The 'Big Four' - After the last spike

From: "Joshua Dyer" drumjedi76@gmail.com

I am researching the Big Four for my upcoming novel series on them, and I'm having a problem. I have gathered a sizeable about of information on them and the TCRR / CPRR / UPRR up to its completion, but not much on their lives afterward. Do you have any resources or sites that I could use to research what the Big Four did after the railroad was finished? I've got some sparse data from their bios, but little else. ...

—J. E. Dyer