Looking back over some notes, I came across the consists for the aforementioned trains , Nos 806 and 801 respectively, as listed in an accident report attached from 8/16/1922. The consists: No 806 "Memphian" 1109 - 4-6-0 locomotive 393 - Baggage Car 349 - Baggage Car 63 - Mail Car 755 - Coach 1701 - Coach "Rupert" - Pullman Sleeper "Graniphan" - Pullman Sleeper 100 - Frisco Business Car No 801 "Memphis Express" 613 - 4-6-0 Locomotive 415 - Express Car 31 - Mail Car 321 - Baggage Car 960 - Coach 1027 - Coach WAB 2 - Wabash Official Car 609 - Diner-Buffet I'd have to presume that the Frisco business car was for officials travelling overnight from Memphis to St. Louis for an early-morning arrival. The Wabash official car's presence on a foreign road is intriguing to me. Also noticeable is the absence of a diner-buffet on "Memphian." Not surprising considering that most passengers would be presumably asleep on the overnight run. I'll look forward to any other observations that others may have.
Thus as we practice in the model world, it is necessary for all members of the train crew; Conductor, Engineer, and Fireman to read and understand their orders when operating under Timetable & Train Orders.