Subjects Urban Development

Houses on an abutment, from The Waffle

The Waffle: Water History Video 6

Photograph of Roberts Mill on Wingohocking Creek in Germantown, built in the late 17th century. (Photograph by J. C. Browne, 1871. Castner Collection/Free Library of Philadelphia)

Roberts Mill, Wingohocking Creek, 1871

Map of the County of Philadelphia from Actual Survey, 1843

Outline Map of the County and City of Philadelphia and Vicinity (wd000516)

Outline Map of the County and City of Philadelphia and Vicinity, 1883