skos:altLabel | - Pennsylvania
- railways
- railroads
- Pennsylvania Lines
- Penn Central
- Pennsylvania Railroad Station
- Philadelphia, Baltimore & Washington Railroad
- electrification
- PRR
- Ohio & Pennsylvania Railroad
- Pennsylvania Railroad Company
- electrification project
- keystone
- electrification program
- 1968 merger
- ;Pennsylvania Railroad
- Delaware Railroad
- Fort Wayne shop
- PRR's
- PRR-Style compound catenary system
- Penn Jersey Rail Lines
- Pennsy
- Pennsylvania Central Railroad
- Pennsylvania R.R. Co.
- Pennsylvania RR
- Pennsylvania Rail
- Pennsylvania Rail Road Company
- Pennsylvania Railroad (PRR)
- Pennsylvania Railroad Co.
- Pennsylvania Railroad Corporation
- Pennsylvania Railroad system
- Pennsylvania Railroad's
- Pennsylvania Railroad's low-grade lines
- Pennsylvania [Railroad]
- Pennsylvania and Mahoning Valley Railway
- Pennsylvania and New York Railroad
- Pennsylvania and Newark Railroad
- Pennsylvania and Ohio Electric Railway
- Pennsylvania – New Jersey Railway
- Pennsylvania Railroad
- The Pennsylvania Railroad Company
- Trenton Cutoff
- electrify its main line
- position-light signal
- the Pennsylvania Railroad
|