Joe Lando who played Sully did all his own stunts, and also ate real worms for this episode.
Matthew is no longer a Sheriff who does not carry a gun. He is not only carrying a gun, but he is shooting it in town. He has changed.
Zippers were introduced in 1893. Dorothy is wearing a dress with a zipper in the back.
Sully has a severe broken leg. He has no way to disinfect the wound. He is very likely going to get a severe infection. He could become septic.
First time Cloud Dancing is seen with his left ear pierced.