John, thanks for the map. I thought the first train might be from Baltimore, but the other two had run-through feels to them as they sat at Landsdowne for recrews for almost an hour. You were corect on the Chicago destination. Here is the information I got from someone on another forum for future reference:
K497 - Oak Island to Chicago/CN
K479 - Oak Island to Bensenville/CP
K481 - Oak Island to Chicago/ICE
Bob, the ethanol trains that go through St. Denis bound for SMS at the Pureland Industrial Center are K420 through K435.