I would say you're safe in the Reading assumption. The Darby Creek shot is DEFINITELY Darby Creek-just of the old Industrial Hwy (Rte 291) I was there with my Dad in the early 70's and another VO100m , 2710, was there, as well as a GP35/GP7/RS3 lashup ready to depart. At one time, this was a Darby Creek-Rutherford run, but I don't know if that ran that far so close to the end of the Rdg. Th shot at Rdg is of a Jordan spreader, one of several owned by the Rdg . The wings are used, in addition to snow removal, to spread ballast and conform the "shoulder" to a uniform contour sort of like a ballast regulator would. A line in New England, the SLR has one still in semi-regular use, tho' stored offline on the New Hampshire Central at Columbia NH. Look forward to more pix!
Mitch