Wissahickon Creek near the Paper Mill Bridge (Picturesque America)
Drive along the Wissahickon Creek Vallley (Picturesque America)
You would not have wanted to drink it: Philadelphia’s water supply in 1884
Plans and maps of the Pennypack Creek Watershed in Philadelphia
Map Lovers’ Monday: 1896 Suburban Transportation Map
Mount Moriah Historic Cemetery and Arboretum
Wingohocking Sewer across Penn St.
History of Belfield (1934)
Frankford Creek Watershed: A historical overview of the Philadelphia section
Report on channelization of Frankford Creek for flood control (1947)
