Said about Charles Evans Hughes in November 1909. "Taft and Roosevelt: The intimate letters of Archie Butt" by Archibald Willingham Butt, p. 224, 1930.
United States. President (1929-1933 : Hoover), Herbert Hoover (1974). “Herbert Hoover: Containing the Public Messages, Speeches, and Statements of the President”
"Oscar's First Black Winner Accepted Her Honor in a Segregated 'No Blacks' Hotel in L.A." by Seth Abramovitch, www.hollywoodreporter.com. February 19, 2015.