If you go to familysearch.org, they have a database there called "Pennsylvania, Philadelphia City Death Certificates, 1803-1915."In it I found a 1902 record for Julia A. Smith, only it's not a true certificate, just an entry in a book.You can see the original entry, not just a transcription, if you login to the site (free with just a name and email address).There's also a 1909 death certificate for a James O. Smith.He didn't die in Philadelphia though, and whoever provided the information for him didn't seem to know much about him, probably got his birth year wrong (1823).He was however buried in Odd Fellows Cemetery, and so he may be your ancestor.There may even be a child of James and Julia who died in Philadelphia before 1915, and I would check for that.
By the way, I had a relative buried in that same cemetery, and this is what someone wrote about it on FindaGrave:
"Established March 24, 1849 at 23rd and Diamond Streets in Philadelphia, in 1951 [Odd Fellows Cemetery] was acquired by the City of Philadelphia in order to build the Raymond Rosen Housing Development. Some of the graves were moved to the Memorial Park section of Lawnview Cemetery, in Rockledge, Montgomery County, Pennsylvania, and some were removed to Philadelphia's Mount Peace Cemetery."