No-- your ancestors aren't there in the museum (they are hopefully resting peacefully in their graves), but you may find that you can use museums to help reconstruct the details of the day-to-day lives of your ancestors. The author of this article uses several museums as examples of how to do so, including the Arabia Steamboat Museum (the Arabia sank with a full load of passengers and cargo after hitting a submerged walnut tree, which pierced her hull). She sank on the Missouri River, about an hour upriver from Kansas City, on 5 September 1856. She was raised in 1988; researchers found that mud and cold water had beautifully preserved most of her cargo. There are tips about making use of museum collections, and tips on how to locate museums of interest.
See NGS NewsMagazine 34:2 (Apr/Jun 2008), 18-22 for the complete story.