During the more than half-century timespan of the original station under owner Pennsylvania Railroad (1910-1964), hundreds of intercity passenger trains arrived and departed daily, serving distant places such as Chicago and St. Louis on "Pennsy" rails, and beyond on connecting railroads to Miami, Florida, and the west. In addition to the Long Island Railroad, other lines using Pennsylvania Station during that era were the New Haven and the Lehigh Valley Railroads. For a few years during World War I and the early 1920s, arch rival Baltimore and Ohio Railroad passenger trains to Washington ,Chicago, and St. Louis also used Pennsylvania Station, initially by order of the USRA, until the Pennsylvania Railroad terminated the B&O's access in 1926. The station saw its heaviest usage during World War II. It was torn down in 1964.