Joseph "Usick" Vanzler (November 29, 1901 – June 21, 1956), best known by the pseudonym John G. Wright, was a Jewish-American socialist, activist and translator.
Vanzler is best known as the translator of a number of the important works of Leon Trotsky — materials which helped to establish to expand the influence of the Trotskyist movement in the English-speaking world.
[1][2] Vanzler was permitted to attend Russian-language school, institutions which strictly limited Jewish enrollment as part of a policy of official antisemitism under the Tsarist regime.
Although he left without a degree, Vanzler developed a formula for spermicidal jelly for use as a birth control measure and he became engaged in its manufacture and sale.
[3] Vanzler joined the Communist League of America, the main American Trotskyist political organization of the day, in 1933.