I have a Jackson George Allen b. 1823 TN with with brothers Hugh, Benjamin, Reuben, John William, James and Samuel all b. 1812 to 1826 in TN.Jackson George married Mary Johnston, dgt. of Thomas ohnston and Ellen McFarland. his father was (I think) Benjamin, mar. Nancy?Does any of this work for you?It may be that My Mary was a sister to your Martha.