John, yes your railroad looks a little like New Ulm but needs lots of trees and a creek since this isn't Kansas anymore. There were/are four yard tracks there and a few spurs so if you added another double ended yard track it would be closer, maybe another spur for a liquid/granular fertilizer dealer like the Blair Line one with a tank or two, add a couple of large bins to the grain elevator and a large Pike Stuff warehouse with mechanical, coolers for a cheese manufacturer/warehouse.
Yes I did work for the: Illinois Central, Peoria&Eastern(NYC), ChicagoNorthwestern, Soo Line, Columbus&Greenville (Mississippi), Milwaukee Road, Illinois Terminal, Illinois Central Gulf, Soo again, Wisconsin Central, Minnesota Commercial, Progressive Rail, Wisconsin Northern, Kansas & Oklahoma and retired from Watco after fifty years as a railroader.
Looking forward to seeing your progress on New Ulm. Since retirement I have been working on a small, simple short line freight/steam, passenger, excursion HO railroad based on the Monticello, Il. Railrod Museum. It's mostly an around the walls 20'X20' layout with extentions through walls to two other rooms in our finished condo/basement.
Barry