Factual error: Moody's hotel room wall lamp has an electric bulb in it. So do all the Chinese lanterns in the following barn dance scene. (00:44:15)
Factual error: Throughout the movie, characters strike matches to light lamps. While "strike anywhere" matches had been invented by this time and were quite the rage in Europe (despite an alarming tendency to explode due to the volatile chemicals used), they were an unknown commodity on the American frontier until well after the turn of the century. (00:49:00)