Jack Soble

Jack Soble (May 15, 1903 – 1967) was a Lithuanian who, together with his brother Robert Soblen, penetrated Leon Trotsky's entourage for Soviet intelligence in the 1920s. Later, in the United States, he was jailed together with his wife Myra on espionage charges. He was born in Vilkaviskis, Lithuania as Abromas Sobolevicius and sometimes used the name Abraham Sobolevicius or Adolph Senin.