Beginning in 1911, the ICC classified operating companies on the basis of operating revenues. ... Before 1890, the principal source of continuous information on railroads is the annual Poora#39;s Manual of Railroads. ... Western) and 6 western roads (Illinois Central; Chicago and Alton; Chicago and Rock Island; Chicago, Burlington and Quincy; Chicago and Northwestern; Chicago, Milwaukee, and St. Paul).
|Title||:||Historical Statistics of the United States, Colonial Times to 1970|
|Author||:||United States. Bureau of the Census|