Eufrosina Dvoichenko-Markov

Eufrosina Dvoichenko-Markov was an American citizen and spy for the New York KGB "Rezidentura" from 1943 to 1945. Her son Sgt. Demetrius Dvoichenko-Markov of the United States Army, also worked for Soviet intelligence. Eufrosina provided Soviet intelligence with information on Romanians, Carpatho-Russians and other exile groups in the United States. Dvoichenko-Markov also provided information on United States Department of State personal with whom she had contact.

Venona

Eufrosina Dvoichenko-Markov codename in Soviet intelligence is "Masha". Dvoichenko-Markov is referenced in the following Venona project decryptions:

*894 KGB New York to Moscow, 10 June 1943
*627 KGB New York to Moscow, 5 May 1944
*864 KGB New York to Moscow, 16 June 1944
*1053 KGB New York to Moscow, 5 July 1945
*1182 KGB New York to Moscow, 19 August 1944
*1508 KGB New York to Moscow, 23 October 1944

References

* John Earl Haynes and Harvey Klehr, "Venona: Decoding Soviet Espionage in America", Yale University Press (1999), pg. 259, 347, 449. ISBN 0300077718.
* John Earl Haynes, [http://www.johnearlhaynes.org/page66.html "Cover Name, Cryptonym, CPUSA Party Name, Pseudonym, and Real Name Index. A Research Historian’s Working Reference"] (revised February 2007), on the author's web site.

Works

* Eufrosina Dvoichenko-Markov, "Jefferson and the Russian Decembrists", American Slavic and East European Review, Vol. 9, No. 3. (Oct., 1950), pp. 162-168. [http://links.jstor.org/sici?sici=1049-7544%28195010%299%3A3%3C162%3AJATRD%3E2.0.CO%3B2-E 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. [http://links.jstor.org/sici?sici=0021-1753%28195209%2943%3A3%3C243%3ATPOASA%3E2.0.CO%3B2-C JSTOR link]