The collection consists of manuscripts, photographs, original watercolors, clippings and printed materials. The collection primarily concerns Ms. Post's family in Russia before the Revolution and in the emigration in France and the U.S.A. and to Boris Bakhmetev who was the ambassador of the Russian provisional government to the United States, later chairman of the Lyon Match company in Long Island City where Ms. Post worked for many years.

The collection consists of correspondence, manuscripts, memoirs, minutes of meetings, documents, maps, photographs, and printed materials, mostly relating to World War I. Correspondence, mostly to Owie, includes a letter from Grand Duke Gavriĭl Konstantinovich. Memoirs are by Sergeĭ Konoplev concerning World War I, and manuscripts appear to be by Owie on the war and anti-Communist topics. Minutes are from the Society of Officers of the 3rd Infantry Regiment of the Life Guard (Leĭb-Gvardiĭ 3-iĭ strelkovyĭ polk). Maps, documents, and photographs deal mostly with Owie's service during World War I. Among the photographs is one of Nicholas II from 1913.

The collection includes cataloged photographs (Nicholas II, Grigoriĭ Semenov) and arranged correspondence to both Semchevskiĭ and his wife. The main item in the collection is Semchevskiĭ's eight-part memoir which describes his childhood in Tbilisi, his service as kamer-pazh (page of the bedchamber) to Nicholas II and his military career in World War I and the Civil War. It also describes Semchevskiĭ's life as an emigre in Berlin, where he ran a bookstore, in England, where he manufactured motorcycles, in Austria, where he worked at an oil refinery, and eventually in the United States. There are also documents (such as military records and passports) and a photograph of Semchevskiĭ and his wife taken in 1921.

Correspondence, manuscripts, documents. photograph, subject files and printed materials of Mikhail S. Stakhevich. There are catalogued letters from Daniel D. Fedotoff-White, arranged letters to Stakhevich and later, his widow (mostly from the 1930's and 1940's), and letter drafts and carbons by Stakhevich. There are manuscripts by Stakhevich and others (including the wife of General A.A. Brusilov), some of which were written for the emigre journal "Morskoĭ zhurnal" published by Stakhevich in Prague from 1927 to 1942. The documents relate to Stakhevich's family, career and life in emigration. There is a group photograph of naval officers on the "Rossii︠a︡ with Nicholas II and Admiral Essen. The subject files concern the Imperial Navy, the Association of Former Imperial Russian Naval Officers and Stakhevich himself. The printed materials include naval communiquʹes from 1917 to 1919, clippings and a copy of "Spisok lichnago sostava sudov flota" (Petrograd, 1916).

Correspondence, documents, diaries and notebooks, photographs, printed materials and memorabilia of Olga Ivanovna Subbotina (or Soubbotine, 1886-1963), her grandmother, Mariia Sergeevna Benckendorff, and her sister, Elizaveta Ivanovna Taube (Mrs. Harold Roberts). The correspondence includes letters and telegrams of Aleksandra Fedorovna, Empress of Russia. The letters of Mariia Benckendorff's son, Vasilii Dolgorukov, provide information about the Imperial family in 1916-1918. There are diaries and notebooks of Marii Benckendorff, Pavel Konstantinovich Benkendorff, Ol'ga Subbotina and Elizaveta Taube. Among the documents are IDs, birth and marriage certificates, passports, wills, etc. Financial and legal documents include a file entitled "Claim against the National Bank of New York", which contains material about the exile of the Imperial family to Tobolsk and Ekaterinburg, as do other folders. There are photographs of immediate and extended family members, Nicholas II and his family and European royalty. There is also family and Alexandra Fedorovna's, Empress of Russia, memorabilia.

The photo album depicts the Visit of his Imperial Majesty to the Headquarters of the Commander-in Chief, dating from 21-23 September 1914. The album includes 70 photographs, both candids and posed shots. Tsar Nicholas II actually only appears in a few, as does Grand Duke Nikolaĭ Nikolaevich; more of the photographs are of scenes and soldiers, apparently around the army headquarters.

ROVS North America (ROVS-N.A.) Records consist of correspondence, manuscripts, documents, photographs, organizational records, subject files, and printed materials. There are also papers of the Paris-based Sovet Rossiiskogo Zarubezhnogo Voinstva (Council of the Russian Military Abroad) and other emigre military and political organizations active in New York, San Francisco, Los Angeles and South America. The cataloged correspondence includes letters by Evgenii Miller, Nikolai Tsurikov, Aleksandr Kutepov and other emigre figures and by Richard Nixon, Lyndon Johnson, Barry Goldwater and other prominent American politicians. Arranged correspondence series consist of general office files, Paris-New York files, correspondence of Aleksei von Lampe and Vladimir Vitkovskii and topical correspondence files. Among the manuscripts are short articles and reminiscences by various people. There are photographs of Evgenii Miller, Nicholas II and of emigre organizational gatherings during the 1950s and 1960s. The organizational records include circulars, bulletins, orders, memoranda, reports, publications and financial records for ROVS and the Sovet Rossiiskogo Zarubezhnogo Voinstva. Subject files concern such topics as the Elisavetgrad Military Academy, the Union of the First Kuban Campaign, the Gallipoli societies, the Ingermanlandskii Regiment and the Russian Anti-Communist Center in New York. The printed materials include a book by Boris Kuznetsov and publications and circulars from other emigre organizations.

Related materials can be found in the following Bakhmeteff Archive collections: Arkhangel'skii, Kutepov, Lampe, ROVS-North America, and Shatilov.

Correspondence, manuscripts, photographs and subject files of Witte. The correspondents include Ivan S. Aksakov, Tsar Aleksander III, Tsar Nicholas II, Konstantin P. Pobedonost︠s︡ev, I︠U︡riĭ Samarin, Lev N. Tolstoĭ and Kaiser Wilhelm II. The manuscripts, which constitute over half of the collection, consist of Witte's memoirs and of his work on the Russo-Japanese War, and include a signed typescript essay by Lev N. Tolstoĭ. The photographs depict the signing of the Portsmouth Treaty ending the Russo-Japanese War (Portsmouth, N.H.). The subject files, which are primarily typescript copies of documents, refer to such topics as the various assassination attempts on the tsars, questions of agrarian reform, relations with Germany, and the siege of Port Arthur. There is also a framed pen and ink drawing depicting an event in Witte's public career.

Lists, subject files, photographs, etchings and printed materials relating to the Pazheskii Korpus (imperial Corps of Pages), a school for the sons of the Russian nobility founded in 1802, and the Soiuz Pazhei (Union of Pages), the emigré alumni organization founded in 1920. The materials were collected by representatives of the Union of Pages. The collection consists chiefly of mimeographed newsletters, books, printed mementoes, such as programs, menus, tickets, and school forms, and of pictorial materials, especially photographs and etchings. The great majority of the materials pertain to the Imperial Corps of Pages and to Russia's imperial family, and include many unusual photographs portraying school life and the life of the family of Nicholas II. There are also old photographs of Moscow, St. Petersburg, and Tsarskoe Selo, printed reports of the State Council for 1894-99, newsletters published by the Union of Pages and miscellaneous Russian and foreign publications, originally part of the library of the museum of the Union of Pages in Paris.