Periodicals Index - Allows searching by keyword, publication name, year of publication, etc. To date contains the following periodicals:

The Keystone, published by the Pennsylvania Railroad Technical & Historical Society .

The Keystone Modeler, published by the Pennsylvania Railroad Technical & Historical Society .

Pennsy Journal, published by Bob Reid, 1981-1984.

Rails Northeast, published by Bob Reid, January, 1976 thru August, 1984. Issue count begins at #19, following its predecessor publication PC Railroader.

Index to The Pennsy, published by the railroad for its employees. Many issues available online.

The Model Train Magazine Index  - Presented by Kalmbach Publishing. Contains over 23,000 entries from Model Railroader, Railroad Model Craftsman, Narrow Guage & Short Line Gazette, Railmodel Journal, Mainline Modeler, Model Railroading, Railroad Modeler, Prototype Modeler, and N Scale.

Rob Schoenberg's PRR Bibliography  page.