Okay, so I had found this amazing website where you could browse, by road name, the different engines that they ran and view pictures of each engine. It was basically a picture index of every engine from everybody, listed by road number under engine type.
For instance, you could do a search for RS-1’s, and it would come up with all the roads that had them. Or you could click on the Southern Pacific link and come to the listing of every type of diesel engine they had, with every road number they had for each type of engine.
It is NOT railfan.net gahhhhhhh i need this site for prototype referencing because i just bought a bunch of snow plows and mars/pyle headlight sets that i want to upgrade my engines with