The collection includes copies of official communiques sent and received by the Russian Imperial Embassy in London for the period 1886-1890 and 1919-1922; copies of reports forwarded by E.V. Sablin to the Council of Ambassadors in Paris, for the period 1922-1937; correspondence grouped around specific subjects; "case files" containing letters from and on behalf of individual Russian emigres wishing to enter Great Britain or to adjust their immigrant status; and letters received by E.V. Sablin and his wife Nadezhda Ivanovna from various persons, together with carbon copies of their replies. The most voluminous correspondence is between E.V. Sablin and V.A. Maklakov, V. Dobuzhinskiĭ, Joseph P. Kennedy, Aleksandr F. Kerenskiĭ, Vladimir V. Nabokov, Fedor I. Shali︠a︡pin, Petr and Gleb Struve, Adri︠a︡na V. Trykova-Williams etc. The remainder of the collection consists of manuscripts of articles and speeches both by Sablin and by others; public statements issued by Sablin in mimeograph form; miscellaneous mimeo material; clippings from both the Russian emigre press and British and French newspapers of articles by and about Sablin; as well as miscellaneous clippings, books, booklets, leaflets, performance programs, newsletters, Russian language newspapers published in England, photographs and several drawings and watercolor sketches.

The papers consist of correspondence, manuscripts, documents, subject files, photographs, a sound tape, and printed materials. There are many letters from Anton Kartashev; other correspondents include Mikhaĭl Karpovich, Philip Mosely, and Vasiliĭ Zenḱovskiĭ. There are manuscripts by Kartashev, Karpovich, and George Vernadsky, as well as by Novit︠s︡kiĭ himself on the Orthodox Church and the emigration. Subject files touch on his organizational activities. There are photographs of Novit︠s︡kiĭ with Dwight Eisenhower, Nelson Rockefeller, and Jacob Javits, and also of Zenḱovskiĭ. The sound tape is an interview with Novit︠s︡kiĭ on Voice of America about his father-in-law, Georgiĭ Shavelśkiĭ. Some of the materials concern Novit︠s︡kiĭ's brother, Evgeniĭ, and wife, Marii︠a︡.

The collection contains correspondence, documents, manuscripts, a diary, memoirs, subject files, photographs and printed materials, mostly pertaining to Bishop Sergii of Prague and the Russian Orthodox Church in emigration. Included is a manuscript (49 p.) entitled "Russkim russkii o russkikh delakh." The subject files on Bishop Sergii contain correspondence, manuscripts, memoirs, photographs and miscellaneous items by and about the bishop.

Correspondence, manuscripts, documents, photographs, subject files, and printed materials of members of the Zernov family, especially Nikolaĭ M. Zernov. Correspondence includes letters from Nikolaĭ Berdi︠a︡ev, Archimandrite Kiprian, Alekseĭ Remizov, Vasiliĭ Zenḱovskiĭ, and copies of many letters from Gustave Kullmann to his wife Marii︠a︡, nʹee Zernova. Manuscripts include: memoirs by Sofii︠a︡ A. Zernova about her childhood, youth, and family; Sofii︠a︡ M. Zernova's albums, poems, diaries and memoirs about the Civil War and the emigration in Europe; manuscripts by Nikolaĭ Zernov on religious and literary themes; a report by a Lt. Shokotov on his White Army detached service in 1917-1919; a brief manuscript by Vladimir M. Zernov claiming that syphillis was a contributing factor in Lenin's death; and manuscripts and speeches by Kullmann. Subject files include biographical information collected by Nikolaĭ Zernov on many emigre Orthodox churchmen and religious writers, and materials relating to Kullmann and the Zernov family.