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