Thanks to a "genie" friend, I received an article on Park's Mill written in 1960. Turns out the PARKs family owned land in both Greene County and Morgan County. The lands were separated only by the Oconee River. For the person who wrote me an email saying there was a PARKs Mill in PA, there may be some connection between the two. The Mill in GA, established in 1821, was on Seven Islands Road, which went from New Orleans to Philadelphia. Maybe one of the PARKs sons or sons-in-law established the PA Mill? Thought you might like to know...