Penn landing at Chester (Watson’s Annals)
Pegg’s Run, Northern Liberties (Watson’s Annals)
Penn Landing at Blue Anchor, from Watson’s Annals
Caves and inhabitants on the Delaware River, Watson’s Annals
Swimmers at Pier 126, Delaware River, July 15, 1918
Allegheny Avenue Sewer at Pier 126, 1918
Pennypack Sewage Treatment Works, 1914
Sewer construction, Rock Run, 1922
Torresdale Conduit work gang, 1906