Thanks for your help.
I found the Springfield HOG website and sent an email, but haven't received a reply yet. If/when I do, I'll post the information.
Thanks to all who are helping organize this!
Have you contacted the Protest Warriors? They have a fairly organized group in Columbia, MO at Mizzou. They might be able to direct you to a group at SMS out of Springfield. Met a few at one of W's rallies. Very effective group.