The Pittsfield and North Adams Railroad was a railroad based in northwestern Massachusetts. It was chartered in 1842 and was purchased by the Western Railroad of Massachusetts before construction was finished in 1846, then acquired by the Boston and Albany Railroad in 1870, only to face a gradual demise between the 1960s and 1990. It ran 18.539 mi (29.836 km) from North Adams Junction in Pittsfield to North Adams, where it connected to the Troy and Greenfield Railroad, an affiliate of the Fitchburg Railroad.

The New Haven and Northampton Railroad (founded as the New Haven and Northampton Company, also known as the Canal Line) was a railroad originally built alongside a canal between 1847 and 1850 in Connecticut.

The Cumberland Valley Railroad (reporting mark CVRR)[1] was an early railroad in Pennsylvania, United States, originally chartered in 1831 to connect with Pennsylvania's Main Line of Public Works.

The Pittsburgh, Cincinnati, Chicago and St. Louis Railroad, commonly called the Pan Handle Route (Panhandle Route in later days), was a railroad that was part of the Pennsylvania Railroad system.

The Pennsylvania Railroad had a total investment of $5,633,000 in the three companies, decided to consolidate the Panhandle, the Steubenville and Indiana and the Holliday’s Cove Rail Road into one company with a line from Pittsburgh to Columbus, a distance of 193 miles. It caused The Pittsburg, Cincinnati and St. Louis Railway Company to be organized on May 14, 1868, and the three predecessor companies were thus consolidated. The new consolidated company continued to be known colloquially as the “Panhandle”, by which name it and its successors will hereafter be frequently referred to.