I'm a native Athenian and still live near there. Unfortunately, I don't have the GPS cooridinates and the cemetery is difficult to get to simply because you have to drive on a lot of dirt backroads. It's also easy to drive right by during this time of year because it's covered in thick vegetation. It would be better to go there in the late Fall. I have many photos of it that I would be happy to share with you. You can email me at the email address that you see associated with my name.
I will be looking forward to hearing from you. Sandy