sentences:  Reflecting its origin as the unintended product of the merger of two 19th-century narrow gauge railways, the meandering Ma and Pa line took to connect Baltimore and York, although the two cities are only apart in a straight line.Passenger service was discontinued on August 31, 1954, and the section from Baltimore to Whiteford, Maryland (just south of the Mason-Dixon line demarcating the Pennsylvania-Maryland border) was abandoned in June 1958.Most of the remaining original railroad line was abandoned by 1984.