The papers consist of correspondence, manuscripts, documents, subject files, photographs, and printed materials. Correspondence in the collection includes 1 item from Ivan Bunin, 2 from Vladimir Davydov, and many from G. A. Alekseev. Mendeleev's extensive memoirs, "Svet i teni v moei zhizni," discuss his childhood and youth, government service, World War I, the 1917 Revolution and the Civil War, and life in the emigration up to 1933. Subject files in this collection concern the Prague Russian Archive, the Union of the Russian Nobility, the Russian Imperial family in the emigration, and other topics. Printed materials include an almost complete set of the weekly "Parizhskii Vestnik" (1942-1944).

Papers of Dmitrii Nikolaevich Liubimov, consisting of correspondence, manuscripts, documents, photographs, and printed materials. Correspondents include Vasilii Maklakov and Boris Zaitsev, and there is a document signed by Boris Savinkov. Manuscripts include Liubimov's memoirs of his years in the Ministry of Internal Affairs, "Russkaia smuta nachala deviatisotykh godov (1902-1906)", and others by him on many topics, often based on his personal experiences. Liubimov scrapbooks from the emigration include notes and clippings on various topics. There are materials relating to the activities of his wife, Liudmila Ivanovna, as representative of the Russian Red Cross in Poland in 1919-1922, including correspondence and a photograph album.