 That was 70 years before the Emancipation Proclamation. Two years ago, 91 graves of descendants of the formerly enslaved were identified here. This device is ground-penetrating radar, and it will reflect off of any hard objects such as a coffin or remains. Matthew Turner's using it over recently cleared ground looking for more graves. We have a headstone here. We have another possible one there. I'm going to go over that again.