The two youngest children ( Nelly and George ) moved to Mount Vernon to live with George and Martha Washington .
After the 1781 death of their father , the eldest two daughters ( Elizabeth and Martha ) continued to live with their mother at Abingdon .
The two youngest children ( Nelly and George ) moved to Mount Vernon to live with George and Martha   .
After the 1781 death of their father , the eldest two daughters ( Elizabeth and Martha ) continued to live with their mother at Abingdon .