Correspondence, manuscripts, subject files and printed materials of Velḿin. The correspondence includes letters from Mark Aldanov, Mikhail Karpovich, Ekaterina Kuskova, Vasiliĭ Maklakov, Mikhail Taube, and Mark Weĭnbaum. Most of the manuscripts are by Velḿin himself and concern the Russian emigration in Poland, the 1917 Revolution and Civil War, and German concentration camps during World War II. The collection likewise contains Velḿin's diary (handwritten in eleven volumes) covering the 1900-1960 period. There are subject files devoted to Vasiliĭ Maklakov and to the activities of the Russian scouts, and there are numerous publications, such as journals, pamphlets, clippings and books.

Correspondence, manuscripts, diaries, notebooks, subject files, books and other printed materials of Berezov. The correspondence includes letters from Aleksis Rannit, Alexandra Tolstoy, and the editors of "Novoe russkoe slovo," Mark Weinbaum and Andrei Sedykh (pseudonym of Iakov Tsvibak). There are three different typescript versions and handwritten drafts of Berezov's novel "Volzhskii solovei" as well as manuscripts of his short stories and poems. There are also many notebooks containing drafts of poems and miscellaneous notes. Berezov's diaries cover the years 1944 to 1975. Printed materials include books and clippings about Berezov, also books by other authors from his library. A subject file on Alexandra Tolstoy contains numerous articles concerning her father as well as her work in this country; there are also poems by Berezov which are dedicated to her.