Pennsylvania Route 19 was a state highway

State highway

State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...

 in the U.S. state

U.S. state

A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 of Pennsylvania

Pennsylvania

The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

. It ran from Lewistown northeast to the Delaware River

Delaware River

The Delaware River is a major river on the Atlantic coast of the United States.A Dutch expedition led by Henry Hudson in 1609 first mapped the river. The river was christened the South River in the New Netherland colony that followed, in contrast to the North River, as the Hudson River was then...

 across from Narrowsburg, New York

Narrowsburg, New York

Narrowsburg is a hamlet in Sullivan County, New York, United States. The population was 414 at the 2000 census.Narrowsburg is in the western part of the Town of Tusten at the junction of Routes 52 and 97...

, and became parts of U.S. Route 522, U.S. Route 11, and U.S. Route 106 in the 1928 renumbering.

Spurs off the former PA 19 - PA 139, PA 239, PA 339, PA 439, PA 539, and PA 639 - were numbered as PA 39; several three-digit numbers ending in 19 were already used by U.S. Routes (US 119 and US 219).