Ambrose Brewer's grave is located on top of a mountain ABOVE a cemetery.
It is easiest to find if you are traveling west on Cool Brach Road from the church.
Just after you make a left hand curve, you will see a small gravel road intersect with Cool Branch Road.This road runs up a steep hill parallel with Cool Branch Road.There is a cemetery up there that you can see from the main road.
If you reach a car repair garage on the left side of Cool Branch Road, you have gone too far.
Go behind the cemetery and up the mountain (you will have to walk, and it is very steep.)