Hi Joan I found this mention of Wooded Island you can find the entre article at http://www.state.il.us/hpa/Courthouse.htm Cris <snip> "When the St. Louis Fair ended, the building was again auctioned. Purchased on behalf of the Chicago Historical Society and the Chicago Centennial Commission, in 1905 the timbers were shipped to Chicago's Jackson Park; the courthouse was reconstructed, smaller yet, on Wooded Island. " The following can be found at http://postcards.twobees.com/chicago/ and has pictures.. "Wooded Island, Jackson Park Chicago, Illinois Postmarked: August 5, 1915 Divided back Jackson Park is located on the south side, extending 1 1/8 miles along Lake Michigan from 56th to 67th Streets. It has a total of 543 acres. It contains nearly 8 miles of drives, numerous walks and bridle paths, 107 acres of artificial lakes and 15, 315 square yards of outdoor gymnasiums. It is the site of the Worlds Columbian Exposition and contains a number of its landmarks, among then the Field Museum of natural History. An interesting view of the Wooded Island is the Cahokla Court House, said to be the oldest public building in the Mississippi Valley. It was built about the year 1716 at Cahokla, Illinois