I'm not sure where to begin with this search.
I'm sure this information exists in the numerous rail fan sites on the net, but I'm not even sure on what English search terms I should use.
For each NA RW route, I want to make a list of what railroad and motive power would be prototypical for a given time period.
So if someone wants to write a scenario for, say, Horeshoe curve in 1978, he would know what rolling stock in what livery to use.
Anyone has an idea?

