My Reuben is an enigma. I reached a point where I have to go to the libraries in the area personally to go any further. So I quit the research for awhile. (I live a couple states away) Most of my info on Reuben came from family also.
He was mentioned in the book "Wayfarers in Walton" by Anita Sams (I went to Dahlonega last year and they did have that book in their library) I don't know what happened to Reuben after this period. The Walton war pretty much ended with the disputed strip of land being divided up by 3 states and Old Walton County was no more.
There was a website online (it's been awhile since I've been there so I don't know if it's still there.