Soviet Union -- Correspondence
Prisoners' families -- Soviet Union -- Correspondence
Political prisoners -- Soviet Union -- Correspondence
Peasants Soviet Union Correspondence
World War, 1939-1945 soviet correspondence (Please note that the Great Patriotic War is coded as “World War, 1939-1945” in library catalogs).
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An online collection of digitized Soviet and post-Soviet postcards. OCR'ed and searchable by tags.
Sokolov, A. K. Golos Naroda : Pisʹma I otkliki ri︠a︡dovykh sovetskikh grazhdan o sobytii︠a︡kh 1918-1932 gg. Moskva: ROSSPĖN, 1998.
Kri︠u︡kova, S. Krestʹi︠a︡nskie istorii : Rossiĭskai︠a︡ derevni︠a︡ 1920-kh godov v pisʹmakh i dokumentakh. Moskva: ROSSPĖN, 2001.
Pis'ma Pobedy, An online digital archive of letters written by Soviet citizens during the World War II.
Personal Correspondence Resources in the Digital Handbook for Research on Soviet History