I'm just gonna put it right out there - I'm a noob. I tried searching the forums, but manoman is it hard to search in this topic. So I figured that I'd go right to the experts. I know there's a bunch of you CR guys that can answer this one.
I'm trying to build an early '80s HO CR set, and I know that anything marked CR is fair game. However, other than RailBox, PC, and the other PA road names, which additional roads were hauled by Big Blue? I saw a Sea Land trailer in a pic, and some CN boxcars in a rail yard, but I could swear that I saw some SOU boxcars hauled around, too. Am I right, and if so, what else do you know of?