Correspondence, writings, clippings, printed matter, and photographs, relating to various
aspects of Russian history and Russian emigre affairs; the acquisition of Russian
historical materials; and the Russian Orthodox Church in the United States. Includes
letters from Sergei A. von Mohrenschildt, Russian military historian and father of D. S.
Von Mohrenschildt, describing political and economic conditions in Poland under Soviet
and Lithuanian occupation, 1939-1940