About Charles Horace Mayo
Charles Horace Mayo was an American medical practitioner and was one of the founders of the Mayo Clinic along with his brother William James Mayo, Augustus Stinchfield, Christopher Graham, Edward Star Judd Jr., Henry Stanley Plummer, Melvin Millet, and Donald Balfour. The Mayos' first partner was Augustus Stinchfield, who was hired by William Worrall Mayo. The private practice became the not-for-profit Mayo Clinic in 1919. Charles graduated with M.D. from Northwestern University in 1888.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.