You can trace your ancestry at several research sites listed below.
More specifically, if you are researching African American heritage,
below is a list of the African American cemeteries that you can visit in the area.

While walking through an African American cemetery, be sure to look for the yucca plants;
these were often planted because they were believed to keep the spirits in the cemetery.
You won’t find many, if any, stone markers for slaves and any wooden markers
have long since deteriorated. It was customary for graves to be laid east to west
and for the bodies to face sunrise.