Received an e-mail from Joe Halford today which might have solved this question:
"I found your inquiry about the Moody Cemetery on an old Rootsweb forum on Barnwell County.
There are several Moody graves in an old cemetery that my family has called the Halford Cemetery. I had a hard time finding it, but finally did. It is within the fence of the Barnwell County Airport. This airport was a military airfield during WW2. The military did not disturb the graves and there have been a few funerals there after the war. One of my great uncles was married to Augusta V. Moody in the 1800s. They died in 1910 and 1924 and are both buried in this cemetery. There are several Moody family members buried in this location. This cemetery is very hard to find on your own, but personnel at the airport can take you right to it."