It's a novelty photo.
I'm sorry, those are not their guns and they are not accustomed to the outdoors. It is clear that some of them have never handled a weapon in their lives.
But whatever. My interest in this topic ended five minutes ago.
APf
Well, all I can say is I have the word of Milo Brink's son that these are genuine photos of his father.
You have some supposed (and utterly unsupported) expertise in how people would have behaved in the 19th Century.
I think I win.