Map Lovers’ Monday: Philadelphia in 1957, according to the Pennsy
Plans and maps of the Pennypack Creek Watershed in Philadelphia
Early photographs of Fairmount and vicinity, 1848
Frankford Creek Watershed Historical Timeline
Drawing Dock Creek
Overbrook, as it was. A brief history of the Overbrook neighborhood of Philadelphia, focusing on changes in the natural landscape.
Newspaper Clipping Scrapbooks of Frederick Graff Jr., Chief Engineer of the Philadelphia Water Department. Part 2: 1858-1871
The Manayunk Expressway
Dock Creek Sewer in 1849: A report on its condition made to City Councils
High Water: Flooding in Philadelphia
