Factual error: Horses tied behind Elsa seem to be wearing nylon flat halters that weren't invented until Feb 1894.
The Crossing - S1-E4
Factual error: The Dutton camp as well as Shea Brennon and Thomas are using modern thin Teflon/non-stick coated coffee mugs/pot.
Question: At the beginning, when Dutton wakes up on the battlefield, was it that he was just knocked unconscious by either the concussion of an artillery round or even the butt of a musket?