I just stumbled on this video. Lots of steam action, mostly around Cincinnati's Union Terminal in 1956. Some shots near the Ohio river. Mostly B&O. But NYC, PRR, N&W, L&N, C&O, SOU also represented. No Sound, but I really enjoyed the shots. Check the additional videos on the channel too.
It might be a Cincinnati thing. Mark Twain is alleged to have said, "If the world comes to an end, I want to be in Cincinnati. Everything comes there ten years later."