Passenger train service, c. 1890-1910

From: "Kathy Veasey" kathy.veasey@gmail.com

I am looking for historical documention of passenger train service between West Virginia and northeastern Oregon, 1890-1910. I have learned that B & O ran from West Virginia - but that passengers would have to transfer at least once to another line before reaching their destination. What other lines were active at the time in question? Would Chicago, or what other city be the most likely transfer point?