Plainfield

West Pennsboro Township

Conodoguinet Creek, Heishman's Mill, near West Hill.

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.