Collection includes correspondence, manuscripts, notes, documents, financial records, photographs, subject files and printed materials. There are notes from Evgeniĭ Chirikov and Aleksandr Kuprin, and the autographs of Mark Aldanov, Ivan Bunin, and Nikolaĭ I︠U︡denich. There are manuscripts and notes by Mashukov and others, chiefly on the Civil War. Subject files also touch on the Civil War, as does much of the printed material.

Papers include correspondence, manuscripts, documents, photographs, subject files, maps, and printed materials. Cataloged correspondents include Georgiĭ Lv́ov, Anton Kartashev, and Petr Struve. The correspondence concerns to a large extent I︠U︡denich's aid to fellow emigres in France during the 1920s and 1930s. Manuscripts include a memoir about I︠U︡denich by his widow, Aleksandra, and I︠U︡denich's diary from 1919. Included also are two sets of the files of the Northwestern Army from 1919-20, and additional subject files concerning the Civil War. There are financial records of both the Northwestern Army and of I︠U︡denich himself. The photographs are of the Caucasian front, which I︠U︡denich commanded in 1914-17. Maps are of both the Caucasian front in World War I and of the Baltic region and the campaigns of the Northwestern Army.