According to pages 104and 106 of the 2nd Edition of TRAIL OF THE HAGLERS the old cemetery is in a grove of trees atop a small knoll in a pasture about 1 mile east of Barbour County road 33. Access is via a farm road from a point on BCR 33 1.5 miles north of State Road 10.
According to the 1983 map of Barbour County, AL. if one proceeds north on county road 33 from #10 there is Tyler Crossroads. I expect that in that area would be a good site for a country store and the locals whoare hunters could be more precise as to the exact location of Peter Haglers grave.