Mary was the daughter of unknown parents. The date and place of her birth have not been found.
She died about 1868. The place is not known.
Her husband was Francis Patrick Henry Sr, who she married in 1820 in Alabama. Their eight known children were James Augustus (1821-?), Elizabeth (1824-?), Henry (1826->1830), William (1828-?), John (1831-?), Sophrona Jane (1837-?), Francis P. (1840-?) and Adeline (1846-?).