The village of West Hill is located one mile west of Plainfield on Route 641 in West Pennsboro Township. The 1872 Atlas of Cumberland County shows the village consisting of six houses, a Methodist Episcopal Church, two stores, and a blacksmith shop.
In 1812, tavernkeeper Michael Forner laid out lots on a piece of land on the road from Carlisle to Newville. He called the new town Plainfield. Plans were afoot for a Grand Turnpike from Harrisburg to Pittsburgh, and Forney thought it "would more than probably go through his new town."It did not. Often referred to as Smokey Town, the name Plainfield was officially adopted with the opening of the Post Office. The map of Plainfield in the 1872 Atlas of Cumberland County shows the locations of the shops, two churches, the school, the hotel as well as the houses. Plainfield grew, and by 1910, the village had approximately 200 residents.
In the spring of 1900, Commodore Porter of Plainfield, had recently finished his twentieth sale of the season. A Chambersburg newspaper reported that he was “in his sixty-fourth year and is still hale and hearty and hopes to call many more sales.”1 It was not to be.
The recorded history of West Pennsboro Township began in 1735 when it was part of Pennsborough, one of two original townships in the North Valley. This preceded the formation of the county by fifteen years. By 1745, Pennsborough had divided into East and West Pennsboro. In the following years, the township boundaries changed as the population increased and the townships subdivided even more.