Up at the top, where it lists "Home", etc., scan to the right and click "Members", then page 11...near top of page. Still, there's no guarantee that it's a current addy. Folks tend to change often and forget to update everywhere.
It might be best to send a PM. Bill is often active on the CAD forum.

Steve
Edit: I would also wonder if you're looking for Bill, Jim, or Clarence Lee. What are you trying to get done?