I wouldn't say there is an Oliver section, but around the building, there are old photos, and even some plow shares. Most of the history relates to their company, which is interesting as well. I didn't think I was getting any special treatment, so just stop in and tell them you are an Oliver collector and if they're not too busy, I'd bet someone would be glad to show you around. 

I do have pictures of the power house before restoration, so you can see what they had to do to make it what it is.