Map Lovers’ Monday: Topography of Philadelphia from 1863
Map Lovers’ Monday: Schuylkill River from Wissahickon Creek to Norristown, 1913
Map Lover’s Monday: Fairmount Park, 1869
Dripps map of Frankford and vicinity, 1849
Plans and maps of the Pennypack Creek Watershed in Philadelphia
Drawing Dock Creek
Requiem for a stream: Still House Run in Manayunk
Two reports on the state of the Schuylkill River, 1867
