I think somewhere I came across a list (maybe at the Bureau Co. Genealogical Society? I can't remember) that did indeed suggest more people were interred that there currently are headstones. I don't know who every last person is, but Levi Long is the stepfather of Waitman Dunn. Mary S. Dunn is Waitman's wife. Jonathan Long is Levi Long's son and Helen Frazier Long is his wife. The whole clan originated from a part of Virginia that, I believe, is now in West Virginia. Waitman Dunn still has many descendants in the area.