Conyers Cemetery

We were unable to find much about the inhabitants of the Conyers Cemetery near Mount Pleasant. Though we were intrigued by the name, "Gov. Garland", it's pretty clear that "Gov." was a nickname Bill Garland took-on because of the governorship of Augustus Garland.
We also wonder if the site of this cemetery might rest near the site of an earlier Native-American burial ground because of the thong tree growing nearby.
Again...we could find nothing about Mordecai Conyers, the oldest birthdate displayed, though we know he was an early pioneer of the county.