Two views on the water supply, 1939
The Schuylkill Navigation: A Journey on the Historic Nineteenth Century Waterway
High Water: An Informal History of Flooding in Philadelphia
History of Water in Roxborough: A talk by Adam Levine
Rebirth of the Rivers: Water History Video 3
Schuylkill River watershed, population in 1904
Map of Philadelphia Harbor, Delaware and Schuylkill, 1912
Cresheim Aqueduct
Street map of Reading, Pennsylvania, 1872
Fairmount Park topographical map, showing East Park Reservoir, 1872