Melsdad,
When you get on the Cody Museum site, look under manufacturer to see the rifles. Be sure to look at the different ways the Hawken is listed. S. Hawken is photographs of John (Liver eating Johnson) Johnson's rifle. It wasn't on display when I was out there and took photographs, but special due to the history of the owner. J&S Hawken has one example. However, if you look under Samuel Hawken, there are a hand full of examples. Good reference material for those of us who have a soft spot for Hawken rifles.
Roger Sells
Also, Randall thanks a bunch for the web address.