Names
- Michigan Air Line Railroad Company.1
- Michigan Southern and Northern Indiana Railroad Company.1
- Monongahela Railway Company1
- Muskegon, Grand Rapids and Indiana Railroad Company.1
- New York Central Railroad Company1
- New York Central Railroad Company.1
- New York Central and Hudson River Railroad Company.1
- Northern Central Railway Company1
- Penn Central Transportation Company.1
- Pennsylvania Company1
- Pennsylvania Railroad Company1
- Pennsylvania Railroad.1
- Pennsylvania-Reading Seashore Lines1
- Pere Marquette Railroad Company1
- Pere Marquette Railway Company1
- Philadelphia, Baltimore and Washington Railroad Company1
- Pittsburgh and Lake Erie Railroad Company1
- Pittsburgh, Chartiers and Youghiogheny Railway Company1
- Pittsburgh, Youngstown and Ashtabula Railway Company1
- Richmond-Washington Company1