RJR: Yep, Been there, done that. I was out at the Iowa Terminal a while back. Let's see now; I believe that it was in 1969 or 1970. BUT, from your photos, it really doesn't look much different. Same W-B steeple cabs, same ROW and overhead. Really a neat place to visit.
But they don't have any GE steeple cabs, to the best of my knowledge. I think that the GE's were a bit older, at least of an older design, than the W-B's that these guys use. I remember when the North Shore had about five or six of them (where the term: "pups" were first used) and they served until the end of service in 1963. The Milwaukee Roads were used until the end of that operation in 1974.
Paul Fischer