There is a reagional chapter to the CCGTCC. Great Lakes Chapter.

I think they have had meetings or conventions(?) in Elmhurst. You might try with them first. I just checked their website and there is no mention of anything other than their next meeting in Michigan somewhere.

Go to http://www.ccgtcc.com and look for the chapter listings then click on Great Lakes Chapter. They might be able to answer your question. Click on the Club Info tab and you should find the link to the different chapters of CCGTCC.