Manhattan Transfer was a passenger transfer station in Harrison, New Jersey, east of Newark, west of New York Penn Station on the Pennsylvania Railroad (PRR) main line, now Amtrak's Northeast Corridor. It operated from 1910 to 1937 and consisted of two car-floor-level platforms, one on each side of the PRR line. It was also served by the Hudson and Manhattan Railroad. There were no pedestrian entrances or exits to the station, as its sole purpose was for passengers to change trains. History Need and operation Until 1910 none of the railroads that crossed New Jersey to reach New York City crossed the Hudson River, but had terminals on the Hudson Waterfront, where passengers boarded ferries. The dominant Pennsylvania Railroad was no exception; its passenger trains ran to Exchange Place in Jersey City. On November 27, 1910, the PRR opened a new line, the New York Tunnel Extension, that branched off the original line two miles east of Newark. The line ran northeast across the Jersey Meadows to a pair of tunnels under the Hudson River to New York Penn Station. The new line included the Manhattan Transfer station, just west of the split from the original main line. Passenger trains bound for New York Penn changed at Manhattan Transfer from steam locomotives to electric locomotives to run through the tunnel under the river. Passengers could change trains at Manhattan Transfer; riders on the main line could transfer to local trains to Exchange Place, where they could catch ferries or Hudson and Manhattan Railroad (H&M) subway trains to 33rd Street Terminal in Manhattan, and riders from Exchange Place could change to PRR main line trains. The H&M, the precursor to the PATH train, started running trains between Hudson Terminal in Manhattan and Park Place in Newark on October 1, 1911. H&M trains stopped at Exchange Place, Grove Street, Summit Avenue, Manhattan Transfer, and Harrison. Afterward, H&M trains stopped on the outer tracks of the two Manhattan Transfer platforms, allowing passengers to transfer from Penn-Station-bound trains. H&M trains also carried mail bound for PRR trains, retrieving first-class letters sent from the Church Street Station Post Office, near Hudson Terminal, and transferring the letters to PRR trains at Manhattan Transfer. The H&M ordered MP-38 railcars to run this special service, in partnership with the PRR. The "McAdoo Reds", as the MP-38s were called, ran only between Manhattan Transfer and New York City, carrying