Historical information
The man in the white hat is Freddy Paasch and the other man is Charles D'Alton. Note that names have been inscribed on the rock on the lower right side of the photo (visible only on Copy 1). The second copy is available under Additional Images.
Physical description
The photo shows two men (Freddy Paasch and Charles D'Alton), accompanied by a dog, standing at the base of, and looking up at, a large waterfall (MacKenzie Falls).