ogaugenut posted:Would it be prototypical for an Allegheny to be pulling hoppers painted with Chessie rather than C&O?
No.
I suspect that the Allegheny was retired before the Chessie markings came out.
Absolutely correct. The C&O was done using ANY steam locomotives by about 1959.
What hopper markings would the Allegheny have actually pulled?
C&O, i.e. Chesapeake and Ohio.
Any other road names involved?
Occasionally some other eastern roads, however most of the coal being shipped to eastern ports was carried in only C&O hopper cars.
Thanks
Bill