Grand Central - IRT elevated station - ended in 1923.
Grand Central - IRT elevated station - was created in 1878.
Grand Street - IRT Sixth Avenue Line - ended in 1938.
What happened to Lisa on IRT
IRT Powerhouse was created in 1904.
IRT Flushing Line was created in 1915.
IRT Pelham Line was created in 1918.
IRT Dyre Avenue Line was created in 1941.
IRT Eastern Parkway Line was created in 1908.
IRT New Lots Line was created in 1920.
IRT Sixth Avenue Line ended in 1938.
IRT Third Avenue Line was created in 1878.
IRT Third Avenue Line ended in 1973.