MAP OF CINCINNATI MILK SHED SHOWING ROUTES AND MILEAGE ZONES

Henry Trumbower, "Transportation of Milk by Motor Truck," from Public Roads: a Journal of Highway Research, July, 1924

The year 1914 marked the beginning of the transportation of milk by motor truck to the Cincinnati market. By 1918 nearly 50 per cent of the daily shipments were by motor truck and the wagon shipments had practically ceased.