Emma had bruising on her cheek, then it faded when she talked to Matthew, then when she left the clinic it was back.
Emma told Hank she got herself a room at the boarding house. But there is no boarding house in town anymore. The rooms are all clinic recovery rooms.
Cloud Dancing keeps using AHO as a hello greeting but the word Aho is a Lakota Sioux word, not Cheyenne, meaning 'it is good', often said as an amen after statements or prayers.
Surgical gloves were invented in 1894.
Blood typing was not discovered until the early 1900s.