There are four rifles in the picture
One is a Krag, what are the others?
Well, I played around with the picture, the guy next to the guy with the Krag has some sort of 1917 variant (I think I see a hole in the bolt knob), The guy in the back holding his rifle across his body looks to have a 1903 Springfield, I think I see a hole in the right side of the front receiver ring. The other guy carrying the rifle underneath his arm, I am not certain about, but would guess an 1895 Winchester with a Lyman receiver sight on it.