Harpo Marx for the name Adolph (as a child, he was routinely called "Ahdie" instead). The name change may have also happened because of the similarity between Harpo's name and Adolph Marks, a prominent show business attorney in Chicago. Urban legends stating that the name change came about during World War I due to anti-German sentiment in the US, or during World War II because of the stigma that Adolf Hitler imposed on the name, are groundless. His first screen appearance was in the film "Humor Risk" (1921), with his brothers, although according to Groucho, it was only screened once and then
Biographies of Karl Marx / New York: John Wiley & Sons.[3] Originally published as part of a series "Modern Sociologists". Reissued 1963. Published in original German version 1967. Translated in Italian, French, Spanish and Greek. Many times reissued. Written by Heinrich Gemkow. Marx, Life and Works (New York: Macmillan, 1980) Karl Marx: An intellectual biography is a biography of Karl Marx by Rolf Hosfeld. Marx I is a biography by Michel Henry. Followed by Marx II. Karl Marx: Anthropologist is a book by American professor and chair of anthropology Thomas C. Patterson. Karl Marx: An Overview of his Biographies by Angelo Segrillo. Biographies of