The pipe beneath the rocky path
Fairmount Water Works in High Resolution
Sandy Run Watershed and the Holmesburg Water Works
Fairmount Water Works (Picturesque America)
Plans and maps of the Pennypack Creek Watershed in Philadelphia
Newspaper Clipping Scrapbooks of Frederic Graff Jr.,Chief Engineer of the Philadelphia Water Department: Part 1, 1854-1857
Newspaper Clipping Scrapbooks of Frederick Graff Jr., Chief Engineer of the Philadelphia Water Department. Part 2: 1858-1871
Requiem for a stream: Adams Run in Oak Lane
