I think George Washington NUNN Father is Thomas Dunn NUNN and Frances Clark
I think Thomas Dunn NUNN Father is Ingram NUNN and Elizabeth Gatewood Dunn.
Here is some additional information on William Henry NUNN and some Census.
In 1875 at the age of 87, William NUNN Grandmother Frances Clark NUNN
a widow gave the farm to Grandson, William Henry NUNN and accompanied her other son, Elbert, back to his home in Saline Co. MO where she was listed in the 1880 Census age 92.
When the youngst child entered Guildford College, the farm was sold and they moved to guildford College.
Household: 1880 Ridgeway, Henry, Virginia
Name Relation Marital Status Gender Race Age Birthplace Occupation Father's Birthplace Mother's Birthplace
W. H. NUNN Self M Male W 34 VA Farmer VA VA
Rosaella NUNN Wife M Female W 26 VA Keeping House VA VA
George NUNN Son S Male W 8 NC VA VA
Annie NUNN Dau S Female W 6 NC VA VA
William NUNN Son S Male W 2 VA VA VA
NUNN Son S Male W 1M VA VA VA