Here's a li'l extra image....check out Daveland Blog, he has a great shot of the old burning settler's cabin. We were debating whether the settler's corpse was once draped over a bench. I was SURE that this was where I had seen that dramatic pose, but obviously I was mistaken.
This is from a set of "story cards" by Sawyers (the early makers of Viewmasters). These are in a single strip rather than on a disc (to watch via a projector?), and there are 7 images on 10 different strips (2 strips per land). So....70 images in all. They appear to date from roughly 1960, and there are many unique shots compared to Viewmaster reels. The color, unfortunately, has shifted, since these were clearly not Kodachrome.
While I was disappointed that the settler was not in the gruesome pose, it's still an unusual shot with the cavalry officer in the foreground.