Career
Her son, Sergeant 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 United States of America. 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.