Barnum & Bailey 1910's/ Unloading the flats #3

This picture would have been taken earlier since the cook house wagons would be the first things needed on the lot in the morning. The hook rope is hooked thru the ring on the back corner of the wagon with three men in front steering (poling) it along from flat car to flat car. I see "Cooking Dept." on the canvas cover, the first time I ever heard that expression.