Corey - That simple sulphur nymph pattern was a Joe Kohler tie. Just a brown angora carrot shaped body, with wood duck tails. I still carry some of them, including some actually tied by Joe.
I miss Joe a lot. Learned a ton from him! A bunch of his friends pitched in and bought a plaque and a small willow tree - the parks dept put the plaque and tree on the far downstream side of the wooden footbridge. They both got washed away by floods.....