Navy Yard on the Delaware River (Picturesque America)
Plan of Philadelphia, John Hills, 1796
Philadelphia Navy Yard, July 1872
Typhoid Fever and sewage tainted drinking water: An 1889 report from the Philadelphia Board of Health
Kensington Water Supply in 1883
Dock Creek Sewer in 1849: A report on its condition made to City Councils
CITIZENS’ BUSINESS: 1939-1946
High Water: Flooding in Philadelphia