World Innovations
  1. Sawyers, June Skinner. "James H. Breasted", in, Chicago Portraits, Biographies of 250 Famous Chicagoans, Chicago; Loyola University Press, 1991; pp. 36, -379.
  2. Sawyers, June Skinner, "Daniel Hale Williams" in, Chicago Portraits, Biographies of 250 Famous Chicagoans,. Chicago; Loyola University Press, 1991; pp. 266 - 268.
  3. "R-34 Home: 71 Hour Trip ", The Chicago Sunday Tribune, (Chicago, Illinois), July 13, 1919
  4. "Airplane Falls; Alcock, Atlantic Flyer Is Hurt", The Chicago Daily Tribune, (Chicago, Illinois), December 19, 1919
  5. "Ordinance creating the commission for the regulation of operations of aircraft in Chicago", Chicago City Council, 1919, City Council Collection, Illinois State Archives, Northeastern Illinois University, Chicago, Illinois
  6. Eustis, John R., "The Growth Of Rural Motor Express", The Independent, (New York),vol. 99, 1919, p 406
  7. (photo) "The Home Insurance Building", William Le Baron Jenny, architect, (Chicago, built 1883-1885, demolished 1931.), The Chicago Historical Society, Chicago, Illinois
  8. (photo), "Reliance Building", D. H. Burnhan & Co., architects, (Foundations and first floor built in 1890: Extended to full sixteen floors in 1894-95), The Chicago Historical Society, Chicago, Illinois
  9. (photo) "The La Salle Hotel" - 1909 - 1976", Holabird and Roche, architects, The Chicago Historical Society, Chicago, Illinois
  10. Sullivan, Louis H. Kindergarten Chats and other writings, Wittenborn, Schultz, Inc., New York, 1947, p. 109, p. 111
  11. Breasted, Charles, B., Pioneer To The Past: The Story of James Henry Breasted, Archaeologist, Scribners, New York, 1943
  12. "Science News in Photos", Science and Invention Magazine, (New York), August 1920, p. 373
  13. "How to Make it",. Science and Invention Magazine, (New York), August 1920, p. 401
  14. "Find Bones Of Two Massacred At Fort Dearborn?", Chicago Daily Tribune, (Chicago, Illinois),Tuesday April 1, 1919