The Beaver Hole Hardwood Company Begins

Ok so maybe I missed it but what era is this set in?

All I got is you have a whorehouse and a forest.

Is it steam or diesel?
I haven't decided on era yet. Either mid to late 30s or early 40s. I also have a small O scale gallows that I plan on having an active hanging happening. lol It's transition era, so steam and OLD diesel. ....actually the 4 wheel locomotive I have could have even been gas powered.