Eufrosina Dvoichenko-Markov

Eufrosina Dvoichenko-Markov (1901–1980) was a Russian-American history and literary scholar identified by National Security Agency as agent Masha who worked for the New York NKGB Rezidentura from 1943 to 1945. Her son, Sgt. Demetrius Dvoichenko-Markov of the United States Army, is also identified by the Venona papers as a Soviet agent, but spent the rest of his life as an academician in the United States. Masha provided Soviet intelligence with information on Romanians, Carpatho-Russians, and other exile groups in the United States. Masha also provided information on United States Department of State personnel with whom she had contact.

She died in Moscow in 1980.

Works Eufrosina Dvoichenko-Markov, Jefferson and the Russian Decembrists, American Slavic and East European Review, Vol. 9, No. 3. (Oct., 1950), pp. 162–168. JSTOR link Eufrosina Dvoichenko-Markov, The Pulkovo Observatory and Some American Astronomers of the Mid-19th Century, Isis, Vol. 43, No. 3. (Sep., 1952), pp. 243–246. JSTOR link Двойченко-Маркова Е. Русско-американская дружба во время Крымской войны//Морские записки. Том XII. No. 2. Нью-Йорк. 1954 г. С.3-18.