Sandy Run Watershed and the Holmesburg Water Works
Roberts Mill, Wingohocking Creek, 1871
Schuylkill River at Rockland Landing (Picturesque America)
Wingohocking Sewer across Penn St.
History of Belfield (1934)
19th century life in South Philadelphia’s marshland
Schuylkill River Hydrographical Survey 1861-66 by H. P. M. Birkinbine