Hi! There is a twice-annual trad shoot that takes place in Pleasanton, KS called snow's bow shoot. I went once, and plan on going this september. it's the 25th and 26th. You can call this number for info on it: 913-709-7438
I know it's not a club, and maybe you've already been to this, but I figured I'd post because I imagine you could find a club there!
There's a guy in NE kansas (near leavenworth) who runs a trad-only shop called the Nocking Point. He helped me out a lot a couple years ago when i first got into archery.
There's info for all kinds of kansas stuff on his website, thenockingpoint.com
hope this helps, maybe I'll run into you in september...
Patrick