The farming land that would be developed into Penfield was originally owned by Clifford Burke Harmon. The Penfield development coincided with the farmlands of Henry C. Terry, shortly before sale of the land around 1900. The development of Penfield began to be planned in 1907 when the Philadelphia and Western train brought service from 69th street to Norristown.
Clifford B. Harmon was a wealthy real estate developer and aviator, founding the International League of Aviators. The development of Penfield was well underway by 1910. Penfield is located right next to the
Grange Estate,
Lawrence Cabin, and
Nitre Hall. All three notable historic properties are in the Karakung Valley, also known as Powder Mill Valley. Penfield is served by the
Haverford Township School District, Haverford Township Police Department, and the Brookline Fire Station. Its nearest transit stop is
Penfield Station on the
M Line. == Demographics ==