A few years ago I stopped in at the office at St. Peter's Cemetery on Route 57 going into Oswego, and the staff were very helpful. They printed out a list of relatives and a map telling me how to find the sites. There were two distant grandparents who were buried in St. Paul's Cemetery for whom there were no headstones, but when I arrived I found that they were buried in a family plot with the family headstone close by. Good luck to everyone who is looking.