Harpo Marx York accent his entire life. According to those who personally knew him, Harpo's voice was much deeper than Groucho's, but it also sounded very similar to Chico's. His son, Bill, recalled that in private Harpo had a very deep and mature soft-spoken voice, but that he was "not verbose" like the other Marx brothers; Harpo preferred listening and learning from others. Harpo's final public appearance came on January 19, 1963 with singer/comedian Allan Sherman. Sherman burst into tears when Harpo announced his retirement from the entertainment business. Comedian Steve Allen, who was in the audience, remembered that Harpo spoke for
Marx Brothers Marx Brothers until the premiere of "I'll Say She Is", which was their first Broadway show, so this would mean that they used their real names throughout their vaudeville days, and that the name "Gummo" never appeared in print during his time in the act. Other sources reported that the Marx Brothers went by their nicknames during their vaudeville era, but briefly listed themselves by their given names when "I'll Say She Is" opened because they were worried that a Broadway audience would reject a vaudeville act if they were perceived as low class. The Marx Brothers' stage shows became