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.

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