My two cents pointed to West Chicago. The only reason I knew that was my dad was a 50-year railroad man, who grew up in Chicago. He told me about of all the "big houses" the many railroads brought to Chicago and how it became a central rail head town in the 1920s. He was born in 1900. If you delve into West Chicago's history, you will get names of those who wanted to create an elite environment where all the big time investors could escape the working class. The large tracts of land were bought and developed by railroad men with extremely deep pockets. Maybe, it was just an elitist club that members wanted to play amongst themselves -- thus the chips were purchased for social poker.