I'm researching Elizabeth Adcock and her husband John E. Adcock of next door Carroll County and originally Meriwether Co GA. For some reason, the name Best rings a bell. Sorry I am out of the country and am not near my files, but I THINK a person named Best was in the HH of one of my research targets in that area of GA during that time. I hope my memory is not mixed up.
Anyway, John E. Adcock died I think in the 1850s and his wife Elizabeth lived with their daughter, wife of Elijah Williams in Carroll County GA. I can't remember if John E. died in Meriwether or Carroll (sorry). Anyway, you might want to check the census for John E. Adcock and then Elijah Williams in the 1850 and then 1860 (for Elijah). Because I am certain I remember a Best in one of the households.