Svitich's papers, which consist of manuscripts, photographs, subject files, and printed materials, chiefly concern the Orthodox church in interwar Poland. The papers also include Svitich's diaries, written in Poland between 1939 and 1940. Also included is an essay, in an unidentified hand, which Svitich attributes to V.V. Rozanov. There are photographs of Mikhail Artsybashev and Vladimir Burt︠s︡ev. Subject files concern: the Orthodox church in the Vilnius region in the late 19th century; meetings of various Russian organizations in 1917; many aspects of Orthodoxy in Poland in the 1920's and 1930's, including government persecution and in World War II. Among printed materials are issues of "Russkiĭ Golos"(Lwʹow) confiscated by the Polish government in 1939, and issues of Russian newspapers from World War II, including "Vestnik Russkago Komiteta v General-Gubernatorstve" (Warsaw).

Correspondence, manuscripts and printed materials of Boris Petrovich Vysheslavtsev. There are letters from Nikolai Berdiaev, Carl Jung, Anton Kartashev, Konstantin Korovin, Jacques Maritain, Aleksei Remizov, Grigol Robakidze, Theodore Strawinsky, and Ariadna Tyrkova-Williams. The manuscripts include essays and lectures on various topics including the Orthodox church, Russian literature and culture, philosophy, and the hereafter. There are numerous diaries, primarily from the 1930's and 1940's. The printed materials include clippings, off-prints, and various journals and books.

The collection primarily consists of unpublished manuscripts by Shavelśkiĭ. There are also letters from Shavelśkiĭ to his daughter (Marii︠a︡ Novit︠s︡kai︠a︡), several photographs of Shavelśkiĭ, clippings and miscellaneous printed items. Shavelśkiĭ's manuscripts include his memoirs (1920) which describe church affairs in Russia, World War I, the Imperial family and the 1917 Revolution; "Nabroski s natury" (1947), a series of brief essays and stories; "Pokhod protiv Rasputina" (n.d.); "Russkai︠a︡ t︠s︡erkov ́pred revoli︠u︡t︠s︡ieĭ" (1937); and "V dobrovolćheskoĭ armii" (1943), which describes Shavelśkiĭ's service as an army chaplain. Other manuscripts include brief sketches of Shavelśkiĭ by Feodor Bokach and N.N. Glubokovskiĭ.

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 manuscripts primarily concern calendar reform, including Perovskiĭ's calculations and ideas on how to proceed with this reform. The printed materials consist of eight copies of "T︠S︡erkovnyĭ Vestnik" seven with articles by Perovskiĭ, and one with his obituary.