State Sen. James P. McNichol
Philadelphia Water Department chief engineer John Trautwine Jr., 1890s
Nine visiting nurses ready for work, ca. 1909
Immigrant family, ca. 1900, nurse in black
Old Rosin the Beau, title page, 1838
Schuylkill steamship excursions ad, 1852
View of Fairmount Water Works, ca. 1827
Penn landing at Chester (Watson’s Annals)
Northeast Sewage Plant opening, 1951
City officials tour new interceptor sewer, 1953