Trains in 1920

From: "Heesoo Kim" danchung811@gmail.com

... I am doing research in history, and looking for the answers to the following questions. I wonder if you could help me with these. (Union Pacific recommended me to contact you.)

(1) In June 1920, was there a sleeper train, going from Washington DC to San Francisco?

(2) Train between Chicago and Sacramento in Jun 1920.

(2a) How many services per day were there, that could be used to go from Chicago to Sacramento?

(2b) Can I get the departure times from Chicago, headed for Sacramento?

(2c) How many days did it take back then from Chicago to Sacramento? ...

—Heesoo Kim