The West Jersey and Seashore electrified its Camden-Glassboro-Newfield-Atlantic City line in 1906 with a third rail system. With the 10 mile spur from Newfield to Millville, it was the longest electrification project in the country. Gloucester City (bordering Camden) had many grade crossings and mandated that trolley wire be used instead of third rail within city limits. Express trains would coast through Gloucester (4.5 miles); locals' conductors would raise the trolley pole on the fly.
This was the WJ&S alternate route from Camden to Atlantic City; its primary route was via Winslow Junction and Hammonton, presently operated by PATCO from Camden to Lindenwold and by NJT from Lindenwold to Atlantic City.
The WJ&S became PRR, PRSL, CR, and Shared Assets.