By A Mystery Man Writer
FM Erie-Built Locomotives: Specs, Roster, History
Pennsylvania Railroad - Professional Model Trains
Pennsylvania Railroad 460 - Wikiwand
Pennsylvania Railroad - Best of Bill Volkmer Volume 4 – Morning Sun Books
Richard Leonard's Fantasy Steam Page - Imaginary Locomotives that Were Never Built
Pennsylvania Erie-builts ?(RESULTS!)
Steve Mallery's PRR Buffalo Line - Railroad Model Craftsman
O Scale – tagged erie – MrMuffin'sTrains
MODELING: FM Erie-Built Beasts
Pennsylvania Railroad Class GEW275 No. 4648, Locomotive Wiki
The Erie-Built Diesel O Gauge Railroading On Line Forum