Sully is wearing a blue head band. This is an accessory that he wears again for the circus episode.
When Dr. Quinn moved to the homestead she retrieved her water from the creek. She evolved to having well water. Sully must have dug the well.
Dr. Quinn wears her signature duster for the first time.
Sully was a gold miner. He was caught in a cave in.
Sully and Dr.Quinn have been alone together in the wild before. They were together overnight in an Indian tepee.