EVB2936549: Mayo family portrait, c. 1900. From left: Charles Horace Mayo (1865-1939), William Worrall Mayo (1819-1911) and William James Mayo (1861-1939).William Worrall Mayo emigrated to the U.S. from England in 1845 and established a surgical practice in Rochester, Minnesota in 1863. His sons joined his practice and founded the Mayo Clinic in 1905 / Bridgeman Images