Correspondence, manuscripts, photographs, and printed materials of Toporkov. Much of the collection consists of materials Toporkov collected and used for a three-volume history of the Fifth Hussar Regiment (Pi︠a︡tĭ gusarskiĭ aleksandri ĭskiĭ polk), of which he had been a member. There are also materials concerning members of the regiment who emigrated after the 1917 Revolution. The correspondence (1919-1952) includes letters to and from members of several emigre military organizations. the manuscripts include essays and memoirs about the regiment during World War I and the Civil War (including several by Toporkov himself) as well as Toporkov's three-volume history of his regiment from the eighteenth century through 1929, the regiment museum, individual members of the regiment, regiment celebrations (1926-1935), the Court of Honor, and regiment financial affairs (1925-1948). Among the printed materials are clippings and materials relating to a number of emigre organizations.

The collection contains Simonovich's correspondence, manuscripts, doucments, subject files, and printed materials. There are letters to Simonovich from a friend who had settled in Yugoslavia, A. S. Poplavskiĭ, and Belgian postcards from before World War I. Manuscripts deal with Simonovich's experiences in the Imperial army on the Caucasian front and in the White army under general Slashchev. There are also essays devoted to the Russian emigre colonies in Belgium and in France. The subject files concern the Belgian section of the Gallipolian Society (Obʺshchestvo Gallipolit︠s︡ev) and Russian emigre events in Belgium. The printed materials include chiefly miscellaneous journals and clippings, some with articles by Simonovich.