William Worrall Mayo

British-American medical doctor and chemist (1819–1911)

William Worrall Mayo (May 31, 1819 – March 6, 1911) was an English American medical doctor and chemist. He is best known for establishing the private medical practice that later evolved into the Mayo Clinic.²

From Wikipedia’s article on William Worrall Mayo (this version), CC BY-SA 4.0.

Born May 31, 1819, died Mar 6, 1911.¹