The one thing that was not considered here is the type of lens used by the 19th century photographer. It has to be a telephoto lens because in the B&W photo, everything looks compressed closer together than in the color photo. Even the distant mountain to the left of center looks closer in the old photo than it is in the color photo, which probably was taken with a "normal" lens or maybe even a smart phone or i-Pad camera. I took my first photo 72 years ago and have sure gotten a lot of photo experience over the years.
When the B&W was taken, the camera had to be a view camera on a tripod with probably a large wet plate for a negative. That camera was on a somewhat lower level than the color photo camera. Considering the almost vertical cliff beneath where those photographers probably stood, the B&W photographer had to be farther away from the subject (the mill and train, etc.) and thus had to use a telephoto lens to get a quality photo that would be satisfactory to whomever his client was.
Best regards, Hart Corbett