A light engine move past the invading diesels grabs John's attention away from the shop overview shots he'd been taking on this July morning 60+ years ago. The 2-10-0's were the heavy haulers on the coal runs. The Baldwin Centipedes have been downgraded to helper service, hence the single stripe (original diesel) freight scheme.
An attempt to put the best picture of engines that represent each of America's railroads. When a better picture of an engine/type is found, it will be added.