I have relatives who are buried at a graveyard on Eglin AFB. I recall he was born in 1791. The Air Force keeps the graveyard up as I recently saw a photo of the grave site.
Unfortunately you are required to be accompanied by two officers if you visit.
Eglin is the largest (land area) military base in the world.
It was there that they did the first explosive test on the 30,000 pound (MOAB) bomb. They say, only those involved in the testing heard it. That's how big it is. On the Florida map, it looks like a county in size.