You said that Ben and George are brothers. So Ben is your dad's brother, not his uncle...
I agree with Peter that the cost of DNA testing is very inexpensive. I realize that many people have limited income, but the test truly is reasonably priced. DNA testing is a way to prove ancestry when no paper trail can be found. This is very helpful with all of the records that 'Firebug Sherman' burned in his travels through the South, as well as the women whose maiden names we don't know that are our grandmothers (going back many generations).