David Shub
David Shub (1887 – 1973) was a social democrat arrested for activity in the 1905 Russian revolution and exiled to Siberia in 1906 and escaped to the United States in 1908.In 1930 he wrote the lead article on Stalin, probably the first authoritative profile to appear in the American press, for the New York Times magazine (22 March 1930)
His 1948 biography of Lenin has been reprinted over sixteen times, described as ''"indispensable to the student of contemporary history, of russia, and of social revolution".''
During his exile, he remained in close contact with leading figures of the Russian Revolutionary movement, including Bolsheviks Lenin, Trotsky, and Bukharin, and also liberals and socialists such as Kerensky, Miliukov, Chernov, Catherine Breshkovsky, and others. Provided by Wikipedia