A resource for reliable information about significant people, places, events, and things in Minnesota history.
William J. Mayo, William W. Mayo, and Charles H. Mayo, c.1910.
Made possible by the Arts and Cultural Heritage Fund through the vote of Minnesotans on November 4, 2008. Administered by the Minnesota Historical Society.
Minnesota Historical Society • 345 W. Kellogg Blvd., St. Paul, MN 55102-1906 (Map) • 651-259-3000 © .