If we have a "candidate" planter -- right name, right era, and died in VA -- we should add them to the project. If the profile has an active manager, or better yet, a curator manager, we can engage them in conversation about their sources and perhaps get missing documentation that way.
If we can't prove within 70-80% probability, we removed the profile and add a note in overview that this person is probably not an Ancient Planter -- keeps us or anyone else from re-adding to the group. If we can get above 70% certainty, we make a curator note that this profile is possibly of an ancient planter. If we are 95% certain, we make the MP and call him an ancient planter.