|
3
|
|
|
|
1
|
|
4
|
|
|
|
1
|
|
5
|
|
Pennsylvania Railroad -- Employees -- Biography. / https://id.loc.gov/authorities/names/n82258320 https://id.loc.gov/authorities/subjects/sh00002753 https://id.loc.gov/authorities/subjects/sh99001237 : Hofsommer, Donovan L.,
|
2016
|
1
|
|
7
|
|
Pennsylvania Railroads : Hare, Jay V.
|
1966
|
1
|
|
10
|
|
Pennsylvania Railroads History 19th Century : Arnold, Andrew Bernard,
|
2014
|
1
|
|
11
|
|
Pennsylvania Railroads Local And Light History : Bezilla, Michael,
|
2017
|
1
|
