Eufrosina Dvoichenko-Markov
Eufrosina Dvoichenko-Markov was a Russian-American history and literary scholar identified by NSA 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 Venona papers as a Soviet agent, but spent the rest of his life as an academician in the USA. 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.Works
- Eufrosina Dvoichenko-Markov, Jefferson and the Russian Decembrists, American Slavic and East European Review, Vol. 9, No. 3., pp. 162–168.
- Eufrosina Dvoichenko-Markov, The Pulkovo Observatory and Some American Astronomers of the Mid-19th Century, Isis, Vol. 43, No. 3., pp. 243–246.