This book covers the period from the first settlement in 1825 to the year the book was originally printed, 1877. There are histories of the towns in DuPage County, such as, Addison, Bloomingdale, Wayne, Winfield, Turner Junction, Naperville, Downer's Grove, Hinsdale, Milton, York and Lisle. Biographical sketches are included on H.W. Knickerbacker, Frederick E. Lester, Philando Torode, Warren Lyon Wheaton, James G. Wright, Captain J.J. Cole, Charles B. Blodgett, Hiram H. Cody, Sherman P. Sedgewick, Hon. Lewis Ellsworth and Willard Scott, as well as many others. The author provides the reader with information on the officers of DuPage County, supervisors, newspapers, schools and colleges. DuPage's military history is given with a list of those who served in various regiments. These include: 7th Infantry, 10th Infantry, 12th Infantry, 13th Regiment of Illinois Volunteers, 13th Infantry, 33rd Infantry, 36th Infantry, 105th Infantry, 144th Infantry, 156th Infantry, 8th Illinois Cavalry and the 1st Artillery, as well as many other regiments. The author ends the book with a patron and business directory.