Correspondence, diaries, writings, notes, and clippings, relating to White Russian and Soviet activities in Mongolia during
the Russian Revolution, and the Russian émigré population during the Russian Civil War and subsequent years. Includes a memoir
Baron Ungern, Urga i Altan-Bulak : Zapiski Ochevidtsa Smutnom Vremeni vo Vneshneĭ (Khakhaskoĭ) Mongoliĭ v Pervoĭ Treti II-go
, relating to counter-revolutionary events in Mongolia during the Russian Revolution, and a translation by Elena Varneck of
Dmitrii Petrovich Pershin was a White Russian diplomat in Mongolia from 1918 to 1921, a Russian historian and novelist, and
subsequently a Russian émigré in China.