State Sen. James P. McNichol
Rudolph Hering
Philadelphia Water Department chief engineer John Trautwine Jr., 1890s
Outhouse over the Schuylkill near Pottstown
Nine visiting nurses ready for work, ca. 1909
Bureau of Water Spring Garden Testing Station, 1901
Front St. and Market St., 1881
Immigrant family, ca. 1900, nurse in black
Duplex Pumping Engine, Belmont Works
Engine House of the Belmont Works