York–Dauphin is part of the Frankford Elevated section of the line, which began service on November 5, 1922.

[1][4][5][6] On December 26, 1961, two cars were wrecked in a derailment at the York-Dauphin Station, killing one passenger.

The accident occurred on the curve, at York and Front Street, right before the York-Dauphin stop, just north of the station.

The accident had occurred during the Budd Company's replacement of the original 315 Market–Frankford Line cars with 270 new ones.

There is also an exit-only staircase from the eastbound platform to the southeast corner of York and Front streets.