The papers consist primarily of the Kosatkin-Rostovskiĭ's memoirs. His manuscript memoirs (150 p.) discuss his life up to 1906. Her typescript memoirs (440 p.) discuss her childhood, career as an actress in St. Petersburg, 1917-1918 in Petrograd, and the emigration in France. Also included are his diary for June-July 1940; a few letters written to him; clippings of his newspaper articles (many signed with the pseudonym "Antar"); and a book with his poetry and with essays dedicated to him; "Krestnym putem k voskresenii︠u︡" (Paris, 1948).

The collection consists of a photograph of Sergeĭ M. Lifaŕ correspondence, a diary, manuscripts and memoirs, subject files, documents, military service records and questionnaires, membership registers of the Union of the Knights of St. George (Soi︠u︡z georgievskikh kavalerov), photographs and printed materials. The collection mostly concerns the Russian General-Military Union and the Union of the Knights of St. George. The diary is by Lev L. De-vit on the Civil War. Subject files include materials on the Union of the Knights of St. George and Major-General Ippolit V. Savit︠s︡kiĭ. Service records, military service questionnaires, membership records and photographs deal with members of both organizations. Printed materials include mimeographed bulletins of these organizations and a book listing the recipients of the Order of St. George, dated November 26, 1916.