As we all know Delmarva lacks stone, so it should come as no surprise that early grave markers were wood, usually cypress. Even cypress eventually succumbs to the elements and disappears. The early markers have all but gone. Some were replaced with stone when the monument carvers begin to move into the area about the 1860s. One of the last ones is out at Kings Church on Gordy Road between Whitesville and Salt Barn Road.
The marker is so weathered you can not make out any lettering.
There may be a record as to whose grave this is but at the moment I am too lazy to investigate and find out.