From the pictures we have Federal Trucks were widely used in logging operations “back then.” They were built tough and simple. Chain driven with solid tyres.
Our club bought a whole bunch of them to “decorate” the layout. Just like our rolling stock what it looks like when it “hits” the layout is a far cry from what it looks like when it arrives. In these three pictures you can see how Chuck Whitlock has converted the truck to carry a VERY large log.