This account and what follows is drawn largely from Samuel Richey Kamm, "The Civil War Career of Thomas A. Scott," (Ph.D. Dissertation, University of Pennsylvania, 1940).
See also, Robert C. Angevine, The Railroad and the State: War, Politics, and Technology in Nineteenth-Century America (Stanford, CA, Stanford University Press, 2004), 133-34.
This argument while largely true had a caveat. A freight car on a long haul route would not be switched just once but potentially would be switched every one hundred miles or so at each divisional point.
William Z. Ripley, Railroads: Rates and Regulation (New York: Longmans, Green and Co., 1916), 101-103.
George H. Miller, Railroads and Granger Laws (Madison: University of Wisconsin Press, 1971), 109.