I find only two plates in the OR Atlas, 59-2 and 61-11, called Skirmish, Ruff's Mill, July 4, 1864. Unfortunately these are very large scale maps with no feel for the area. No Confederate units are identified, only that of the Confederate lines.

Neither of the two West Point Atlas's depict this affair.

Plate 62-1 shows Ruff's Mill to be just to the West of Bolton and Fulton. Believe the present Aunt Fanny's cabin to be in the vicinity.

George Martin