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
George Marx with noted arachnologists in America and Europe including Tamerlan Thorell, Eugène Simon, James Henry Emerton and George Williams Peckham. Marx completed and edited "Die Spinnen Amerikas" (The American Spiders) which had been left unfinished by the death of the original author, Eugen von Keyserling. Marx was a founder and active member of the Entomological Society of Washington and served as president of the organization in 1891. In addition to all his other activities he also found time to continue his medical studies and in 1885 received an M.D. from Columbian University (now George Washington University). Marx died on January 3,