[2] Built as a suburban villa in 1760, in what is now the Nicetown neighborhood of the city, Hatfield House operated as Catherine Mallon's Boarding School for Girls from 1806 to 1824.

William J. Hay, who was the next owner, subsequently made major Greek Revival-style alterations, including the addition of the unusual 5-column temple portico in 1838.

[3] In 1854, Dr. Nathan L. Hatfield, of the University of Pennsylvania, bought the residence; it then remained in the possession of his family for seventy-five years.

Four years later, Major Henry Reed Hatfield donated the house to Fairmount Park Commission.

[7] In 1930, the building was dismantled and moved one story at a time to its present site at 33rd Street and Girard Avenue.