Harpo Marx on behalf of Harpo, Chico, and Zeppo, whom Lemmon mentioned by name. It was one of Groucho's final major public appearances. "I wish that Harpo and Chico could be here to share with me this great honor," he said, naming the two deceased brothers (Zeppo was still alive at the time). Groucho also praised the late Margaret Dumont as a great straight woman who never understood any of his jokes. Harpo Marx Arthur "Harpo" Marx (born Adolph Marx; November 23, 1888 – September 28, 1964) was an American comedian, actor, mime artist, and musician, and the second-oldest of the Marx
Zeppo Marx that "Herbie" was tagged with the name "Zippo" because he liked to do chinups and acrobatics, as the chimp did in its act. The youngest brother objected to this nickname, and it was altered to "Zeppo". In a TV Interview, Zeppo said that Zep is Italian-American slang for baby and as Zeppo was the youngest or baby Marx Brother he was called Zeppo. Zeppo replaced brother Gummo in the Marx Brothers stage act when the latter joined the army in 1918. Zeppo remained with the team and appeared in their successes in vaudeville, on Broadway and the first five Marx