Rail cars at Promontory

From: bf-bird@sbcglobal.net

As a model railroader I have some questions regarding the Transcontinental Railroad at Promontory Utah, 1869.

Is it true the C.P.R.R. had only two passenger cars, a coach and combine?

How many passenger cars did the U.P.R.R. have? What was the make-up of the cars – coach, baggage, combine?

What were the authentic colors of the passenger cars for each railroad? This one is important to me as I am duplicating these two railroads and I would like to be as accurate as possible.

—Barry Bird