O&W didn't have much to do after their anthracite traffic collapsed in the 1940s. The 7/50 ORER shows 234 hoppers, 35 gondolas, 34 box cars, and 11 flats; versus 2803 hoppers, 202 gondolas, 58 box cars, 25 stock cars, and 106 flats in January 1940.
David Thompson