The Pennsylvania Railroad (PRR) significantly expanded its infrastructure in the early 1900s to handle growing volumes of both freight and passenger traffic.
Norfolk Southern Railroad
The township of Middlesex lies along the northerly half of the west side of the Stony (“Stoney”) Ridge, a geological trap dike (older than the North or South mountains) which formed the original boundary between the west and east divisions of Pennsborough Township (established in 1735) as early a
Southampton Township was formed in 1783. It rests at the south-west corner of Cumberland County and is bordered by Franklin and Adams Counties. The southern part of the township nestles against South Mountain and is currently zoned for Woodlands Conservation in order to preserve the forests.