Have you been to the Humble Cemetery?

Unfortunately, I don't have a precise location for the stones. What I can tell you is that if you turn in the most westerly part of the u-shaped road, the section to the west, or on your right hand side, is newer, and they wouldn't be there. The section on the left is the older section. The section at the back, south of the road an the African-American section. The section going down the hill, furthest east, is also an African-American section. So hopefully, this will help limit your search when you get there.

Sorry I couldn't be more helpful.

Lynn