Rail Travel in 1903 to San Francisco

From: "JOHN MEADOWS" johnmeadows851@btinternet.com

I'm researching the route my Great Aunt Harriet Wiltshire would have taken after landing at Ellis Island New York in 1903. She arrived on the SS Celtic from Liverpool, England bound for San Francisco.

Understanding that the Panama Canal did not open until 1914 I am assuming that she would have used the Central Pacific railroad to get to San Francisco. Is this the route taken by most immigrants at that time? Can you please give me any further information relating to travel on your railroad in 1903 to this destination. ...

—John Meadows, Sandhurst, Berkshire, England