RE: St. Louis Union Station.
My uncle was one of the contractors for the renovations, but I was in college at the time and never got down there to visit, alas!
I do have one set of the TRRA copies of the track plans; they are huge! I need to get them copied, as they probably won't last too many more years. I need to get them to a place that has a big enough scanner bed for the job. My ex-wife's grandfather was a TRRA switchman and signal maintainer for all his adult life. These plans are one memorial I have of that grand old guy. The other is a TRAA coal-fired caboose stove.