The Quality of Life
  1. Chicago Metro History Education Center, Time Line on Science, Technology and Business in Chicago
  2. "Scientific Humor", Science and Invention, (New York), August 1920, p. 413
  3. "Patent Advice", Science and Invention, (New York), August, 1920, p. 412
  4. "What To Invent", Science and Invention, (New York), August, 1920, pp. 411, 440
  5. "Electric Household Wrinkles", Science and Invention, (New York), August 1920, p. 371
  6. "The Ice Shortage Crisis", (McClellan Refrigerating Machine advertisement), The Chicago Daily Tribune, (Chicago, Illinois),.September 21, 1919
  7. "100 H. P. Voices for Conventions", Science and Invention, (New York), August, 1920, p. 360
  8. "Better Roads", (Dupont American Industries advertisement), The Independent, (New York), March 1, 1919, p. 305
  9. "For Sale, This Wilmette Home", (real estate advertisement), The Chicago Daily Tribune, April 13, 1919
  10. Hecht, Ben, 1001 Afternoons in Chicago, (1922), reprint, Chicago; Univ. of Chicago Press, 1992, pp. 53-55
  11. "Motoring, World Speeds Classics", Daily New Almanac and Year-book for 1919, Chicago Daily News Co., Chicago, Illinois, p. 275 - 276
  12. "Tribune Tours - 1919 - Route 28 - A New Route to Elgin", The Chicago Daily Tribune, (Chicago, Illinois), August, 17, 1919, p. 6
  13. "Autos and Car Kill Six - Death Rides From Inn With Motor Party ", The Chicago Daily Tribune, (Chicago, Illinois), October 20, 1919
  14. "Joyriders Kill 3", The Chicago Daily Tribune, (Chicago, Illinois), October 18, 1919
  15. State of Illinois, "Rules of the Road", Synopsis of the Motor Vehicle Laws, 1919, The Chicago Historical Society, Chicago, Illinois
  16. (photo), "The Chicago Loop", The Chicago Daily Tribune, (Chicago, Illinois), August 1, 1919
  17. "Progress of Chicago Since 1850", The Chicago Daily News Almanac and Year-book for 1920, Chicago Daily News Co., Chicago, Illinois, p. 802
  18. Sinsabaugh, Chris, excerpt from, "Who Me? ! Forty Years of Automobile History", Arnold Powers, Inc. Detroit, 1940 Excerpt - The development of the Automobile Club. Excerpt - The first Automobile Show.
  19. Eustis, John R., "The Link Between Farm and Market, The Independent, (New York), vol. 99, September 20, 1919 p. 378
  20. "Wealth and Traffic Demand the Best", (advertisement). The Independent, (New York), September 20, 1919, p. 378