Arthur Marx Arthur Marx Arthur Julius Marx (July 21, 1921April 14, 2011) was an American author, a nationally ranked amateur tennis player, and son of entertainer Groucho Marx, and his first wife, Ruth Johnson. He was named after Groucho's brother Arthur "Harpo" Marx. Marx spent his early years accompanying his father around vaudeville circuits in the United States and abroad. When he was 10, the family moved to Southern California, where the Marx Brothers continued their film careers. Marx was a nationally ranked tennis player before he was 18. While he was attending the University of Southern California, he won the National
Friedrich Adolph Roemer Versteinerungen des Harzgebirges" ("Fossils of the Harz Mountains"; 1843). He died in Clausthal. The mineral romerite commemorates his name, as does "Roemeriana", a publication issued by the Institute of Geology at the "Bergakademie" in Clausthal from 1954 to 1964. His younger brother, Carl Ferdinand von Roemer, was also a geologist. Friedrich Adolph Roemer Friedrich Adolph Roemer (15 April 1809 – 25 November 1869), German geologist, was born at Hildesheim, in the Kingdom of Westphalia. His father was a lawyer and councillor of the high court of justice. In 1845 he became professor of mineralogy and geology at Clausthal, and in