Which non profit practice and medical research group based in Rochester, Minnesota was founded by William Worrall Mayo?
William Worrall Mayo William Worrall Mayo ( ; May 31, 1819 – March 6, 1911) was a British-American medical doctor and chemist. He is best known for establishing the private medical practice that later evolved into the Mayo Clinic. He was a descendant of a famous English chemist, John Mayow. His sons, William James Mayo and Charles Horace Mayo, established a joint medical practice in Rochester in the U.S. state of Minnesota in the 1880s.
Rochester Numismatic Association The Rochester Numismatic Association (RNA) is a not-for-profit organization with an educational mission. The RNA was organized in 1912 by a group of local collectors to attract the American Numismatic Association's annual convention to Rochester, New York, USA. They met with success as the ANA did hold their convention in Rochester. The RNA has met continuously since 1912. Only one local coin club, the Boston Numismatic Society, founded in 1860, has a longer record of continuous meetings.