One still slips in on occasion. I am doing better than the stone cutters. I highly recommend visiting the cemetery yourself if possible. A lot of times it is just something odd or altered or an error on the stone. But I have been known to miss on occasion.
Many cemeteries have many names.
The names may change as time goes on. For example, Folly Gap cemetery began as Galloway family cemetery until they built a church there. Some cemeteries got by more than one name at the same time. I list major names on the cemetery index. On the page itself I list allvariations I know of.