Dispatcher Sheets
BN Avard Hugo 11-19-1983
BN Chicago 5-30-1984
BN Hannibal First Sub 3-11-1981
BN Hannibal Second Sub 4-2-1981
BN Hannibal Sixth Sub 3-7-1981
BN Pensacola Mobile 12-6-1983
Other Sources
Train Briefs (freight schedules) are available from the Pacific Northwest Railroad Archive for 1970 and 1979. Another book from 1976 covers the Pacific Northwest area.
John Carr’s CarrTracks has great BN symbol histories for each train number.