Our Congressman is the Honorable Rahm Emanuel. His contact info is as follows:

Washington Office:
1319 Longworth House Office Building
Washington, D.C. 20515-1305
Phone: (202) 225-4061
Fax: (202) 225-5603

Main District Office:
3742 W. Irving Park Rd.
Chicago, IL 60618
Phone: (773) 267-5926
Fax: (773) 267-6583

Furthermore, his website is listed as 'www.house.gov/emanuel', and his cosponsorship status can be seen here, at 'http://www.congress.org/congressorg/bio/sponsortrack/?id=129559'.

Maybe we can combine from different districts and have a larger meetup? I have not determined anything as of yet, as there is not yet any interest to be gauged.