Modern day map of Montgomery County, PA showing the Goshenhoppen Churches, Skippack and Pennypacker (Pannepacker) Mills environs where the early Pennebakers/Pannebeckers eventually settled. Upper Hanover Township is in the most northerly corner of Montgomery County, PA. They immigrated initially to the Germantown settlement near present day Philadelphia, PA. This site is just off the map in the southeast corner. Montgomery County was created by an Act of the Pennsylvania Assembly on September 10, 1784, out of part of Philadelphia County. Norristown became the County seat.