Yes indeed, Steve, that was some ultra light rail on Mac's property. Switchers ruled! Mostly I recall boxcars in there, although I have memories of hoppers, too, as even into the 1960's there was still demand for coal. The house I grew up in had a coal furnace until the late 1960's. In later years I used to enjoy eating at Atlas Coney Island because the crew ate there. It was the same guys all the time, and they were friendly and would share info if asked. Corunna Road was a viable retail corridor back then, and that is where we caught the bus to go downtown. And on the occasional lucky day the SW would be parked just east of the Ballenger Hwy crossing, where my mom would sometimes con the crew into giving her boy a cab ride to Corunna Road Yard
Is Atlas Coney Island still open? I haven't driven that stretch of Corunna Road in years. Their food was good, and prices reasonable. But I suspect that area would have difficulty supporting anything other than fast food today, for a variety of reasons.