Gadget and Radcliff:
I'll buy the first round in Newcastle upon Tyne. Just have to find some misplaced ancestors.
To address Radcliff's question, I don't have a good answer. My guess is that it is not a match. JPS and his wife Mary had 4 sons that I know of. Richard (1873), William (1875), Edward (1882) and John (1885). I am not aware of an earlier son. I don't have the address from the census form but I would bet they are different. If you look at the cemetery listed in the death certificate summary on Family Search, it names C.C. I bet that's Cathedral Cemetery. For your ease of reference, all of these people lived immediately north of what is now the Philadelphia Museum of Art. Then, it was a reservoir. The Cathedral Cemetery serviced this area. That's also where JPS and Mary are buried. I'll check and see if any other Stephensons are there.