 1939-1945 g.g." Messner's memoirs (3293 p. and 350 p.) cover the years 1914-1973. Included among them are clippings, photographs, mimeographed materials and pamphlets. The majority of his memoirs concern World War I and the Civil War. Photographs are mostly copies. Printed materials consist mostly of clippings of articles by Messner in South American monarchist periodicals.

The papers consist of correspondence, manuscripts, photographs, a subject file, and printed materials. The correspondence includes a letter from Randall Thomas Davidson, Archbishop of Canterbury, and one from Nikolaĭ Roerich. There is an essay about Metropolitan Platon by I︠O︡ann Chepelev, and a number of photographs depicting church officials and White army leaders. There is a subject file concerning Platon's meeting in 1919 with President Wilson. The collection also contains articles and clippings by and about the Metropolitan, and there are several books and pamphlets as well. The materials were collected by his daughter and grandson; many of the items are photocopies.

The collection consists of correspondence, manuscripts, a document, and printed materials. Cataloged materials include two poems by Igorʹ Severi︠a︡nin, Elena Miller, and letters from Nikolaĭ K. Roerich to Father Georgiĭ Spasskiĭ. Correspondence contains mostly letters to Elena Miller, and also includes letters to Archimandrite Afanasiĭ and others. There is also a letter dated 1919 from abbot (igumen) Serafim of the Belogorskiĭ monastery to Grand Prince Nikolaĭ Nikolaevich, describing the conditions and mood of the peasants in the Perm ́area. Manuscripts are by various persons on religious and political topics. Printed materials consist primarily of monarchist and religious mimeographed materials, fliers and pamphlets.

The papers include correspondence, subject files, photographs, and printed materials. The majority of the collection concerns the mission of the American Red Cross to Russia in 1917-1918; Thacher served as a secretary of the mission. There are letters and telegrams by W.B. Thompson and Raymond Robins, records of supplies, shipments, and distribution reports and over 600 photographs from Russia, China, and Romania. There is substantial correspondence from 1918-1919 concerning Russia, including letters by Louis Brandeis, Felix Frankfurter, and Lillian Wald. A substantial part of the collection concerns Russian war relief in 1941-1942, an area in which Thacher was active. Printed materials include a pamphlet and an article on Russia prepared by Thacher after his return from that country in early 1918.

Papers consist of correspondence, manuscripts, and printed materials. Letters are to Nechvolodov and others. Manuscripts by various authors cover political and religious topics, including one by Vladimir Rudnev about the Imperial family. There are minutes of meetings of the Soi︠u︡z Russkikh Patriotov (Union of Russian Patriots) from 1918. Printed materials consist of monarchist mimeographed materials, pamphlets, and fliers.

Correspondence and memoirs of Vereshchagin. Correspondence includes letters from a number of major emigre cultural figures, such as Ivan Bunin, Matild́a Ksheshinskai︠a︡, Vasiliĭ Nemirovich-Danchenko; there are also poems by Nemirovich-Danchenko and by Nadezhda Teffi. In addition, there are letters by members of the Imperial family in exile, particularly Grand Prince Vladimir Kirillovich. Vereshchagin's memoirs touch on such subjects as his childhood and family, the Imperial Corps of Pages, cultural life in St. Petersburg and Petrograd, and the early 1920's in Petrograd and Moscow. In addition, there is a pamphlet of poems by Vereshchagin"Stikhi" (1955).