State of the Schuylkill River in 1876: Sewage pollution and possible remedies
Down Under!
The Sad History of Frankford Creek
Two reports on the state of the Schuylkill River, 1867
Streams, islands, and ferries of early Philadelphia
Schuylkill Navigation Company Scrapbook
Dauphin and Sydenham car crash, Jan. 17, 1978
Half a Century of Clean Water
Thomas Run sewer outlet at Cobbs Creek
Schuylkill River Hydrographical Survey 1861-66 by H. P. M. Birkinbine