Hello, everyone. I'm studying Frisco passenger services between St. Louis, Missouri, and Oklahoma City, OK, ideally for the year 1955. I would like to find a Frisco employee timetable for this/these division(s), or at least a high-quality PDF scan. I've put my feelers out on eBay and the like bot there doesn't seem to be much available from the Frisco for this period. Naturally, I would be happy to pay reasonable costs associated with obtaining copies of this material. Can anyone steer me in a direction?