I have few family links to the BALLS but once several years ago a woman living in New Orleans wrote to me and explained she was from this family- "Ball " by birth and she had an Atwell ancestor buried nearby in Fonthill . I never made the connection to my surname. Oddly I did find that I have a DISTANT connection to the comedian Luciel BAll (I love Lucy)her family tree is on the net.
You can view the Ball's Mill at this site.
http://www.mestern.net/festivals/ballsfalls/ballsf.html
I enjoy visiting this place. I am however very tied up with my own self serving Genealogy and I cannot spend much time on this as I know the Family has much historical materials written about them. If you search for UEL (Loyalists) materials I am sure they have extensive materials. If you hit some dead ends and need some Field Work I would be happy to visit the place for Photographs or the like. Really if you find a complete family tree let me know I am sure they tie into my extended family tree someplace!