Buffalo Hunting Crew ?

[Shotgun Steve]

Buffalo hunting crew taken in the mid 1870's. The dog in the picture sure looks like an original bulldog.

[Stillwater]

The dog, With his cropped ears, looks more like an APBT, American Pitt Bull Terrier. A very popular dog during the Victorian era, in America.

I currently have an eighty-five pound male, that thinks he's a lap dog, to every woman that comes around our house.

Pete, the dog in the "Little Rascals" movies, was an APBT.

Bill

[Shotgun Franklin]

A '76, a Sharps and I can't make it out?

[Dr. Bob]

I'd say that the rifle on the left is a ML Plains rifle. 

[ChuckBurrows]

I'd say that the rifle on the left is a ML Plains rifle.  

Bob - With that real short fore end and ram rod placement I'd say a muzzle loader double barrel more likely........
as noted the center rifle is a M1876 Winchester and that along with the dip in the boot tops on the shotgunner would IMO date this to the late 1870's or early 1880's?