Two headstones, the original with no information, a second and newer but still too old and faded to read.
Dated 1856 it is not the oldest, but the cemetery district was just officially recognized by Charleston a few years earlier.
I had never noticed these two since they were close to the old house. IDA may have been buried on the original Umbra Plantation property. There is a small stone somewhere here dated 1800, this was definitely an old member of the Umbra plantation.

It seems almost sad when you see gravestones like that.
I agree, and we have them all around here. In the small unknown cemeteries local people tend to maintain them though. There are a lot of small spots that turn out to be places where enslaved people were buried. Another dark side of our local Charleston history.