The papers include correspondence, manuscripts, documents, photographs, and printed materials. Among the correspondents are Boris Bakhmeteff, Pavel Mili︠u︡kov, Ivan Shmelev, and Petr Wrangel. There is a manuscript of General Denikin's entitled, "Ocherki russkoĭ smuty," and of some of his other writings. Subject files deal with the Civil War and the emigration. Extensive printed materials include General Denikin's library and a collection of chiefly Russian emigre periodicals. Boxes 51, 52, 56, 61 have been integrated in the SEEC periodical collection.

In 1917 I︠A︡si︠u︡kovich was sent to the United States to serve as Chief of Information and Report Section, Division of Supplies, in the embassy of the Provisional Government. The items in this collection (correspondence, documents, and printed materials) chiefly concern his work in the United States. Also included is a letter by the Russian ambassador, Boris A. Bakhmeteff.