The easy answer comes from a book in Bethel’s library: The Cemeteries of Leon County Fla., compiled and published in 1978 for the nation’s bicentennial by local historian Joy Smith Paisley. According to it, the 1826 birth year of Elizabeth Barineau is the earliest date on any monument. The earliest date of death is Aug 20, 1877 for Florence L. Crowder, the 3-year-old daughter of A.H. & M.A. Crowder. I leave you the task of locating the markers on which these dates are found. Of course many of the graves are unmarked.

(You can find out more about this in the "Cemetery Records" on the History page of Bethel's web site.)