Pittsburgh, Harmony, Butler and New Castle Railway

The railway was developed by business partners Russel H. Boggs and Henry Buhl as an adjunct to their department store in Pittsburgh. Mr. Boggs already had a business relationship with many of the farms between Evans City and Pittsburgh and proposed exchanging the right of way across their land for one dollar, a guaranteed trolley stop and an electricity supply.[2] A first step in consolidation of 11 small railways into Harmony, Butler and New Castle Railway happened when the corporation was formed in 1906. The new corporation officers were President Stanley C. Vickers; vice President Harry Ethridge; Secretary, E.M. Baisinger; Treasurer, Mark G. Hibbs, all of Pittsburgh.[3] The first trolley ran to Ellwood City on July 2, 1908. At the southern end of the line Pittsburgh Railways took over the trolley for the run into Pittsburgh, as the final few miles was over their rails. In 1914 an extension along the Beaver Valley was opened. This left Ellwood City heading south west and crossed the Beaver River on Koppel Bridge which was built for the purpose. This bridge also carried vehicle and pedestrian traffic and was subject to a toll.

In 1917, the railway amalgamated with the Pittsburgh and Butler Street Railway, who operated the Butler Short Line between Pittsburgh and Butler, the new company being named the Pittsburgh, Mars and Butler Railway.[4] The new combined system had a length of 118 miles (190 km).[5] In 1922 the railway formed the Harmony Short Line Motor Transportation Company to carry freight between Bakerstown, and Butler. Bus services were introduced in 1923 alongside the Beaver Falls line, with Ellwood City and New Castle being added in 1924 and Butler to New Castle in 1925. Over the next 5 years further services were added, supplementing and paralleling trolley lines.[6]

In April 1931, the company went into receivership. The Butler Short Line was closed on April 22, 1931[7] as it was in poor condition, services being absorbed into the existing PA 8 bus service. Beaver Falls – Ellwood City – New Castle services were replaced by buses on June 15, 1931.[6] The remaining lines were replaced by buses on the same day, with the final trolley running on August 15, 1931.[2] The stub of the Butler Short Line continued to be used by Pittsburgh Railways as the 2 Etna service until closure in 1952.[8]