The Ohio and Pennsylvania Railroad was chartered in Ohio on February 24 and in Pennsylvania on April 11, 1848, to build from Allegheny City (annexed by Pittsburgh in 1907) west to Crestline, Ohio, on the Cleveland, Columbus and Cincinnati Railroad. It was organized on June 15 with William Robinson Jr. as president,[1] and construction began on July 4, 1849. The first section, from Allegheny City west to New Brighton, opened July 30, 1851.