Very good but I have to be Mr.Pedantic. Even though they ran on a catenary they wouldn't be considered interurban. They are commuter suburban trains that shared a four track line between NYC and Wilmington,Delaware with long distance trains and freights. Interurbans ran on streets and private right of ways and had trolley poles rather than pans. Pacific Electric,Red Arrow and South Shore ran interurbans. Sorry for the rant but I live in the area.