I have delivered presentations at four Illinois History Conferences in Springfield, Illinois. On Friday, October 9, 2007, I read a paper, “Chicago Time,” on the introduction of, and opposition to, Standard Time and Daylight Saving Time in Chicago at the 9th Annual Conference on Illinois History. The next year, on Thursday, October 30, 2008, I delivered the PowerPoint presentation “A Temple for the Muses: The Museum of Science and Industry,” at the 10th Conference on Illinois History. Subsequently, I gave this same presentation for the Museum of Science and Industry Volunteer Council on Saturday, March 28, 2009. Later that year, on Thursday, October 1, 2009, I delivered the PowerPoint presentation “Where Art and Science Dwell: The Intertwined Histories of Chicago’s Museums in the Park and World’s Fairs,” at the 11th Annual Conference on Illinois History. The next year, on Friday, September 3, 2010, I delivered the PowerPoint presentation “The Interconnected Histories of Chicago’s Aquarium and Zoos,” at the 12th Conference on Illinois History. Three years later, on Wednesday, September 26, 2013, I delivered the PowerPoint presentation “The Metropolitan Library Compact and the Development of the Chicago Public Library, The Newberry Library, and The John Crerar Library,” at the 15th Conference on Illinois History.