But the men in the photo appear fairly close in age. If the photo was taken in 1892, Carver and Kilpatrick were about 18 years old, while McCarty, born in 1852, was 40.

But to live by the “Gunfighter’s Code” of the Old West was to die by it, too. As a Kansas marshal in 1871, Hickok shot dead a cowboy who’d unexpectedly fired on him, but then when his own ...