When I took this photo in November, 2010, I was intrigued by the carved symbol. The gravestone belongs to Willie Beane, young son of Frederick and Elizabeth (Walley) Beane. He was about one and a half years old when he died. He and his family are buried in a secluded rural cemetery.
There are often engravings on gravestones, especially for children. This one shows a sad child playing a tiny harp. The harp often means "praise".