The collection consists of correspondence, a diary, manuscripts, memoirs, notes, a subject file, photographs and printed materials. Correspondence is primarilly addressed to Orlov and his wife. Manuscripts and memoirs, chiefly by Orlov, deal with Civil War topics. Orlov's diary covers the years 1918-1921. Notes are on World War II, and the subject file concerns the death of Orlov. Photographs include a group picture of a Gallipoli Society meeting in Prague. Printed materials include clippings, mimeographed materials, pamphlets and copies of periodicals, all relating to the Gallipoli Society.

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.

The collection consists of correspondence, manuscripts, documents, photographs, subject files and printed material. The correspondence is primarily from the 1920s and includes letters from G. E. Lv́ov and S. P. Mel'gunov and one or two items each from M. A. Aldanov, I. A. Bunin, N. V. Chaikovskii, A. L. Tolstaiia, V. F. Zeeler and others. The manuscripts are primarily in the form of notes in Polner's hand and include Polner's diary from the years 1919-1925. The documents belong to Tikhon Polner's brother, Sergei, and deal with the latter's expulsion from the USSR in 1921. There is extensive material in the subject files on the writings of Lev Tolstoĭ, including typescript copies of several Tolstoi manuscripts and clippings of the reviews of Polner's book on Tolstoi. Also included is a photograph of A. I. Herzen from the 1850s.