Indeed - a riding buddy and I visited the Wheels Through Time museum a couple of years back and it is a superb display of American bikes dating back to the very earliest days.
The Walksler family are to be congratulated and thanked by the motorcycling community and the loss of their patriarch is a very sad event.
Anyhow - I am sure that anyone who has been there would join me in recommending a visit. It is well worth the trip and certain warrants a half or full day visit. Aside from all the V-twins, they have an incredible collection of inline four cylinder American bikes. They have Hendersons, Indians and others - all in perfect running order.
Related to that is an incredibly cool thing: if you stand beside a bike long enough and look especially interested, a staff member will come along and tell you about it and if you like, he will start the bike up - right there on the floor!
No exhaust ducting, no rope barriers, no ear protectors, no other guy standing by with a fire extinguisher - just bike guys having fun with bikes.
Pete