After pulling together a list of John and Susan Gough’s 1860 census neighbors and cross-checking them against the 1860 and 1861 city directories to get their addresses, it was clear that city officials had changed the names of quite a few of the streets in the older parts of town since they couldn’t be located in a search of online maps.
So it was time for an internet search to see what old maps of Philadelphia might be out there. Fortunately, there are a lot out there! This one, for instance, was very helpful in identifying the streets in the ward where John and Susan lived (Ward 2):
